How to convert node.js to C# code

Question

I have this code in node.js and I need to convert it to C# code This method I have to implement it in my project to be consume from other platform.

But it is coded in Node.js and I am using ASP.NET MVC and I do not have idea in node.js anymore

app.post('/webhook', (req, res) => {

    var response

    console.log(req.headers)
    console.log(req.body)

    const message = `v0:${req.headers['x-zm-request-timestamp']}:${JSON.stringify(req.body)}`

    const signature = `lj5423j54235423`

    if (req.headers['x-zm-signature'] === signature) {

        if (req.body.event === 'endpoint.url_validation') {
            
            response = {
                message: {
                    plainToken: req.body.payload.plainToken,
                    encryptedToken: 'retwertwertewr5432fgds'
                },
                status: 200
            }

            console.log(response.message)

            res.status(response.status)
            res.json(response.message)
        } 
    } 
})

My major problem here how to recieve req & res arguments in method and get data from header & body I try this but not works:

public ActionResult Hooksd(HttpRequest req, RestResponse res)
{
   ... 
}

Answer 1

in MVC you don't pass the request and response objects as parameters, they are properties:

[HttpPost]
public ActionResult Hooksd()
{
   var req = Request;
   var res = Response;
   var signature = "lj5423j54235423";

   // convert body to dynamic object
   req.InputStream.Seek(0, System.IO.SeekOrigin.Begin);
   var json = new StreamReader(req.InputStream).ReadToEnd();
   dynamic body = Newtonsoft.Json.JsonConvert.DeserializeObject(json);

   req.Headers["x-zm-request-timestamp"] == signature)
   {
        return Json(new {
            message = new {
                plainToken =  body.payload.plainToken,
                encryptedToken = "retwertwertewr5432fgds"
            }
        });
   }
           
   ... 
}

as C# is a typed language, you either have to define a class definition for the posted json, or use a dynamics json library