Calling Api with header, username and password in C#

Question

I am trying to get data from this api codaBox I've tested it with swagger but when I am trying with c# I am getting a error code 401. I am using the right header, username and password.

I tested it with swagger with the same credentials and I've got data with it.

try
{
    var byteArray = Encoding.ASCII.GetBytes("Username:password");
    Client.DefaultRequestHeaders.Authorization =
        new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
    Client.BaseAddress = new Uri("https://myurl");

    Client.DefaultRequestHeaders.Add("X-Software-Company", "myToken");
    HttpResponseMessage response = await Client.GetAsync("");
    response.EnsureSuccessStatusCode();
    string responseBody = await response.Content.ReadAsStringAsync();
    // Above three lines can be replaced with new helper method below
    // string responseBody = await client.GetStringAsync(uri);

    Console.WriteLine(responseBody);
}
catch (HttpRequestException e)
{
    Console.WriteLine("\nException Caught!");
    Console.WriteLine("Message :{0} ", e.Message);
}

I would like to get 200 status code.

Have you tried setting the user agent? This usually causes some issues if you don't do that — Neijwiert, Jul 08 '19 at 09:11
Also inspecting a succesful login attempt in your browser using tools like wireshark/fiddler may help you getting your automated code to work. — Neijwiert, Jul 08 '19 at 09:12
You should at least read the response body for certain status codes before calling `EnsureSuccessStatusCode`. Most OAuth providers provide an error message in the response body. — Silvermind, Jul 08 '19 at 09:34
Did you try testing the API call in Postman? If you get it to work there, Postman can generate call for you. — Matt, Jul 08 '19 at 09:35
If you hardcoded your password for testing or something, make sure it is escaped properly. Example: `asdf\t` -> `asdf\\t` — Silvermind, Jul 08 '19 at 09:53

Pop Catalin · Answer 1 · 2019-07-08T09:26:26.667

-1

You need to replace "Username:password" with the actual user and password separated by : "{your actual username}:{your actual password}"

Also Web is UTF8 (Ascii works sometimes as it's a subset) but not always:

var byteArray = Encoding.UTF8.GetBytes("Username:password");

edited Jul 08 '19 at 09:26

answered Jul 08 '19 at 09:15

Pop Catalin

61,751
23
87
115

of course i did it i just didn't want share my password and username all over the internet -) – bob nkusi Jul 08 '19 at 09:21
@bobnkusi I see, then see my edit. Try changing to UTF8 – Pop Catalin Jul 08 '19 at 09:26
1

The example you have, is the correct way to use Basic authentication. I think you need to double check that everything sent is correct. Try using Fillder or some other tool. – Pop Catalin Jul 08 '19 at 09:36
1

Or you can use a logging handler to see the exact request. See example here: https://stackoverflow.com/questions/18924996/logging-request-response-messages-when-using-httpclient – Pop Catalin Jul 08 '19 at 09:37

Calling Api with header, username and password in C#

1 Answers1