[C#/WEB API] Microsoft.AspNet.WebApi.SelfHost 누겟 설치하기
■ Microsoft.AspNet.WebApi.SelfHost 누겟을 설치하는 방법을 보여준다. 1. Visual Studio를 실행한다. 2. [도구] / [NuGet 패키지 관리자] / [패키지 관리자 콘솔] 메뉴를 실행한다.
[카테고리:] MICROSOFT
[C#/WEB API/.NET5] JWT 토큰 생성하기
■ JWT 토큰을 생성하는 방법을 보여준다. ▶ 예제 코드 (C#)
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using System; using System.Collections.Generic; using System.IdentityModel.Tokens.Jwt; using System.Security.Claims; using System.Text; using Microsoft.IdentityModel.Tokens; #region JWT 토큰 생성하기 - GenerateJWTToken(claimEnumerable, secretKey, issuer, audience) /// <summary> /// JWT 토큰 생성하기 /// </summary> /// <param name="claimEnumerable">클레임 열거 가능형</param> /// <param name="secretKey">비밀 키</param> /// <param name="issuer">발행자</param> /// <param name="audience">청취자</param> /// <returns>JWT 토큰</returns> public string GenerateJWTToken(IEnumerable<Claim> claimEnumerable, string secretKey, string issuer, string audience) { byte[] keyByteArray = Encoding.UTF8.GetBytes(secretKey); SymmetricSecurityKey symmetricSecurityKey = new(keyByteArray); SigningCredentials credentials = new(symmetricSecurityKey, SecurityAlgorithms.HmacSha256); JwtSecurityToken token = new ( issuer : issuer, audience : audience, claims : claimEnumerable, expires : DateTime.Now.AddHours(1), signingCredentials : credentials ); string tokenString = new JwtSecurityTokenHandler().WriteToken(token); return tokenString; } #endregion |
[C#/WEB API/.NET5] JWT 토큰에서 클레임 주체 구하기
■ JWT 토큰에서 클레임 주체를 구하는 방법을 보여준다. ▶ 예제 코드 (C#)
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using System; using System.IdentityModel.Tokens.Jwt; using System.Security.Claims; using System.Text; using Microsoft.IdentityModel.Tokens; #region 클레임 주체 구하기 - GetClaimsPrincipal(token, secretKey) /// <summary> /// 클레임 주체 구하기 /// </summary> /// <param name="token">토큰</param> /// <param name="secretKey">비밀 키</param> /// <returns>클레임 주체</returns> public ClaimsPrincipal GetClaimsPrincipal(string token, string secretKey) { TokenValidationParameters parameters = new() { ValidateIssuer = false, ValidateAudience = false, ValidateLifetime = false, ValidateIssuerSigningKey = true, IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(secretKey)), }; JwtSecurityTokenHandler tokenHandler = new(); ClaimsPrincipal principal = tokenHandler.ValidateToken(token, parameters, out SecurityToken securityToken); if ( securityToken is not JwtSecurityToken jwtSecurityToken || !jwtSecurityToken.Header.Alg.Equals(SecurityAlgorithms.HmacSha256, StringComparison.InvariantCultureIgnoreCase) ) { throw new SecurityTokenException("Invalid token"); } return principal; } #endregion |
[C#/WEB API/.NET5] WEB API에서 JWT(Json Web Token) 인증 사용하기
■ WEB API에서 JWT(Json Web Token) 인증을 사용하는 방법을 보여준다. [TestLibrary 프로젝트] ▶ User.cs
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namespace TestLibrary { /// <summary> /// 사용자 /// </summary> public class User { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 사용자명 - UserName /// <summary> /// 사용자명 /// </summary> public string UserName { get; set; } #endregion #region 패스워드 - Password /// <summary> /// 패스워드 /// </summary> public string Password { get; set; } #endregion #region 사용자 역할 - UserRole /// <summary> /// 사용자 역할 /// </summary> public string UserRole { get; set; } #endregion } } |
▶ WeatherForecast.cs
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using System; namespace TestLibrary { /// <summary> /// 기상 예보 /// </summary> public class WeatherForecast { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 일자 - Date /// <summary> /// 일자 /// </summary> public DateTime Date { get; set; } #endregion #region 섭씨 온도 - TemperatureC /// <summary> /// 섭씨 온도 /// </summary> public int TemperatureC { get; set; } #endregion #region 화씨 온도 - TemperatureF /// <summary> /// 화씨 온도 /// </summary> public int TemperatureF => 32 + (int)(TemperatureC / 0.5556); #endregion #region 요약 - Summary /// <summary> /// 요약 /// </summary> public string Summary { get; set; } #endregion } } |
[TestServer 프로젝트] ▶ appsettings.json
[C#/WEB API/.NET5] 스트림을 사용해 대용량 파일 업로드 하기
■ 스트림을 사용해 대용량 파일을 업로드하는 방법을 보여준다. [TestServer 프로젝트] ▶ launchSettings.json
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{ "$schema" : "http://json.schemastore.org/launchsettings.json", "iisSettings" : { "windowsAuthentication" : false, "anonymousAuthentication" : true, "iisExpress" : { "applicationUrl" : "http://localhost:41483", "sslPort" : 44362 } }, "profiles" : { "IIS Express" : { "commandName" : "IISExpress", "launchBrowser" : true, "launchUrl" : "swagger", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } }, "TestServer" : { "commandName" : "Project", "dotnetRunMessages" : "true", "launchBrowser" : true, "launchUrl" : "swagger", "applicationUrl" : "https://localhost:5001;http://localhost:5000", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } } } } |
▶ appsettings.json
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{ "Logging" : { "LogLevel" : { "Default" : "Information", "Microsoft" : "Warning", "Microsoft.Hosting.Lifetime" : "Information" } }, "AllowedHosts" : "*", "APIKey" : "A7A54AD3-91E1-4C3A-98C6-A17E39C9EA3D" } |
▶ web.config
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<?xml version="1.0" encoding="utf-8"?> <configuration> <system.webServer> <security> <requestFiltering> <requestLimits maxAllowedContentLength="2147483648" /> </requestFiltering> </security> </system.webServer> </configuration> |
※ IIS Express
[C#/WEB API/.NET5] 대용량 파일 업로드 하기 (2GB 제한)
■ 대용량 파일을 업로드하는 방법을 보여준다. (2GB 제한) [TestServer 프로젝트] ▶ launchSettings.json
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{ "$schema" : "http://json.schemastore.org/launchsettings.json", "iisSettings" : { "windowsAuthentication" : false, "anonymousAuthentication" : true, "iisExpress" : { "applicationUrl" : "http://localhost:41483", "sslPort" : 44362 } }, "profiles" : { "IIS Express" : { "commandName" : "IISExpress", "launchBrowser" : true, "launchUrl" : "swagger", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } }, "TestServer" : { "commandName" : "Project", "dotnetRunMessages" : "true", "launchBrowser" : true, "launchUrl" : "swagger", "applicationUrl" : "https://localhost:5001;http://localhost:5000", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } } } } |
▶ appsettings.json
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{ "Logging" : { "LogLevel" : { "Default" : "Information", "Microsoft" : "Warning", "Microsoft.Hosting.Lifetime" : "Information" } }, "AllowedHosts" : "*", "APIKey" : "A7A54AD3-91E1-4C3A-98C6-A17E39C9EA3D" } |
▶ web.config
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<?xml version="1.0" encoding="utf-8"?> <configuration> <system.webServer> <security> <requestFiltering> <requestLimits maxAllowedContentLength="2147483648" /> </requestFiltering> </security> </system.webServer> </configuration> |
▶ APIKeyAttribute.cs
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using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.Mvc.Filters; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.DependencyInjection; using System; using System.Threading.Tasks; namespace TestServer { /// <summary> /// API 키 어트리뷰트 /// </summary> [AttributeUsage(validOn: AttributeTargets.Class)] public class APIKeyAttribute : Attribute, IAsyncActionFilter { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// API 키명 /// </summary> public static readonly string API_KEY_NAME = "APIKey"; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 액션 실행시 처리하기 (비동기) - OnActionExecutionAsync(context, nextAction) /// <summary> /// 액션 실행시 처리하기 (비동기) /// </summary> /// <param name="context">액션 실행 컨텍스트</param> /// <param name="nextAction">다음 액션 실행 대리자</param> /// <returns>태스크</returns> public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate nextAction) { if(!context.HttpContext.Request.Headers.TryGetValue(API_KEY_NAME, out var sourceAPIKey)) { context.Result = new ContentResult() { StatusCode = 401, Content = "API Key was not provided." }; return; } IConfiguration configuration = context.HttpContext.RequestServices.GetRequiredService<IConfiguration>(); string targetAPIKey = configuration.GetValue<string>(API_KEY_NAME); if(!targetAPIKey.Equals(sourceAPIKey)) { context.Result = new ContentResult() { StatusCode = 401, Content = "API Key is not valid." }; return; } await nextAction(); } #endregion } } |
