WireMock.Net-wiremock/examples/WireMock.Net.ConsoleApp.UsingNuGet/Program.cs

// Copyright © WireMock.Net

using System.Net.Http.Headers;
using System.Text;
using WireMock.Matchers;
using WireMock.RequestBuilders;
using WireMock.ResponseBuilders;
using WireMock.Server;

Directory.SetCurrentDirectory(Path.GetTempPath());

using var server = WireMockServer.Start();

var textPlainContent = "This is some plain text";
var textPlainContentType = "text/plain";
var textPlainContentTypeMatcher = new ContentTypeMatcher(textPlainContentType);
var textPlainContentMatcher = new ExactMatcher(textPlainContent);
var textPlainMatcher = new MimePartMatcher(MatchBehaviour.AcceptOnMatch, textPlainContentTypeMatcher, null, null, textPlainContentMatcher);

var textJson = "{ \"Key\" : \"Value\" }";
var textJsonContentType = "text/json";
var textJsonContentTypeMatcher = new ContentTypeMatcher(textJsonContentType);
var textJsonContentMatcher = new JsonMatcher(new { Key = "Value" }, true);
var jsonMatcher = new MimePartMatcher(MatchBehaviour.AcceptOnMatch, textJsonContentTypeMatcher, null, null, textJsonContentMatcher);

var imagePngBytes = Convert.FromBase64String("iVBORw0KGgoAAAANSUhEUgAAAAIAAAACAgMAAAAP2OW3AAAADFBMVEX/tID/vpH/pWX/sHidUyjlAAAADElEQVR4XmMQYNgAAADkAMHebX3mAAAAAElFTkSuQmCC");
var imagePngContentMatcher = new ExactObjectMatcher(imagePngBytes);
var imagePngMatcher = new MimePartMatcher(MatchBehaviour.AcceptOnMatch, null, null, null, imagePngContentMatcher);

var matchers = new IMatcher[]
{
    textPlainMatcher,
    jsonMatcher,
    imagePngMatcher
};

server
    .Given(Request.Create()
        .UsingPost()
        .WithPath("/multipart")
        .WithMultiPart(matchers)
    )
    .RespondWith(Response.Create()
        .WithBodyAsJson(new
        {
            Method = "{{request.Method}}",
            BodyAsMimeMessage = "{{request.BodyAsMimeMessage.TextBody}}"
        })
        .WithTransformer()
    );

server
    .Given(Request.Create()
        .UsingPost()
        .WithPath("/multipart2")
        .WithMultiPart(matchers)
    )
    .RespondWith(Response.Create()
        .WithBody(request =>
        {
            if (request.BodyAsMimeMessage == null)
            {
                throw new InvalidProgramException("Not expected");
            }
            return "OK";
        })
        .WithTransformer()
    );

var formDataContent = new MultipartFormDataContent
{
    { new StringContent(textPlainContent, Encoding.UTF8, textPlainContentType), "text" },
    { new StringContent(textJson, Encoding.UTF8, textJsonContentType), "json" }
};

var fileContent = new ByteArrayContent(imagePngBytes);
fileContent.Headers.ContentType = new MediaTypeHeaderValue("image/png");
formDataContent.Add(fileContent, "somefile", "image.png");

var client = server.CreateClient();

var response = await client.PostAsync("/multipart", formDataContent);
var content = await response.Content.ReadAsStringAsync();
Console.WriteLine(content);

var response2 = await client.PostAsync("/multipart2", formDataContent);
var content2 = await response2.Content.ReadAsStringAsync();
Console.WriteLine(content2);