Intro
This time, I will try sending data from a console application.
An ASP.NET Core applicaion for receiving the data
To receive the sent data, I created an ASP.NET Core.
[ASP.NET Core] HomeController.cs
usingMicrosoft.AspNetCore.Mvc;namespaceSseSample.Controllers;publicrecordSampleValue(intId,stringName);publicclassWebApiController:Controller{privatereadonlyILogger<WebApiController>logger;publicWebApiController(ILogger<WebApiController>logger){this.logger=logger;}[HttpGet][Route("/api/get")]publicstringGetWithQuery([FromQuery]intid,stringname){return$"Get Query ID:{id} Name:{name}";}[HttpPost][Route("/api/post/query/url-encoded-content")]publicstringPostWithUrlEncodedContent([FromQuery]intid,stringname){return$"PostWithUrlEncodedContent ID:{id} Name:{name}";}[HttpPost][Route("/api/post/body")]publicstringPostWithBody([FromBody]SampleValuevalue){return$"PostWithBody ID:{value.Id} Name:{value.Name}";}[HttpPost][Route("/api/post/form")]publicstringPostWithForm([FromForm]SampleValuevalue){return$"PostWithForm ID:{value.Id} Name:{value.Name}";}[HttpPost][Route("/api/post/form/file")]publicstringPostWithFileInForm([FromForm]IFormFile?file){return$"PostWithFileInForm Name:{file?.Name} FileName:{file?.FileName} Len:{file?.Length}";}}Sending data
GET and POST with URL paramters
I can use "FormUrlEncodedContent" to add URL paramters.
[Console] Program.cs
usingSystem.Text;usingSystem.Text.Json;usingWebAccessSample;conststringBaseUrl="http://localhost:5056";usingvarhttpClient=newHttpClient();varurlParams=newDictionary<string,string>{{"id","3"},{"name","hello"}};varencodedParams=newFormUrlEncodedContent(urlParams);varparamText=awaitencodedParams.ReadAsStringAsync();Console.WriteLine(paramText);vargetResponse=awaithttpClient.GetAsync($"{BaseUrl}/api/get?{paramText}");Console.WriteLine($"/api/get{awaitgetResponse.Content.ReadAsStringAsync()}");varpostWithUrlEncodedContentResponse=awaithttpClient.PostAsync($"{BaseUrl}/api/post/query/url-encoded-content?{paramText}",newStringContent("",Encoding.UTF8,@"text/plain"));Console.WriteLine($"/api/post/query/url-encoded-content{awaitpostWithUrlEncodedContentResponse.Content.ReadAsStringAsync()}");Results
id=3&name=hello/api/get Get Query ID: 3 Name: hello/api/post/query/url-encoded-content PostWithUrlEncodedContent ID: 3 Name: helloI also can post like below.
But I have to remove "[FromQuery]" from "PostWithUrlEncodedContent" of the ASP.NET Core application to receive "id" value.
[Console] Program.cs
...varpostWithUrlEncodedContentResponse=awaithttpClient.PostAsync($"{BaseUrl}/api/post/query/url-encoded-content?{paramText}",encodedParams);Console.WriteLine($"/api/post/query/url-encoded-content{awaitpostWithUrlEncodedContentResponse.Content.ReadAsStringAsync()}");POST with HTTP request body
SampleValue.cs
namespaceWebAccessSample;publicrecordSampleValue(intId,stringName);[Console] Program.cs
...varsampleValue=newSampleValue(Id:4,Name:"world");varsampleValueJson=JsonSerializer.Serialize(sampleValue);varstringData=newStringContent(sampleValueJson,Encoding.UTF8,@"application/json");varpostWithBodyResponse=awaithttpClient.PostAsync($"{BaseUrl}/api/post/body",stringData);Console.WriteLine($"/api/post/body{awaitpostWithBodyResponse.Content.ReadAsStringAsync()}");Results
.../api/post/body PostWithBody ID: 4 Name: worldPOST with Form data
I can send JSON values as HTTP request body and receive deserialized value in the ASP.NET Core application, but I can't do the same with "MultipartFormDataContent".
[Console] Program.cs
...varmultiFormData=newMultipartFormDataContent();// I couldn't do thismultiFormData.Add(stringData,"value");varpostWithFormResponse=awaithttpClient.PostAsync($"{BaseUrl}/api/post/form",multiFormData);Console.WriteLine($"/api/post/form{awaitpostWithFormResponse.Content.ReadAsStringAsync()}");Results
.../api/post/form PostWithForm ID: 0 Name:I should add values like below.
varmultiFormData=newMultipartFormDataContent();// OKmultiFormData.Add(newStringContent(sampleValue.Id.ToString()),"value.Id");multiFormData.Add(newStringContent(sampleValue.Name),"value.Name");varpostWithFormResponse=awaithttpClient.PostAsync($"{BaseUrl}/api/post/form",multiFormData);Console.WriteLine($"/api/post/form{awaitpostWithFormResponse.Content.ReadAsStringAsync()}");Results
.../api/post/form PostWithForm ID: 4 Name: worldI also receive the JSON value as string.
After receiving it, I can manually deserialize it.
[Console] Program.cs
...varmultiFormData=newMultipartFormDataContent();// OKmultiFormData.Add(stringData,"value");varpostWithFormResponse=awaithttpClient.PostAsync($"{BaseUrl}/api/post/form",multiFormData);Console.WriteLine($"/api/post/form{awaitpostWithFormResponse.Content.ReadAsStringAsync()}");[ASP.NET Core] HomeController.cs
...[HttpPost][Route("/api/post/form")]publicstringPostWithForm([FromForm]stringvalue){varv=JsonSerializer.Deserialize<SampleValue>(value);return$"PostWithForm ID:{v?.Id} Name:{v?.Name}";}...Results
.../api/post/form PostWithForm ID: 4 Name: worldPOST with file data
[Console] Program.cs
...varmultiFormFileData=newMultipartFormDataContent();byte[]fileData;using(varmemoryStream=newMemoryStream()){using(varfileStream=newFileStream(@"./pics.png",FileMode.Open)){awaitfileStream.CopyToAsync(memoryStream);}fileData=memoryStream.ToArray();}// To send file data, I have to add "fileName"multiFormFileData.Add(newByteArrayContent(fileData),"file","pics.png");varpostWithFormFileResponse=awaithttpClient.PostAsync($"{BaseUrl}/api/post/form/file",multiFormFileData);Console.WriteLine($"/api/post/form/file{awaitpostWithFormFileResponse.Content.ReadAsStringAsync()}");Results
.../api/post/form/file PostWithFileInForm Name: file FileName: pics.png Len: 3872061Resources
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