[C#/WEB API/.NET5] 대용량 데이터를 스트리밍 방식으로 전달받기 (PostgreSQL 연동)
■ 대용량 데이터를 스트리밍 방식으로 전달받는 방법을 보여준다. (PostgreSQL 연동) [TestClient 프로젝트] ▶ Program.cs
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using System; using System.Collections.Generic; using System.IO; using System.Net; using System.Net.Http; using System.Net.Http.Headers; using System.Text; using Newtonsoft.Json; namespace TestClient { /// <summary> /// 프로그램 /// </summary> class Program { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 프로그램 시작하기 - Main() /// <summary> /// 프로그램 시작하기 /// </summary> static void Main() { string url = "https://localhost:44352/api/data/inquirylist"; DataSearchConditionModel searchCondition = new DataSearchConditionModel(); searchCondition.MENU_ID = "A007A6D5-35E6-46A2-A3BD-1B84843BB76C"; searchCondition.MEMBER_GRADE = "99"; searchCondition.LIMIT_AGE = "99"; searchCondition.WRITE_DATE1 = new DateTime(2021, 7 , 1 ); searchCondition.WRITE_DATE2 = new DateTime(2021, 7 , 25); searchCondition.CREATE_TIME1 = new DateTime(1 , 1 , 1 ); searchCondition.CREATE_TIME2 = new DateTime(9999, 12, 31); int i = 0; var result = GetPOSTData1<DataModel>(url, searchCondition); foreach(DataModel photo in result) { Console.WriteLine("{0} {1} {2}", i++, photo.ID, photo.SUBJECT); } } #endregion #region POST 스트림 구하기 - POSTGetStream(serverURL, contentType, encoding, argument, timeOut) /// <summary> /// POST 스트림 구하기 /// </summary> /// <param name="serverURL">서버 URL</param> /// <param name="contentType">컨텐츠 타입</param> /// <param name="encoding">인코딩</param> /// <param name="argument">인자 문자열</param> /// <param name="timeOut">타임 아웃</param> /// <returns>POST 스트림</returns> private static Stream POSTGetStream(string serverURL, string contentType, Encoding encoding, string argument, int? timeOut = null) { byte[] argumentArray = encoding.GetBytes(argument); HttpWebRequest request = WebRequest.Create(serverURL) as HttpWebRequest; request.ProtocolVersion = HttpVersion.Version11; request.AllowAutoRedirect = true; request.AllowWriteStreamBuffering = true; request.Method = WebRequestMethods.Http.Post; request.ContentType = contentType; request.ContentLength = argumentArray.Length; if(timeOut.HasValue) { request.Timeout = timeOut.Value; } using(Stream requestStream = request.GetRequestStream()) { requestStream.Write(argumentArray, 0, argumentArray.Length); } HttpWebResponse response = request.GetResponse() as HttpWebResponse; Stream responseStream = response.GetResponseStream(); return responseStream; } #endregion #region POST 데이터 구하기 1 - GetPOSTData1<TResultItem>(url, source) /// <summary> /// POST 데이터 구하기 1 /// </summary> /// <typeparam name="TResultItem">결과 항목 타입</typeparam> /// <param name="url">URL</param> /// <param name="source">소스 객체</param> /// <returns>결과 항목 타입 열거 가능형</returns> private static IEnumerable<TResultItem> GetPOSTData1<TResultItem>(string url, object source) { string sourceJSON = JsonConvert.SerializeObject(source); HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, url); requestMessage.Content = new StringContent(sourceJSON, Encoding.UTF8, "application/json"); requestMessage.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); HttpClient client = new HttpClient(); HttpResponseMessage responseMessage = client.SendAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead).Result; responseMessage.EnsureSuccessStatusCode(); using(Stream stream = responseMessage.Content.ReadAsStreamAsync().Result) { using(StreamReader streamReader = new StreamReader(stream)) { JsonSerializer serializer = new JsonSerializer(); using(JsonTextReader jsonTextReader = new JsonTextReader(streamReader)) { while(jsonTextReader.Read()) { if(jsonTextReader.TokenType != JsonToken.StartArray && jsonTextReader.TokenType != JsonToken.EndArray) { yield return serializer.Deserialize<TResultItem>(jsonTextReader); } } } } } } #endregion #region POST 데이터 구하기 2 - GetPOSTData2<TResultItem>(url, source) /// <summary> /// POST 데이터 구하기 2 /// </summary> /// <typeparam name="TResultItem">결과 항목 타입</typeparam> /// <param name="url">URL</param> /// <param name="source">소스 객체</param> /// <returns>결과 항목 타입 열거 가능형</returns> private static IEnumerable<TResultItem> GetPOSTData2<TResultItem>(string url, object source) { string sourceJSON = JsonConvert.SerializeObject(source); using(Stream stream = POSTGetStream(url, "application/json; charset=utf-8", Encoding.UTF8, sourceJSON)) { using(StreamReader streamReader = new StreamReader(stream)) { using(JsonTextReader jsonTextReader = new JsonTextReader(streamReader)) { JsonSerializer serializer = new JsonSerializer(); while(jsonTextReader.Read()) { if(jsonTextReader.TokenType != JsonToken.StartArray && jsonTextReader.TokenType != JsonToken.EndArray) { yield return serializer.Deserialize<TResultItem>(jsonTextReader); } } } } } } #endregion } } |
[TestServer 프로젝트] ▶ launchSettings.json
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{ "$schema" : "http://json.schemastore.org/launchsettings.json", "iisSettings" : { "windowsAuthentication" : false, "anonymousAuthentication" : true, "iisExpress" : { "applicationUrl" : "http://localhost:35043", "sslPort" : 44352 } }, "profiles" : { "IIS Express" : { "commandName" : "IISExpress", "launchBrowser" : true, "launchUrl" : "swagger", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } }, "TestServer" : { "commandName" : "Project", "dotnetRunMessages" : "true", "launchBrowser" : true, "launchUrl" : "swagger", "applicationUrl" : "https://localhost:5001;http://localhost:5000", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } } } } |
▶ appsettings.json
[C#/WEB API/.NET5] PostgreSQL 데이터베이스 사용하기
■ PostgreSQL 데이터베이스를 사용하는 방법을 보여준다. ▶ launchSettings.json
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{ "$schema" : "http://json.schemastore.org/launchsettings.json", "iisSettings" : { "windowsAuthentication" : false, "anonymousAuthentication" : true, "iisExpress" : { "applicationUrl" : "http://localhost:35043", "sslPort" : 44352 } }, "profiles" : { "IIS Express" : { "commandName" : "IISExpress", "launchBrowser" : true, "launchUrl" : "swagger", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } }, "TestProject" : { "commandName" : "Project", "dotnetRunMessages" : "true", "launchBrowser" : true, "launchUrl" : "swagger", "applicationUrl" : "https://localhost:5001;http://localhost:5000", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } } } } |
▶ appsettings.json
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{ "Logging" : { "LogLevel" : { "Default" : "Information", "Microsoft" : "Warning", "Microsoft.Hosting.Lifetime" : "Information" } }, "AllowedHosts" : "*", "ConnectionStrings" : { "DefaultConnection" : "Server=localhost;Port=5432;Database=arca;User Id=admin;Password=1234;" } } |
▶ Models/CodeModel.cs
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namespace TestProject.Models { /// <summary> /// 코드 모델 /// </summary> public class CodeModel { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region ID - ID (NOT NULL) /// <summary> /// ID /// </summary> public string ID { get; set; } #endregion #region 그룹 ID - GROUP_ID (NOT NULL) /// <summary> /// 그룹 ID /// </summary> public string GROUP_ID { get; set; } #endregion #region 명칭 - NAME (NOT NULL) /// <summary> /// 명칭 /// </summary> public string NAME { get; set; } #endregion #region 값 - VALUE (NOT NULL) /// <summary> /// 값 /// </summary> public string VALUE { get; set; } #endregion #region 표시 순서 - DISPLAY_ORDER (NOT NULL) /// <summary> /// 표시 순서 /// </summary> public int DISPLAY_ORDER { get; set; } #endregion #region 상태 코드 - STATUS_CODE (NOT NULL) /// <summary> /// 상태 코드 /// </summary> /// <remarks> /// A : 활성 /// D : 삭제 /// </remarks> public string STATUS_CODE { get; set; } #endregion } } |
▶ Models/CodeKeyModel.cs
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namespace TestProject.Models { /// <summary> /// 코드 키 모델 /// </summary> public class CodeKeyModel { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region ID - ID /// <summary> /// ID /// </summary> public string ID { get; set; } #endregion #region 그룹 ID - GROUP_ID /// <summary> /// 그룹 ID /// </summary> public string GROUP_ID { get; set; } #endregion } } |
▶ CodeController.cs
