Trying to make a post request

Question

I am trying to register a user in here

https://reqres.in/api/register

USING https://reqres.in/

    public async Task RegisterAsync(string _userName, string _paaWoed) {
            var data = new { email = _userName, password = _paaWoed };
            var json = JsonSerializer.Serialize(data);
            var content = new StringContent(json, Encoding.UTF8, "application/json");
            var response = await client.PostAsync("https://reqres.in/api/register", content);

            if (response.IsSuccessStatusCode) {
                var responseString = await response.Content.ReadAsStringAsync();
                Debug.WriteLine(responseString);
            } else {
                var errorResponse = await response.Content.ReadAsStringAsync();
                Debug.WriteLine($"Error: {response.StatusCode}, {errorResponse}");
            }
        }
    }

THROWS EROR 400

Answer 1

Hello,

Your code you provided in client side is correct. This is a server-side related issue.

"error": "Note: Only defined users succeed registration"

You got this error because it was thrown by the server side. You can set null as the parameter in the post request. It will throw another error: Missing email or username.

var response = await client.PostAsync("https://reqres.in/api/register", null);

It means that the request was sent successfully, but the server side return an error. When you send a request, you should follow the rules of the server side. I'm not sure about the logic on your server side. You could check the log and modify the code on server side.

Best Regards,

Wenyan Zhang

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