How to create CURL from HttpClient

Question

I have many API calls byHttpClient in c# and want to have a debug view of these requests. For example:

string requestBody = @"{""name"":""reza"",""referenceCode"":""10001000"",""price"":10000}";
string requestUri = "submit";
var httpRequestMessage = new HttpRequestMessage(HttpMethod.Post, requestUri);
httpRequestMessage.Content = new StringContent(requestBody, Encoding.UTF8, "application/json");
httpRequestMessage.Headers.Add("Authorization", $"Bearer {Guid.NewGuid().ToString()}");

using var httpClient = new HttpClient();
httpClient.BaseAddress = new Uri("http://localhost:8080/api/v1");
await client.PostAsync(requestUri, httpRequest.Content);

Now, how can generate CURL of this request? or are there any tools to generate CURL from HttpClient or HttpRequestMessage ?

curl -X POST 'http://localhost:8080/api/v1/submit' -H 'Authorization: Bearer 4797c126-3f8a-454a-aff1-96c0220dae61' -H 'Content-Type: application/json; charset=utf-8' -d '{""name"":""reza"",""referenceCode"":10001000,""price"":10000}'"

Answer 1

Hi,@Hamed Naeemaei, there's no build-in support for your requirement,you may try with a thrid-party tool,such as HttpClientToCurl Add this package to your project:

Call GenerateCurlInString,GenerateCurlInConsole,GenerateCurlInFile method based on your requirement

string requestBody = @"{""name"":""reza"",""referenceCode"":""10001000"",""price"":10000}";
string requestUri = "submit";
var httpRequestMessage = new HttpRequestMessage(HttpMethod.Post, requestUri);
httpRequestMessage.Content = new StringContent(requestBody, Encoding.UTF8, "application/json");
httpRequestMessage.Headers.Add("Authorization", $"Bearer {Guid.NewGuid().ToString()}");
using var httpClient = new HttpClient();
httpClient.BaseAddress = new Uri("http://localhost:8080/api/v1");

var curl = httpClient.GenerateCurlInString(httpRequestMessage);
//show the curl in console
httpClient.GenerateCurlInConsole(httpRequestMessage);

Result:

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Answer 2

Thanks, dear @Ruikai Feng - MSFT for suggesting the HttpClientToCurl extension.

exactly This extension will help you to see whatever is set in HttpClient in the form of a curl script.

And you can check if that is the correct data for sending to an external service or not. also if you have an error, you can check the script find your problem, and fix that. so easily. Also, it is a new way and fast way to create or update a collection of Postman, when you haven't got a Postman collection for your desired external service. It's easy to use. just you should install the package on your project from the below address and use sample codes for how to call and work with extensions. The Nuget package address is: Nuget Address

You have 3 ways to see script results:

1: Put it in a string variable:

string curlScript = httpClient.GenerateCurlInString(httpRequestMessage);

2: Show to the IDE console:

httpClient.GenerateCurlInConsole(httpRequestMessage);

3: Write in a file:

httpClient.GenerateCurlInFile(httpRequestMessage);

Also, the HttpClientToCurl extension has attractive configs that you can see examples in GitHub Address below:

HttpClientToCurlGenerator

I hope developers enjoy this extension in your projects.