RestSharp AddFile using key and image in C#

Question

I´m trying to consume a Rest service that receives an image with a key. I am using RestSharp v.106.10.1 in Visual Studio 2017. I have the following code, which when executing returns a message with the server response that says the package has arrived without the image. Can you help me on what am I doing wrong?.

This is my code

var client = new RestClient("http://localhost:3030/api/upload-image");
    client.Timeout = -1;
    var request = new RestRequest(Method.POST);
    request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
    request.AddFile("images", "/C:/Users/Desktop/AppTestWM/ServidorFTP/450_1000.jpg");
    IRestResponse response = client.Execute(request);
    Console.WriteLine(response.Content);

The way to send from postman is this. the header contentType: application/x-www-form-urlencoded and the body in form-data added a key “image” and the image file.

This is header format

enter image description here

This is body format

enter image description here

MORE IINFORMATION

This is postman console good answer

POST http://localhost:3000/imagenSoliTag/upload-image

• ▶Network

▶Request Headers

User-Agent: PostmanRuntime/7.24.1

Accept: /

Cache-Control: no-cache

Postman-Token: 44761995-f969-417d-9216-c98d2ee38b35

Host: localhost:3000

Accept-Encoding: gzip, deflate, br

Connection: keep-alive

Content-Type: multipart/form-data; boundary=------------------------- -505415277809498326289672

Content-Length: 20233

• ▶Request Body

▶image: {…}

_events: {}

_eventsCount: 3

▶_readableState: {…}

autoClose: true

bytesRead: 20022

closed: true

domain: null

fd: null

flags: "r"

mode: 438

path: "C:\Users\Desktop\AppTestWM\ServidorFTP\450_1000.jpg"

readable: false

▶Response Headers

X-Powered-By: Express

Content-Type: application/json; charset=utf-8

Content-Length: 71

ETag: W/"47-DTIxeI6y0HsQCMVrZcYol72rDDs"

Date: Sun, 19 Apr 2020 23:42:08 GMT

Connection: keep-alive

• ▶Response Body

response: "¡Imagen guardada con éxito!"

imagePath: "450_1000.jpg"

This is postman console bad answer when make a query without image

POST http://localhost:3000/imagenSoliTag/upload-image

• ▶Network

▶Request Headers

User-Agent: PostmanRuntime/7.24.1

Accept: /

Cache-Control: no-cache

Postman-Token: 9903417e-e3f0-467e-a185-046a1043ba45

Host: localhost:3000

Accept-Encoding: gzip, deflate, br

Connection: keep-alive

Content-Length: 0

• Request Body

▶Response Headers

X-Powered-By: Express

Content-Type: application/json; charset=utf-8

Content-Length: 50

ETag: W/"32-Z/sIWz99etyVziu3PXRpXUZOG6c"

Date: Sun, 19 Apr 2020 23:44:07 GMT

Connection: keep-alive

• ▶Response Body

statusCode: 400

message: "¡Elija una imagen!"

This is Visual studio debug in Request

enter image description here

and in Response debug is this

enter image description here

Answer 1

The answer is in your question.

See the Content-Type sent by postman:

And this is the request you are posting with RestSharp (gathered using Fiddler 4)

POST /api/upload-image HTTP/1.1
Accept: application/json, text/json, text/x-json, text/javascript, application/xml, text/xml
User-Agent: RestSharp/106.0.0.0
Content-Type: application/x-www-form-urlencoded; boundary=-----------------------------28947758029299
Host: oguzozgul.com.tr
Content-Length: 19006
Accept-Encoding: gzip, deflate
Connection: Keep-Alive

It is actually trying to send the form using boundaries, but you are forcing it to send the Content-Type header as application/x-www-form-urlencoded

Set the header Content-Type as multipart/form-data, or (works with the latest version), let RestSharp set the Content-Type automatically by not forcing it to use a specific (and incorrect) one: (The statement setting the Content-Type header is removed:)

var client = new RestClient("http://localhost:3030/api/upload-image");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "multipart/form-data");
request.AddFile("images", "/C:/Users/Desktop/AppTestWM/ServidorFTP/450_1000.jpg");
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);