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using Microsoft.AspNetCore.Mvc; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.Logging; using System.Collections.Generic; using System.Data; using System.Linq; using Npgsql; using Dapper; using TestProject.Models; namespace TestProject.Controllers { [ApiController] [Route("[controller]")] public class CodeController : ControllerBase { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region INQUIRY_LIST_SQL /// <summary> /// INQUIRY_LIST_SQL /// </summary> private static string INQUIRY_LIST_SQL = @" SELECT A.ID AS ID ,A.GROUP_ID AS GROUP_ID ,A.NAME AS NAME ,A.VALUE AS VALUE ,A.DISPLAY_ORDER AS DISPLAY_ORDER ,A.STATUS_CODE AS STATUS_CODE FROM COM_CODE A WHERE A.GROUP_ID = @GROUP_ID ORDER BY A.DISPLAY_ORDER ASC "; #endregion #region INQUIRY_ITEM /// <summary> /// INQUIRY_ITEM_SQL /// </summary> private static string INQUIRY_ITEM_SQL = @" SELECT A.ID AS ID ,A.GROUP_ID AS GROUP_ID ,A.NAME AS NAME ,A.VALUE AS VALUE ,A.DISPLAY_ORDER AS DISPLAY_ORDER ,A.STATUS_CODE AS STATUS_CODE FROM COM_CODE A WHERE A.ID = @ID "; #endregion ////////////////////////////////////////////////////////////////////////////////////////// Instance //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 구성 /// </summary> private readonly IConfiguration configuration; /// <summary> /// 로거 /// </summary> private readonly ILogger<CodeController> logger; /// <summary> /// 연결 문자열 /// </summary> private readonly string connectionString; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - CodeController(configuration, logger) /// <summary> /// 생성자 /// </summary> /// <param name="configuration">구성</param> /// <param name="logger">로거</param> public CodeController(IConfiguration configuration, ILogger<CodeController> logger) { this.configuration = configuration; this.logger = logger; this.connectionString = configuration.GetConnectionString("DefaultConnection"); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 리스트 조회하기 - InquiryList(groupID) /// <summary> /// 리스트 조회하기 /// </summary> /// <param name="groupID">그룹 ID</param> /// <returns>리스트</returns> [HttpGet] [Route("InquiryList")] public IEnumerable<CodeModel> InquiryList(string groupID) { using(IDbConnection connection = CreateConnection()) { var result = connection.Query<CodeModel>(INQUIRY_LIST_SQL, new CodeKeyModel { GROUP_ID = groupID }); return result; } } #endregion #region 항목 조회하기 - InquiryItem(id) /// <summary> /// 항목 조회하기 /// </summary> /// <param name="id">ID</param> /// <returns></returns> [HttpGet] [Route("InquiryItem")] public CodeModel InquiryItem(string id) { using(IDbConnection connection = CreateConnection()) { var result = connection.Query<CodeModel>(INQUIRY_ITEM_SQL, new CodeKeyModel { ID = id }); return result.FirstOrDefault(); } } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 연결 생성하기 - CreateConnection() /// <summary> /// 연결 생성하기 /// </summary> /// <returns>연결</returns> private IDbConnection CreateConnection() { return new NpgsqlConnection(this.connectionString); } #endregion } } |
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[C#/WEB API/.NET5] 커스텀 미들웨어를 사용해 API 키 인증하기
■ 커스텀 미들웨어를 사용해 API 키를 인증하는 방법을 보여준다. [TestServer 프로젝트] ▶ Properteis/launchSettings.json
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{ "$schema" : "http://json.schemastore.org/launchsettings.json", "iisSettings" : { "windowsAuthentication" : false, "anonymousAuthentication" : true, "iisExpress" : { "applicationUrl" : "http://localhost:41483", "sslPort" : 44362 } }, "profiles" : { "IIS Express" : { "commandName" : "IISExpress", "launchBrowser" : true, "launchUrl" : "swagger", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } }, "TestServer" : { "commandName" : "Project", "dotnetRunMessages" : "true", "launchBrowser" : true, "launchUrl" : "swagger", "applicationUrl" : "https://localhost:5001;http://localhost:5000", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } } } } |
▶ appsettings.json
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{ "Logging" : { "LogLevel" : { "Default" : "Information", "Microsoft" : "Warning", "Microsoft.Hosting.Lifetime" : "Information" } }, "AllowedHosts" : "*", "APIKey" : "A7A54AD3-91E1-4C3A-98C6-A17E39C9EA3D" } |
▶ APIKeyMiddleware.cs
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using Microsoft.AspNetCore.Http; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.DependencyInjection; using System.Threading.Tasks; namespace TestServer { /// <summary> /// API 키 미들웨어 /// </summary> public class APIKeyMiddleware { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// API 키명 /// </summary> private static readonly string API_KEY_NAME = "APIKey"; #endregion ////////////////////////////////////////////////////////////////////////////////////////// Instance //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 다음 액션 /// </summary> private readonly RequestDelegate nextAction; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - APIKeyMiddleware(nextAction) /// <summary> /// 생성자 /// </summary> /// <param name="nextAction">다음 액션</param> public APIKeyMiddleware(RequestDelegate nextAction) { this.nextAction = nextAction; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 호출하기 (비동기) - InvokeAsync(context) /// <summary> /// 호출하기 (비동기) /// </summary> /// <param name="context">HTTP 컨텍스트</param> /// <returns>태스크</returns> public async Task InvokeAsync(HttpContext context) { if(!context.Request.Headers.TryGetValue(API_KEY_NAME, out var sourceAPIKey)) { context.Response.StatusCode = 401; await context.Response.WriteAsync("API Key was not provided."); return; } IConfiguration configuration = context.RequestServices.GetRequiredService<IConfiguration>(); string targetAPIKey = configuration.GetValue<string>(API_KEY_NAME); if(!targetAPIKey.Equals(sourceAPIKey)) { context.Response.StatusCode = 401; await context.Response.WriteAsync("Unauthorized client."); return; } await nextAction(context); } #endregion } } |
▶ WeatherForecast.cs
[C#/WEB API/.NET5] IAsyncActionFilter 인터페이스 : API 키 인증하기
■ IAsyncActionFilter 인터페이스를 사용해 API 키를 인증하는 방법을 보여준다. [TestServer 프로젝트] ▶ Properteis/launchSettings.json
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{ "$schema" : "http://json.schemastore.org/launchsettings.json", "iisSettings" : { "windowsAuthentication" : false, "anonymousAuthentication" : true, "iisExpress" : { "applicationUrl" : "http://localhost:41483", "sslPort" : 44362 } }, "profiles" : { "IIS Express" : { "commandName" : "IISExpress", "launchBrowser" : true, "launchUrl" : "swagger", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } }, "TestServer" : { "commandName" : "Project", "dotnetRunMessages" : "true", "launchBrowser" : true, "launchUrl" : "swagger", "applicationUrl" : "https://localhost:5001;http://localhost:5000", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } } } } |
▶ appsettings.json
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{ "Logging" : { "LogLevel" : { "Default" : "Information", "Microsoft" : "Warning", "Microsoft.Hosting.Lifetime" : "Information" } }, "AllowedHosts" : "*", "APIKey" : "A7A54AD3-91E1-4C3A-98C6-A17E39C9EA3D" } |
▶ APIKeyAttribute.cs
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using Microsoft.AspNetCore.Mvc; using Microsoft.AspNetCore.Mvc.Filters; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.DependencyInjection; using System; using System.Threading.Tasks; namespace TestServer { /// <summary> /// API 키 어트리뷰트 /// </summary> [AttributeUsage(validOn: AttributeTargets.Class)] public class APIKeyAttribute : Attribute, IAsyncActionFilter { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// API 키명 /// </summary> public static readonly string API_KEY_NAME = "APIKey"; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 액션 실행시 처리하기 (비동기) - OnActionExecutionAsync(context, nextAction) /// <summary> /// 액션 실행시 처리하기 (비동기) /// </summary> /// <param name="context">액션 실행 컨텍스트</param> /// <param name="nextAction">다음 액션 실행 대리자</param> /// <returns>태스크</returns> public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate nextAction) { if(!context.HttpContext.Request.Headers.TryGetValue(API_KEY_NAME, out var sourceAPIKey)) { context.Result = new ContentResult() { StatusCode = 401, Content = "API Key was not provided." }; return; } IConfiguration configuration = context.HttpContext.RequestServices.GetRequiredService<IConfiguration>(); string targetAPIKey = configuration.GetValue<string>(API_KEY_NAME); if(!targetAPIKey.Equals(sourceAPIKey)) { context.Result = new ContentResult() { StatusCode = 401, Content = "API Key is not valid." }; return; } await nextAction(); } #endregion } } |
