Auth0 Failed With Status 400

[amit.barua]

I am trying to create users from ASP.NET Core 5 Web API project for Auth0 , was going through this official doc to make it work - Create User. Everything looks good through I am continuously getting the status code 400 and from the doc, the status code may indicate the followings:

400 - Invalid request body. The message will vary depending on the cause.
400 - Connection does not support user creation through the API. It must either be a database or passwordless connection.
400 - Cannot set username for connection without requires_username.
400 - Connection does not exist.
400 - Connection is disabled.

I’ve the connection name as NewDbConn-2024 and in the code snippet used it as follows according to the doc:

var content = new StringContent("{\"email\":\"sample1234@yahoo.com\",\"phone_number\":\"\",\"user_metadata\":{},\"blocked\":false,\"email_verified\":false,\"phone_verified\":false,\"app_metadata\":{},\"given_name\":\"sample12\",\"family_name\":\"sample12\",\"name\":\"sample12\",\"nickname\":\"sample12\",\"picture\":\"\",\"user_id\":\"\",\"connection\":\"NewDbConn-2024\",\"password\":\"\",\"verify_email\":false,\"username\":\"sample-2024\"}", null, "application/json");

Here’s the full code:

[HttpPost("CreateUserAuth0")]
public async Task<IActionResult> CreateUserAuth0()
{
    // 
    // Add authorization access token.
    string accessToken = _auth0Service.GetAccessToken();
    string authorization = $"Bearer {accessToken}";
   
    var client = new HttpClient();
    var request = new HttpRequestMessage(HttpMethod.Post, "https://company-domain.us.auth0.com/api/v2/users");
    
    request.Headers.Add("Accept", "application/json");
    request.Headers.Add("authorization", authorization);

    var content = new StringContent("{\"email\":\"sample1234@yahoo.com\",\"phone_number\":\"\",\"user_metadata\":{},\"blocked\":false,\"email_verified\":false,\"phone_verified\":false,\"app_metadata\":{},\"given_name\":\"sample12\",\"family_name\":\"sample12\",\"name\":\"sample12\",\"nickname\":\"sample12\",\"picture\":\"\",\"user_id\":\"\",\"connection\":\"NewDbConn-2024\",\"password\":\"\",\"verify_email\":false,\"username\":\"sample-2024\"}", null, "application/json");
    request.Content = content;
    
    var response = await client.SendAsync(request);
    response.EnsureSuccessStatusCode();
 
    return Ok(response.Content);
}

I am not sure if there’s anything that I am missing in the body or even the connection name, though the connection is created in the dashboard.

Tried something as follows, creating a separate object. But getting the same exception or status:

[HttpPost("CreateUserAuth0")]
public async Task<IActionResult> CreateUserAuth0()
{
  // 
  //Add authorization access token.
  string accessToken = _auth0Service.GetAccessToken();
  string authorization = $ "Bearer {accessToken}";

  var client = new HttpClient();
  var request = new HttpRequestMessage(HttpMethod.Post, "https://company-domain.us.auth0.com/api/v2/users");

  request.Headers.Add("Accept", "application/json");
  request.Headers.Add("authorization", authorization);

  var data = new CreateAuth0UserModel 
  {
    Email = "sample1234@yahoo.com",
      Blocked = false,
      EmailVerified = true,
      PhoneVerified = false,
      GivenName = "Sample12",
      FamilyName = "Sample12",
      Name = "Amit",
      Connection = "NewDbConn-2024",
      Password = "",
      VerifyEmail = false,
      Username = "Sample12"
  };

  var json = JsonConvert.SerializeObject(data);

  var content = new StringContent(json, UnicodeEncoding.UTF8, "application/json"); 
  
  var response = await client.SendAsync(request);
  response.EnsureSuccessStatusCode();

  return Ok(response.Content);
}

[amit.barua]

Here are the steps that I did to create a connection NewDbConn-2024, provided with screenshots:

Step 1: Created the connection NewDbConn-2024

Step 2:

Step 3:

[amit.barua]

Step 4:

Step 5:

Step 6: