CODEWITHSUNDEEP
c#windowsuwpwindows-10windows-10-universal
vixez
vixez

Reputation: 857

HTTP Request with Basic Auth always returns 401

I'm trying to do a GET in an UWP (Windows 10) app. I've tried several ways but all always return 401.

In Postman it works fine, but I can' seem to get it to work in my app. What am I missing.

These are the methods I tried (all return 401):

Method 1:

        var request = WebRequest.Create("http://api.fos.be/person/login.json?login=200100593&password=pass");
        request.Headers["Authorization"] = "Basic MYAUTHTOKEN";
        var response = await request.GetResponseAsync();

Method 2:

        const string uri = "http://api.fos.be/person/login.json?login=200100593&password=pass";
        var httpClientHandler = new HttpClientHandler();
        httpClientHandler.Credentials = new System.Net.NetworkCredential("MYUSERNAME", "MYPASSWORD");
        using (var client = new HttpClient(httpClientHandler))
        {
            var result = await client.GetAsync(uri);
            Debug.WriteLine(result.Content);

        }

Method 3:

        var client = new RestClient("http://api.fos.be/person/login.json?login=200100593&password=pass");
        var request = new RestRequest(Method.GET);
        request.AddHeader("postman-token", "e2f84b21-05ed-2700-799e-295f5470c918");
        request.AddHeader("cache-control", "no-cache");
        request.AddHeader("authorization", "Basic MYAUTHTOKEN");
        IRestResponse response = await client.Execute(request);
        Debug.WriteLine(response.Content);

The third method is code generated straight from Postman, so why is it working there and not in my app?

Upvotes: 2

Views: 5071

Answers (2)

Aaron
Aaron

Reputation: 1411

I would try this first:

Check your "MYAUTHTOKEN", it is usually a combo of username:password and is base 64 encoded. So if your username was "user" and password was "pass" you would need to base64 encode "user:pass"

var request = WebRequest.Create("https://api.fos.be/person/login.json");
request.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Text.Encoding.UTF8.GetBytes("user:pass"));
var response = await request.GetResponseAsync();

Upvotes: 1

vixez
vixez

Reputation: 857

This thread helped me figure out the solution. I was using http:// but I had to make it https://. HTTPS with the code in that thread was the solution.

This is my final code:

    public static async void GetPerson()
    {
        //System.Diagnostics.Debug.WriteLine("NetworkConnectivityLevel.InternetAccess: " + NetworkConnectivityLevel.InternetAccess);
        //use this, for checking the network connectivity
        System.Diagnostics.Debug.WriteLine("GetIsNetworkAvailable: " + System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable());
        //var msg = new Windows.UI.Popups.MessageDialog("GetIsNetworkAvailable: " + System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable());
        //msg.ShowAsync();
        HttpClient httpClient = new HttpClient();
        // Assign the authentication headers
        httpClient.DefaultRequestHeaders.Authorization = CreateBasicHeader("MYUSERNAME", "MYPASS");
        System.Diagnostics.Debug.WriteLine("httpClient.DefaultRequestHeaders.Authorization: " + httpClient.DefaultRequestHeaders.Authorization);
        // Call out to the site
        HttpResponseMessage response = await httpClient.GetAsync("https://api.fos.be/person/login.json?login=usern&password=pass");
        System.Diagnostics.Debug.WriteLine("response: " + response);
        string responseAsString = await response.Content.ReadAsStringAsync();
        System.Diagnostics.Debug.WriteLine("response string:" + responseAsString);
    }
    public static AuthenticationHeaderValue CreateBasicHeader(string username, string password)
    {
        byte[] byteArray = System.Text.Encoding.UTF8.GetBytes(username + ":" + password);
        String logindata = (username + ":" + password);
        System.Diagnostics.Debug.WriteLine("AuthenticationHeaderValue: " + new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray)));
        return new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
    }

Upvotes: 1

Related Questions