▶ WeatherForecast.cs
[C#/WEB API/.NETCORE] ControllerBase 클래스 : StatusCode 메소드를 사용해 검증 오류 처리하기
■ ControllerBase 클래스의 StatusCode 메소드를 사용해 검증 오류를 처리하는 방법을 보여준다. ▶ Startup.cs
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using Microsoft.AspNetCore.Builder; using Microsoft.AspNetCore.Hosting; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Hosting; namespace TestProject { /// <summary> /// 시작 /// </summary> public class Startup { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 구성 - Configuration /// <summary> /// 구성 /// </summary> public IConfiguration Configuration { get; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - Startup(configuration) /// <summary> /// 생성자 /// </summary> /// <param name="configuration">구성</param> public Startup(IConfiguration configuration) { Configuration = configuration; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 서비스 컬렉션 구성하기 - ConfigureServices(services) /// <summary> /// 서비스 컬렉션 구성하기 /// </summary> /// <param name="services">서비스 컬렉션</param> public void ConfigureServices(IServiceCollection services) { services.AddControllersWithViews(); } #endregion #region 구성하기 - Configure(app, environment) /// <summary> /// 구성하기 /// </summary> /// <param name="app">애플리케이션 빌더</param> /// <param name="environment">웹 호스트 환경</param> public void Configure(IApplicationBuilder app, IWebHostEnvironment environment) { if(environment.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseHttpsRedirection(); app.UseRouting(); app.UseAuthorization(); app.UseEndpoints ( endpoints => { endpoints.MapControllers(); } ); } #endregion } } |
▶ Controllers/TestController.cs
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using Microsoft.AspNetCore.Http; using Microsoft.AspNetCore.Mvc; using Microsoft.Docs.Samples; namespace TestProject.Controllers { /// <summary> /// 테스트 컨트롤러 /// </summary> [ApiController] [Route("api/[controller]")] public class TestController : ControllerBase { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public // GET /api/test/3 #region 구하기 - Get(id) /// <summary> /// 구하기 /// </summary> /// <param name="id">ID</param> /// <returns>액션 결과</returns> [HttpGet("{id}")] public IActionResult Get(string id) { if(id.Contains('0')) { return StatusCode(StatusCodes.Status406NotAcceptable); } return ControllerContext.MyDisplayRouteInfo(id); } #endregion } } |
TestProject.zip
[C#/WEB API/.NETCORE] IRouteConstraint 인터페이스 : 커스텀 경로 제약 조건 설정하기
■ IRouteConstraint 인터페이스를 사용해 커스텀 경로 제약 조건을 설정하는 방법을 보여준다. ▶ CustomNameConstraint.cs
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using Microsoft.AspNetCore.Http; using Microsoft.AspNetCore.Routing; using System; using System.Globalization; using System.Text.RegularExpressions; namespace TestProject { /// <summary> /// 커스텀 명칭 제약 조건 /// </summary> public class CustomNameConstraint : IRouteConstraint { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 정규식 /// </summary> private Regex regex; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - CustomNameConstraint() /// <summary> /// 생성자 /// </summary> public CustomNameConstraint() { this.regex = new Regex ( @"^[1-9]*$", RegexOptions.CultureInvariant | RegexOptions.IgnoreCase, TimeSpan.FromMilliseconds(100) ); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 매칭 여부 구하기 - Match(httpContext, route, routeKey, valueDictionary, routeDirection) /// <summary> /// 매칭 여부 구하기 /// </summary> /// <param name="httpContext">HTTP 컨텍스트</param> /// <param name="router">라우터</param> /// <param name="routeKey">경로 키</param> /// <param name="valueDictionary">경로 값 딕셔너리</param> /// <param name="routeDirection">경로 방향</param> /// <returns>매칭 여부</returns> public bool Match ( HttpContext httpContext, IRouter router, string routeKey, RouteValueDictionary valueDictionary, RouteDirection routeDirection ) { if(valueDictionary.TryGetValue(routeKey, out object value)) { string parameterValue = Convert.ToString(value, CultureInfo.InvariantCulture); if(parameterValue == null) { return false; } return regex.IsMatch(parameterValue); } return false; } #endregion } } |
▶ Startup.cs
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using Microsoft.AspNetCore.Builder; using Microsoft.AspNetCore.Hosting; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Hosting; namespace TestProject { /// <summary> /// 시작 /// </summary> public class Startup { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 구성 - Configuration /// <summary> /// 구성 /// </summary> public IConfiguration Configuration { get; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - Startup(configuration) /// <summary> /// 생성자 /// </summary> /// <param name="configuration">구성</param> public Startup(IConfiguration configuration) { Configuration = configuration; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 서비스 컬렉션 구성하기 - ConfigureServices(services) /// <summary> /// 서비스 컬렉션 구성하기 /// </summary> /// <param name="services">서비스 컬렉션</param> public void ConfigureServices(IServiceCollection services) { services.AddControllersWithViews(); services.AddRouting ( options => { options.ConstraintMap.Add("customName", typeof(CustomNameConstraint)); } ); } #endregion #region 구성하기 - Configure(app, environment) /// <summary> /// 구성하기 /// </summary> /// <param name="app">애플리케이션 빌더</param> /// <param name="environment">웹 호스트 환경</param> public void Configure(IApplicationBuilder app, IWebHostEnvironment environment) { if(environment.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseHttpsRedirection(); app.UseRouting(); app.UseAuthorization(); app.UseEndpoints ( endpoints => { endpoints.MapControllers(); } ); } #endregion } } |
▶ Controllers/TestController.cs
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using Microsoft.AspNetCore.Mvc; using Microsoft.Docs.Samples; namespace TestProject.Controllers { /// <summary> /// 테스트 컨트롤러 /// </summary> [ApiController] [Route("api/[controller]")] public class TestController : ControllerBase { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public // GET /api/test/3 #region 구하기 - Get(id) /// <summary> /// 구하기 /// </summary> /// <param name="id">ID</param> /// <returns>액션 결과</returns> [HttpGet("{id:customName}")] public IActionResult Get(string id) { return ControllerContext.MyDisplayRouteInfo(id); } #endregion // GET /api/test/my/3 #region 구하기 - Get(id) /// <summary> /// 구하기 /// </summary> /// <param name="id">ID</param> /// <returns>액션 결과</returns> [HttpGet("my/{id:customName}")] public IActionResult Get(int id) { return ControllerContext.MyDisplayRouteInfo(id); } #endregion } } |
TestProject.zip
[C#/WEB API/.NETCORE] 스캐폴딩 기능을 사용해 WEB API 앱 만들기
■ 스캐폴딩 기능을 사용해 WEB API 앱을 만드는 방법을 보여준다. ▶ Models/TodoModel.cs
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namespace TestProject.Models { /// <summary> /// 할일 모델 /// </summary> public class TodoModel { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region ID - ID /// <summary> /// ID /// </summary> public long ID { get; set; } #endregion #region 제목 - Name /// <summary> /// 제목 /// </summary> public string Name { get; set; } #endregion #region 완료 여부 - IsComplete /// <summary> /// 완료 여부 /// </summary> public bool IsComplete { get; set; } #endregion } } |
▶ Data/DatabaseContext.cs
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using Microsoft.EntityFrameworkCore; using TestProject.Models; namespace TestProject.Data { /// <summary> /// 데이터베이스 컨텍스트 /// </summary> public class DatabaseContext : DbContext { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 할일 - Todo /// <summary> /// 할일 /// </summary> public DbSet<TodoModel> Todo { get; set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - DatabaseContext(options) /// <summary> /// 생성자 /// </summary> /// <param name="options">옵션</param> public DatabaseContext(DbContextOptions<DatabaseContext> options) : base(options) { } #endregion } } |
▶ Startup.cs
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using Microsoft.AspNetCore.Builder; using Microsoft.AspNetCore.Hosting; using Microsoft.EntityFrameworkCore; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Hosting; using TestProject.Data; namespace TestProject { /// <summary> /// 시작 /// </summary> public class Startup { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 구성 - Configuration /// <summary> /// 구성 /// </summary> public IConfiguration Configuration { get; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - Startup(configuration) /// <summary> /// 생성자 /// </summary> /// <param name="configuration">구성</param> public Startup(IConfiguration configuration) { Configuration = configuration; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 서비스 컬렉션 구성하기 - ConfigureServices(services) /// <summary> /// 서비스 컬렉션 구성하기 /// </summary> /// <param name="services">서비스 컬렉션</param> public void ConfigureServices(IServiceCollection services) { services.AddDbContext<DatabaseContext>(options => options.UseInMemoryDatabase("TodoList")); services.AddControllers(); } #endregion #region 구성하기 - Configure(app, environment) /// <summary> /// 구성하기 /// </summary> /// <param name="app">애플리케이션 빌더</param> /// <param name="environment">웹 호스트 환경</param> public void Configure(IApplicationBuilder app, IWebHostEnvironment environment) { if(environment.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseHttpsRedirection(); app.UseRouting(); app.UseAuthorization(); app.UseEndpoints ( endpointRouterBuilder => { endpointRouterBuilder.MapControllers(); } ); } #endregion } } |
▶ Controllers/TodoController.cs
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using Microsoft.AspNetCore.Mvc; using Microsoft.EntityFrameworkCore; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; using TestProject.Data; using TestProject.Models; namespace TestProject.Controllers { /// <summary> /// 할일 컨트롤러 /// </summary> [ApiController] [Route("api/[controller]")] public class TodoController : ControllerBase { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 데이터베이스 컨텍스트 /// </summary> private readonly DatabaseContext context; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - TodoController(context) /// <summary> /// 생성자 /// </summary> /// <param name="context">컨텍스트</param> public TodoController(DatabaseContext context) { this.context = context; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region GET 처리하기 - Get() /// <summary> /// GET 처리하기 /// </summary> /// <returns>액션 결과 태스크</returns> [HttpGet] public async Task<ActionResult<IEnumerable<TodoModel>>> Get() { return await this.context.Todo.ToListAsync(); } #endregion #region GET 처리하기 - Get(id) /// <summary> /// GET 처리하기 /// </summary> /// <param name="id">ID</param> /// <returns>액션 결과 태스크</returns> [HttpGet("{id}")] public async Task<ActionResult<TodoModel>> Get(long id) { TodoModel todo = await this.context.Todo.FindAsync(id); if(todo == null) { return NotFound(); } return todo; } #endregion #region POST 처리하기 - Post(todo) /// <summary> /// POST 처리하기 /// </summary> /// <param name="todo">할일</param> /// <returns>액션 결과 태스크</returns> [HttpPost] public async Task<ActionResult<TodoModel>> Post(TodoModel todo) { this.context.Todo.Add(todo); await this.context.SaveChangesAsync(); return CreatedAtAction("Get", new { id = todo.ID }, todo); } #endregion #region PUT 처리하기 - Put(id, todo) /// <summary> /// PUT 처리하기 /// </summary> /// <param name="id">ID</param> /// <param name="todo">할일</param> /// <returns>액션 결과 태스크</returns> [HttpPut("{id}")] public async Task<IActionResult> Put(long id, TodoModel todo) { if(id != todo.ID) { return BadRequest(); } this.context.Entry(todo).State = EntityState.Modified; try { await this.context.SaveChangesAsync(); } catch(DbUpdateConcurrencyException) { if(!TodoExists(id)) { return NotFound(); } else { throw; } } return NoContent(); } #endregion #region DELETE 처리하기 - Delete(id) /// <summary> /// DELETE 처리하기 /// </summary> /// <param name="id">ID</param> /// <returns>액션 결과 태스크</returns> [HttpDelete("{id}")] public async Task<ActionResult<TodoModel>> Delete(long id) { TodoModel todo = await this.context.Todo.FindAsync(id); if(todo == null) { return NotFound(); } this.context.Todo.Remove(todo); await this.context.SaveChangesAsync(); return todo; } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 할일 존재 여부 구하기 - TodoExists(id) /// <summary> /// 할일 존재 여부 구하기 /// </summary> /// <param name="id"></param> /// <returns>할일 존재 여부</returns> private bool TodoExists(long id) { return this.context.Todo.Any(e => e.ID == id); } #endregion } } |
[C#/WEB API/.NETCORE] 대용량 데이터를 스트리밍 방식으로 전달받기
■ 대용량 데이터를 스트리밍 방식으로 전달받는 방법을 보여준다. [TestLibrary 프로젝트] ▶ ValueModel.cs
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namespace TestLibrary { /// <summary> /// 값 모델 /// </summary> public class ValueModel { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region ID - ID /// <summary> /// ID /// </summary> public int ID { get; set; } #endregion #region 데이터 - Data /// <summary> /// 데이터 /// </summary> public string Data { get; set; } #endregion #region 태그 - Tag /// <summary> /// 태그 /// </summary> public string Tag { get; set; } #endregion } } |
[TestClient 프로젝트] ▶ Program.cs
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using System; using System.Collections.Generic; using System.IO; using System.Net; using System.Net.Http; using System.Net.Http.Headers; using System.Text; using Newtonsoft.Json; using TestLibrary; namespace TestClient { /// <summary> /// 프로그램 /// </summary> class Program { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 프로그램 시작하기 - Main() /// <summary> /// 프로그램 시작하기 /// </summary> private static void Main() { Console.Title = "대용량 데이터를 스트리밍 방식으로 전달받기"; Console.WriteLine("PRESS ANY KEY TO CONTINUE..."); Console.ReadKey(true); //TestPOSTData1(); //TestPOSTData2(); TestGETData(); Console.WriteLine("PRESS ANY KEY TO EXIT..."); Console.ReadKey(true); } #endregion #region POST 데이터 구하기 1 - GetPOSTData1<TResultItem>(url, source) /// <summary> /// POST 데이터 구하기 1 /// </summary> /// <typeparam name="TResultItem">결과 항목 타입</typeparam> /// <param name="url">URL</param> /// <param name="source">소스 객체</param> /// <returns>결과 항목 타입 열거 가능형</returns> private static IEnumerable<TResultItem> GetPOSTData1<TResultItem>(string url, object source) { string sourceJSON = JsonConvert.SerializeObject(source); HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, url); requestMessage.Content = new StringContent(sourceJSON, Encoding.UTF8, "application/json"); requestMessage.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); HttpClient client = new HttpClient(); HttpResponseMessage responseMessage = client.SendAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead).Result; responseMessage.EnsureSuccessStatusCode(); using(Stream stream = responseMessage.Content.ReadAsStreamAsync().Result) { using(StreamReader streamReader = new StreamReader(stream)) { JsonSerializer serializer = new JsonSerializer(); using(JsonTextReader jsonTextReader = new JsonTextReader(streamReader)) { while(jsonTextReader.Read()) { if(jsonTextReader.TokenType != JsonToken.StartArray && jsonTextReader.TokenType != JsonToken.EndArray) { yield return serializer.Deserialize<TResultItem>(jsonTextReader); } } } } } } #endregion #region POST 데이터 테스트하기 1 - TestPOSTData1() /// <summary> /// POST 데이터 테스트하기 1 /// </summary> private static void TestPOSTData1() { string url = "http://localhost:5569/api/test/postdata"; ValueModel source = new ValueModel(); source.ID = -1; source.Data = "NODATA"; source.Tag = "POST3"; foreach(ValueModel value in GetPOSTData1<ValueModel>(url, source)) { Console.WriteLine("{0} {1} {2}", value.ID, value.Data.Length, value.Tag); } } #endregion #region POST 스트림 구하기 - POSTGetStream(serverURL, contentType, encoding, argument, timeOut) /// <summary> /// POST 스트림 구하기 /// </summary> /// <param name="serverURL">서버 URL</param> /// <param name="contentType">컨텐츠 타입</param> /// <param name="encoding">인코딩</param> /// <param name="argument">인자 문자열</param> /// <param name="timeOut">타임 아웃</param> /// <returns>POST 스트림</returns> private static Stream POSTGetStream(string serverURL, string contentType, Encoding encoding, string argument, int? timeOut = null) { byte[] argumentArray = encoding.GetBytes(argument); HttpWebRequest request = WebRequest.Create(serverURL) as HttpWebRequest; request.ProtocolVersion = HttpVersion.Version11; request.AllowAutoRedirect = true; request.AllowWriteStreamBuffering = true; request.Method = WebRequestMethods.Http.Post; request.ContentType = contentType; request.ContentLength = argumentArray.Length; if(timeOut.HasValue) { request.Timeout = timeOut.Value; } using(Stream requestStream = request.GetRequestStream()) { requestStream.Write(argumentArray, 0, argumentArray.Length); } HttpWebResponse response = request.GetResponse() as HttpWebResponse; Stream responseStream = response.GetResponseStream(); return responseStream; } #endregion #region POST 데이터 구하기 2 - GetPOSTData2<TResultItem>(url, source) /// <summary> /// POST 데이터 구하기 2 /// </summary> /// <typeparam name="TResultItem">결과 항목 타입</typeparam> /// <param name="url">URL</param> /// <param name="source">소스 객체</param> /// <returns>결과 항목 타입 열거 가능형</returns> private static IEnumerable<TResultItem> GetPOSTData2<TResultItem>(string url, object source) { string sourceJSON = JsonConvert.SerializeObject(source); using(Stream stream = POSTGetStream(url, "application/json; charset=utf-8", Encoding.UTF8, sourceJSON)) { using(StreamReader streamReader = new StreamReader(stream)) { using(JsonTextReader jsonTextReader = new JsonTextReader(streamReader)) { JsonSerializer serializer = new JsonSerializer(); while(jsonTextReader.Read()) { if(jsonTextReader.TokenType != JsonToken.StartArray && jsonTextReader.TokenType != JsonToken.EndArray) { yield return serializer.Deserialize<TResultItem>(jsonTextReader); } } } } } } #endregion #region POST 데이터 테스트하기 2 - TestPOSTData2() /// <summary> /// POST 데이터 테스트하기 2 /// </summary> private static void TestPOSTData2() { string url = "http://localhost:5569/api/test/postdata"; ValueModel source = new ValueModel(); source.ID = -1; source.Data = "NODATA"; source.Tag = "POST3"; foreach(ValueModel value in GetPOSTData2<ValueModel>(url, source)) { Console.WriteLine("{0} {1} {2}", value.ID, value.Data.Length, value.Tag); } } #endregion #region GET 데이터 구하기 - GetGETData<TResultItem>(url) /// <summary> /// GET 데이터 구하기 /// </summary> /// <typeparam name="TResultItem">결과 항목 타입</typeparam> /// <param name="url">URL</param> /// <returns>결과 항목 열거 가능형</returns> private static IEnumerable<TResultItem> GetGETData<TResultItem>(string url) { HttpClient client = new HttpClient(); MediaTypeWithQualityHeaderValue headerValue = new MediaTypeWithQualityHeaderValue("application/json"); client.DefaultRequestHeaders.Accept.Add(headerValue); using(Stream stream = client.GetStreamAsync(url).Result) { using(StreamReader streamReader = new StreamReader(stream)) { JsonSerializer serializer = new JsonSerializer(); using(JsonTextReader jsonTextReader = new JsonTextReader(streamReader)) { while(jsonTextReader.Read()) { if(jsonTextReader.TokenType != JsonToken.StartArray && jsonTextReader.TokenType != JsonToken.EndArray) { yield return serializer.Deserialize<TResultItem>(jsonTextReader); } } } } } } #endregion #region GET 데이터 테스트하기 - TestGETData() /// <summary> /// GET 데이터 테스트하기 /// </summary> private static void TestGETData() { string url = "http://localhost:5569/api/test/getdata?tag=GET"; foreach(ValueModel value in GetGETData<ValueModel>(url)) { Console.WriteLine("{0} {1} {2}", value.ID, value.Data.Length, value.Tag); } } #endregion } } |
[TestServer 프로젝트] ▶ Controllers/TestController.cs
[C#/WEB API] 대용량 데이터를 스트리밍 방식으로 전달받기
■ 대용량 데이터를 스트리밍 방식으로 전달받는 방법을 보여준다. [TestClient 프로젝트] ▶ Program.cs
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using System; using System.Collections.Generic; using System.IO; using System.Net.Http; using System.Net.Http.Headers; using Newtonsoft.Json; namespace TestClient { /// <summary> /// 프로그램 /// </summary> class Program { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 프로그램 시작하기 - Main() /// <summary> /// 프로그램 시작하기 /// </summary> private static void Main() { Console.Title = "대용량 데이터를 스트리밍 방식으로 전달받기"; Console.WriteLine("PRESS ANY KEY TO CONTINUE..."); Console.ReadKey(true); foreach(ValueModel value in GetValueEnumerable()) { Console.WriteLine("{0}\t{1}", value.SequenceID, value.Data); } Console.WriteLine("PRESS ANY KEY TO EXIT..."); Console.ReadKey(true); } #endregion #region 값 열거 가능형 구하기 - GetValueEnumerable() /// <summary> /// 값 열거 가능형 구하기 /// </summary> /// <returns>값 열거 가능형</returns> private static IEnumerable<ValueModel> GetValueEnumerable() { JsonSerializer serializer = new JsonSerializer(); HttpClient client = new HttpClient(); MediaTypeWithQualityHeaderValue headerValue = new MediaTypeWithQualityHeaderValue("application/json"); client.DefaultRequestHeaders.Accept.Add(headerValue); using(Stream stream = client.GetStreamAsync("http://localhost:63025/api/value").Result) { using(StreamReader streamReader = new StreamReader(stream)) { using(JsonTextReader jsonTextReader = new JsonTextReader(streamReader)) { while(jsonTextReader.Read()) { if(jsonTextReader.TokenType != JsonToken.StartArray && jsonTextReader.TokenType != JsonToken.EndArray) { yield return serializer.Deserialize<ValueModel>(jsonTextReader); } } } } } } #endregion } } |
[TestServer 프로젝트] ▶ Models/ValueModel.cs
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using System.Runtime.Serialization; namespace TestServer.Models { /// <summary> /// 값 모델 /// </summary> [DataContract] public class ValueModel { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 시퀀스 ID - Sequence /// <summary> /// 시퀀스 ID /// </summary> [DataMember] public int SequenceID { get; set; } #endregion #region 데이터 - Data /// <summary> /// 데이터 /// </summary> [DataMember] public string Data { get; set; } #endregion } } |
▶ Handlers/ValueHandler.cs
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using System.Net.Http; using System.Threading; using System.Threading.Tasks; namespace TestServer.Handlers { /// <summary> /// 값 핸들러 /// </summary> public class ValueHandler : DelegatingHandler { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 비동기 송신하기 - SendAsync(requestMessage, cancellationToken) /// <summary> /// 비동기 송신하기 /// </summary> /// <param name="requestMessage">HTTP 요청 메시지</param> /// <param name="cancellationToken">취소 토큰</param> /// <returns>HTTP 응답 메시지 태스크</returns> protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage requestMessage, CancellationToken cancellationToken) { Task<HttpResponseMessage> responseMessageTask = base.SendAsync(requestMessage, cancellationToken); responseMessageTask.Result.Headers.TransferEncodingChunked = true; return responseMessageTask; } #endregion } } |
▶
[C#/WEB API/.NETCORE] ControllerBase 클래스 : Response 속성을 사용해 파일 다운로드시 스트리밍 처리하기
■ ControllerBase 클래스의 Response 속성을 사용해 파일 다운로드시 스트리밍을 처리하는 방법을 보여준다. ▶ Controllers/TestController.cs
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using Microsoft.AspNetCore.Mvc; using Microsoft.Net.Http.Headers; using System.Collections.Generic; using System.IO; using System.Threading.Tasks; namespace TestProject.Controllers { /// <summary> /// 테스트 컨트롤러 /// </summary> [ApiController] [Route("api/[controller]")] public class TestController : Controller { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 값 리스트 구하기 - GetValueList() // GET api/test /// <summary> /// 값 리스트 구하기 /// </summary> /// <returns>값 리스트</returns> [HttpGet] public List<string> GetValueList() { return new List<string> { "value1", "value2" }; } #endregion #region 파일 다운로드 하기 - DownloadFile() // GET api/test/download /// <summary> /// 파일 다운로드 하기 /// </summary> /// <returns>태스크</returns> [HttpGet] [Route("download")] public async Task DownloadFile() { string filePath = @"d:\The Best of New Age Music Collection.mp4"; Response.Headers.Add(HeaderNames.ContentType , "application/octet-stream"); Response.Headers.Add(HeaderNames.ContentDisposition, $"attachment; filename=\"{Path.GetFileName(filePath)}\"" ); Response.StatusCode = 200; Stream sourceStream = new FileStream(filePath, FileMode.Open, FileAccess.Read); Stream targetStream = Response.Body; int bufferSize = 1024; byte[] bufferByteArray = new byte[bufferSize]; while(true) { int readCount = await sourceStream.ReadAsync(bufferByteArray, 0, bufferSize); if(readCount == 0) { break; } await targetStream.WriteAsync(bufferByteArray, 0, readCount); } await targetStream.FlushAsync(); } #endregion } } |
TestProject.zip
[C#/WEB API/.NETCORE] ConsumesAttribute/ProducesAttribute 클래스 : 요청/응답 컨텐트 타입 설정하기
■ ConsumesAttribute/ProducesAttribute 클래스를 사용해 요청/응답 컨텐트 타입을 설정하는 방법을 보여준다. ▶ 예제 코드 (C#)
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using Microsoft.AspNetCore.Mvc; namespace TestProject.Controllers { /// <summary> /// 테스트 컨트롤러 /// </summary> [ApiController] [Route("api/[controller]")] [Consumes("application/json")] [Produces("application/json")] public class TestController : Controller { ... } } |
[C#/WEB API/.NETCORE] Controller 클래스 : Json 메소드를 사용해 JSON 데이터 받기
■ Controller 클래스의 Json 메소드를 사용해 JSON 데이터를 받는 방법을 보여준다. [TestServer 프로젝트] ▶ Models/TestModel.cs
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using System.ComponentModel.DataAnnotations; namespace TestServer.Models { /// <summary> /// 테스트 모델 /// </summary> public class TestModel { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region ID - ID /// <summary> /// ID /// </summary> public int ID { get; set; } #endregion #region 성명 - Name /// <summary> /// 성명 /// </summary> [Required] [StringLength(50, MinimumLength = 3, ErrorMessage = "성명은 3자 이상 입력해 주시기 바랍니다.")] public string Name { get; set; } #endregion } } |
▶ Models/TestRepository.cs
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using System.Collections.Generic; namespace TestServer.Models { /// <summary> /// 테스트 저장소 /// </summary> public class TestRepository { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 테스트 딕셔너리 /// </summary> public static Dictionary<int, TestModel> TestDictionary; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Static #region 생성자 - TestRepository() /// <summary> /// 생성자 /// </summary> static TestRepository() { TestDictionary = new Dictionary<int, TestModel>(); TestDictionary.Add(1, new TestModel { ID = 1, Name = "홍길동" }); TestDictionary.Add(2, new TestModel { ID = 2, Name = "김철수" }); TestDictionary.Add(3, new TestModel { ID = 3, Name = "이용희" }); } #endregion } } |
▶ Controllers/TestController.cs
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using Microsoft.AspNetCore.Mvc; using System.Linq; using System.Net; using TestServer.Models; namespace TestServer.Controllers { /// <summary> /// 테스트 컨트롤러 /// </summary> [ApiController] [Route("api/[controller]")] public class TestController : Controller { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 리스트 구하기 - GetList() /// <summary> /// 리스트 구하기 /// </summary> /// <returns>리스트</returns> [HttpGet] public JsonResult GetList() { Response.StatusCode = (int)HttpStatusCode.OK; return Json(TestRepository.TestDictionary.Values.ToList()); } #endregion #region 항목 구하기 - GetItem(id) /// <summary> /// 항목 구하기 /// </summary> /// <returns>항목</returns> [HttpGet("{id:int}")] public JsonResult GetItem(int id) { if(TestRepository.TestDictionary.ContainsKey(id)) { Response.StatusCode = (int)HttpStatusCode.OK; return Json(TestRepository.TestDictionary[id]); } else { Response.StatusCode = (int)HttpStatusCode.BadRequest; return Json(null); } } #endregion #region 항목 추가하기 - AddItem(test) /// <summary> /// 항목 추가하기 /// </summary> /// <param name="test">테스트</param> /// <returns>처리 결과</returns> [HttpPost] public JsonResult Post([FromBody]TestModel test) { if(ModelState.IsValid) { if(TestRepository.TestDictionary.ContainsKey(test.ID)) { Response.StatusCode = (int)HttpStatusCode.BadRequest; return Json("FAILURE"); } TestRepository.TestDictionary.Add(test.ID, test); Response.StatusCode = (int)HttpStatusCode.Created; return Json("SUCCESS"); } Response.StatusCode = (int)HttpStatusCode.BadRequest; return Json("FAILURE"); } #endregion } } |
[C#/WEB API/.NETCORE] WEB API 애플리케이션 만들기
■ WEB API 애플리케이션을 만드는 방법을 보여준다. ▶ appsettings.json
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{ "Logging" : { "LogLevel" : { "Default" : "Information", "Microsoft" : "Warning", "Microsoft.Hosting.Lifetime" : "Information" } }, "AllowedHosts" : "*" } |
▶ launchSettings.json
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{ "$schema" : "http://json.schemastore.org/launchsettings.json", "iisSettings" : { "windowsAuthentication" : false, "anonymousAuthentication" : true, "iisExpress" : { "applicationUrl" : "http://localhost:5569", "sslPort" : 44320 } }, "profiles" : { "IIS Express" : { "commandName" : "IISExpress", "launchBrowser" : true, "launchUrl" : "api/test", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } }, "TestProject" : { "commandName" : "Project", "launchBrowser" : true, "launchUrl" : "api/test", "applicationUrl" : "https://localhost:5001;http://localhost:5000", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } } } } |
▶ TestController.cs
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using Microsoft.AspNetCore.Mvc; using System.Collections.Generic; namespace TestProject.Controllers { /// <summary> /// 테스트 컨트롤러 /// </summary> [ApiController] [Route("api/[controller]")] public class TestController : Controller { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 구하기 - Get() // GET api/test /// <summary> /// 구하기 /// </summary> /// <returns>문자열 리스트</returns> [HttpGet] public List<string> Get() { return new List<string> { "value1", "value2" }; } #endregion #region 구하기 - Get(id) // GET api/test/10 /// <summary> /// 구하기 /// </summary> /// <param name="id">ID</param> /// <returns>값</returns> [HttpGet("{id}")] public string Get(int id) { return "value"; } #endregion #region 추가하기 - Post(value) // POST api/test /// <summary> /// 추가하기 /// </summary> /// <param name="value">값</param> [HttpPost] public void Post([FromBody]string value) { } #endregion #region 수정하기 - Put(id, value) // PUT api/test/5 /// <summary> /// 수정하기 /// </summary> /// <param name="id"></param> /// <param name="value"></param> [HttpPut("{id}")] public void Put(int id, [FromBody]string value) { } #endregion #region 삭제하기 - Delete(id) // DELETE api/test/5 /// <summary> /// 삭제하기 /// </summary> /// <param name="id">ID</param> [HttpDelete("{id}")] public void Delete(int id) { } #endregion } } |
▶ Startup.cs
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using Microsoft.AspNetCore.Builder; using Microsoft.AspNetCore.Hosting; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Hosting; namespace TestProject { /// <summary> /// 시작 /// </summary> public class Startup { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 구성 - Configuration /// <summary> /// 구성 /// </summary> public IConfiguration Configuration { get; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - Startup(configuration) /// <summary> /// 생성자 /// </summary> /// <param name="configuration">구성</param> public Startup(IConfiguration configuration) { Configuration = configuration; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 서비스 컬렉션 구성하기 - ConfigureServices(services) /// <summary> /// 서비스 컬렉션 구성하기 /// </summary> /// <param name="services">서비스 컬렉션</param> public void ConfigureServices(IServiceCollection services) { services.AddControllers(); } #endregion #region 구성하기 - Configure(app, environment) /// <summary> /// 구성하기 /// </summary> /// <param name="app">애플리케이션 빌더</param> /// <param name="environment">웹 호스트 환경</param> public void Configure(IApplicationBuilder app, IWebHostEnvironment environment) { if(environment.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseHttpsRedirection(); app.UseRouting(); app.UseAuthorization(); app.UseEndpoints ( endpoints => { endpoints.MapControllers(); } ); } #endregion } } |
▶ Program.cs
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using Microsoft.AspNetCore.Hosting; using Microsoft.Extensions.Hosting; namespace TestProject { /// <summary> /// 프로그램 /// </summary> public class Program { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 프로그램 시작하기 - Main(argumentArray) /// <summary> /// 프로그램 시작하기 /// </summary> /// <param name="argumentArray">배열 인자</param> public static void Main(string[] argumentArray) { CreateHostBuilder(argumentArray).Build().Run(); } #endregion #region 호스트 빌더 생성하기 - CreateHostBuilder(argumentArray) /// <summary> /// 호스트 빌더 생성하기 /// </summary> /// <param name="argumentArray">인자 배열</param> /// <returns>호스트 빌더</returns> public static IHostBuilder CreateHostBuilder(string[] argumentArray) => Host.CreateDefaultBuilder(argumentArray) .ConfigureWebHostDefaults ( builder => { builder.UseStartup<Startup>(); } ); #endregion } } |
[C#/WEB API/.NETCORE] Microsoft.AspNet.WebApi.Client 누겟 설치하기
■ Microsoft.AspNet.WebApi.Client 누겟을 설치하는 방법을 보여준다. 1. Visual Studio를 실행한다. 2. [도구] / [NuGet 패키지 관리자] / [패키지 관리자 콘솔] 메뉴를 실행한다.
[C#/WEB API/.NETCORE] CRUD 구현 WEB API 애플리케이션 만들기
■ CRUD 구현 WEB API 애플리케이션을 만드는 방법을 보여준다. [TestServer 프로젝트] ▶ Models/ValueRepository.cs
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using System.Collections.Generic; namespace TestServer { /// <summary> /// 값 저장소 /// </summary> public static class ValueRepository { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 값 리스트 /// </summary> public static List<string> ValueList = new List<string>() { "Console", "WinForm", "WPF" }; #endregion } } |
▶ Models/TransferItem.cs
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namespace TestServer.Models { /// <summary> /// 전송 항목 /// </summary> public class TransferItem { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 상태 - Status /// <summary> /// 상태 /// </summary> public string Status { get; set; } #endregion #region 컨텐트 - Content /// <summary> /// 컨텐트 /// </summary> public string Content { get; set; } #endregion } } |
▶ Controllers/ValueController.cs
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using Microsoft.AspNetCore.Mvc; using Newtonsoft.Json; using TestServer.Models; namespace TestServer.Controllers { /// <summary> /// 값 컨트롤러 /// </summary> [ApiController] [Route("api/[controller]")] public class ValueController : ControllerBase { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 값 추가하기 - AddValue(value) /// <summary> /// 값 추가하기 /// </summary> /// <param name="value">값</param> /// <returns>전송 항목</returns> [HttpPost] public TransferItem AddValue([FromBody]string value) { TransferItem item = new TransferItem(); if(ValueRepository.ValueList.Contains(value)) { item.Status = "FAILURE"; item.Content = null; return item; } else { ValueRepository.ValueList.Add(value); item.Status = "OK"; item.Content = null; return item; } } #endregion #region 값 수정하기 - UpdateValue(index, value) /// <summary> /// 값 수정하기 /// </summary> /// <param name="index">인덱스</param> /// <param name="value">값</param> /// <returns>전송 항목</returns> [HttpPut("{index:int}")] public TransferItem UpdateValue(int index, [FromBody]string value) { TransferItem item = new TransferItem(); if(index < 0 || index >= ValueRepository.ValueList.Count) { item.Status = "FAILURE"; item.Content = null; return item; } ValueRepository.ValueList[index] = value; item.Status = "OK"; item.Content = null; return item; } #endregion #region 값 삭제하기 - DeleteValue(index) /// <summary> /// 값 삭제하기 /// </summary> /// <param name="index">인덱스</param> /// <returns>전송 항목</returns> [HttpDelete("{index:int}")] public TransferItem DeleteValue(int index) { TransferItem item = new TransferItem(); if(index < 0 || index >= ValueRepository.ValueList.Count) { item.Status = "FAILURE"; item.Content = null; return item; } ValueRepository.ValueList.RemoveAt(index); item.Status = "OK"; item.Content = null; return item; } #endregion #region 값 리스트 구하기 - GetValueList() /// <summary> /// 값 리스트 구하기 /// </summary> /// <returns>전송 항목</returns> [HttpGet] public TransferItem GetValueList() { TransferItem item = new TransferItem(); item.Status = "OK"; item.Content = JsonConvert.SerializeObject(ValueRepository.ValueList); return item; } #endregion #region 값 구하기 - GetValue(index) /// <summary> /// 값 구하기 /// </summary> /// <param name="index">인덱스</param> /// <returns>전송 항목</returns> [HttpGet("{index:int}")] public TransferItem GetValue(int index) { TransferItem item = new TransferItem(); if(index < 0 || index >= ValueRepository.ValueList.Count) { item.Status = "FAILURE"; item.Content = null; return item; } item.Status = "OK"; item.Content = JsonConvert.SerializeObject(ValueRepository.ValueList[index]); return item; } #endregion } } |
[TestClient 프로젝트]
[C#/WEB API/.NETCORE] 템플리트 프로젝트를 사용해 WEB API 애플리케이션 만들기
■ 템플리트 프로젝트를 사용해 WEB API 애플리케이션을 만드는 방법을 보여준다. ▶ appsettings.json
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{ "Logging" : { "LogLevel" : { "Default" : "Information", "Microsoft" : "Warning", "Microsoft.Hosting.Lifetime" : "Information" } }, "AllowedHosts" : "*" } |
▶ Properties/launchSettings.json
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{ "$schema" : "http://json.schemastore.org/launchsettings.json", "iisSettings" : { "windowsAuthentication" : false, "anonymousAuthentication" : true, "iisExpress" : { "applicationUrl" : "http://localhost:5569", "sslPort" : 44320 } }, "profiles" : { "IIS Express" : { "commandName" : "IISExpress", "launchBrowser" : true, "launchUrl" : "weatherforecast", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } }, "TestProject" : { "commandName" : "Project", "launchBrowser" : true, "launchUrl" : "weatherforecast", "applicationUrl" : "https://localhost:5001;http://localhost:5000", "environmentVariables" : { "ASPNETCORE_ENVIRONMENT" : "Development" } } } } |
▶ Models/WeatherForecastModel.cs
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using System; namespace TestProject.Models { /// <summary> /// 기상 예보 모델 /// </summary> public class WeatherForecastModel { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 일자 - Date /// <summary> /// 일자 /// </summary> public DateTime Date { get; set; } #endregion #region 온도 (섭씨) - TemperatureC /// <summary> /// 온도 (섭씨) /// </summary> public int TemperatureC { get; set; } #endregion #region 온도 (화씨) - TemperatureF /// <summary> /// 온도 (화씨) /// </summary> public int TemperatureF => 32 + (int)(TemperatureC / 0.5556); #endregion #region 요약 - Summary /// <summary> /// 요약 /// </summary> public string Summary { get; set; } #endregion } } |
▶ Controllers/WeatherForecastController.cs
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using Microsoft.AspNetCore.Mvc; using Microsoft.Extensions.Logging; using System; using System.Collections.Generic; using System.Linq; using TestProject.Models; namespace TestProject.Controllers { /// <summary> /// 기상 예보 컨트롤러 /// </summary> [ApiController] [Route("[controller]")] public class WeatherForecastController : ControllerBase { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 요약 배열 /// </summary> private static readonly string[] _symmaryArray = new[] { "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching" }; #endregion ////////////////////////////////////////////////////////////////////////////////////////// Instance //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 로그 기록기 /// </summary> private readonly ILogger<WeatherForecastController> logger; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - WeatherForecastController(logger) /// <summary> /// 생성자 /// </summary> /// <param name="logger">로그 기록기</param> public WeatherForecastController(ILogger<WeatherForecastController> logger) { this.logger = logger; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 열거 가능형 목록 구하기 - Get() /// <summary> /// 열거 가능형 목록 구하기 /// </summary> /// <returns>열거 가능형 목록</returns> [HttpGet] public IEnumerable<WeatherForecastModel> Get() { Random random = new Random(); return Enumerable.Range(1, 5).Select ( index => new WeatherForecastModel { Date = DateTime.Now.AddDays(index), TemperatureC = random.Next(-20, 55), Summary = _symmaryArray[random.Next(_symmaryArray.Length)] } ) .ToArray(); } #endregion } } |
[C#/WEB API] WEB API 애플리케이션 만들기
■ WEB API 애플리케이션을 만드는 방법을 보여준다. ▶ HelloController.cs
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using System.Collections.Generic; using System.Web.Http; namespace TestProject.Controllers { /// <summary> /// 헬로우 컨트롤러 /// </summary> public class HelloController : ApiController { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 리스트 구하기 - GetList() /// <summary> /// 리스트 구하기 /// </summary> /// <returns>리스트</returns> [HttpGet] public List<string> GetList() { List<string> list = new List<string>(); list.Add("테스트 문자열 1"); list.Add("테스트 문자열 2"); return list; } #endregion } } |
▶ DefaultController.cs
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using System.Collections.Generic; using System.Web.Http; namespace TestProject.Controllers { /// <summary> /// 디폴트 컨트롤러 /// </summary> public class DefaultController : ApiController { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 조회하기 - Get() [GET : api/Default] /// <summary> /// 조회하기 /// </summary> /// <returns>문자열 열거 가능형 목록</returns> public IEnumerable<string> Get() { return new string[] { "테스트 문자열 3", "테스트 문자열 4" }; } #endregion #region 조회하기 - Get(id) [GET : api/Default/5] /// <summary> /// 조회하기 /// </summary> /// <param name="id">ID</param> /// <returns>문자열</returns> public string Get(int id) { return "입력값 : " + id.ToString(); } #endregion #region 추가하기 - Post(value) [POST : api/Default] /// <summary> /// 추가하기 /// </summary> /// <param name="value">값</param> public void Post([FromBody]string value) { } #endregion #region 수정하기 - Put(id, value) [PUT : api/Default/5] /// <summary> /// 수정하기 /// </summary> /// <param name="id">ID</param> /// <param name="value">값</param> public void Put(int id, [FromBody]string value) { } #endregion #region 삭제하기 - Delete(id) [DELETE : api/Default/5] /// <summary> /// 삭제하기 /// </summary> /// <param name="id">ID</param> public void Delete(int id) { } #endregion } } |
TestProject.zip
[C#/WEB API] WEB API 2 셀프 호스팅 사용하기
■ WEB API 2 셀프 호스팅을 사용하는 방법을 보여준다. [TestServer 프로젝트 실행 결과] [TestClient 프로젝트 실행 결과] [TestCommon 프로젝트] ▶ Product.cs
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namespace TestCommon { /// <summary> /// 제품 /// </summary> public class Product { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region ID - ID /// <summary> /// ID /// </summary> public int ID { get; set; } #endregion #region 제품명 - Name /// <summary> /// 제품명 /// </summary> public string Name { get; set; } #endregion #region 카테고리 - Category /// <summary> /// 카테고리 /// </summary> public string Category { get; set; } #endregion #region 가격 - Price /// <summary> /// 가격 /// </summary> public decimal Price { get; set; } #endregion } } |