I'm trying to call Paypal api from my code. I set up the sandbox account and it works when I use curl but my code isn't working the same way, returning 401 Unauthorized instead.
Here's the curl command as documented by Paypal
curl https://api.sandbox.paypal.com/v1/oauth2/token -H "Accept: application/json" -H "Accept-Language: en_US" -u "A****:E****" -d "grant_type=client_credentials"
UPDATE: Apparently the .Credentials doesn't do the trick, instead setting Authorization header manually works (see code)
Here's the code (trimmed to its essence):
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("https://api.sandbox.paypal.com/v1/oauth2/token");
request.Method = "POST";
request.Accept = "application/json";
request.Headers.Add("Accept-Language:en_US")
// this doesn't work:
**request.Credentials = new NetworkCredential("A****", "E****");**
// DO THIS INSTEAD
**string authInfo = Convert.ToBase64String(System.Text.Encoding.Default.GetBytes("A****:E****"));**
**request.Headers["Authorization"] = "Basic " + authInfo;**
using (StreamWriter swt = new StreamWriter(request.GetRequestStream()))
{
swt.Write("grant_type=client_credentials");
}
request.BeginGetResponse((r) =>
{
try
{
HttpWebResponse response = request.EndGetResponse(r) as HttpWebResponse; // Exception here
....
} catch (Exception x) { .... } // log the exception - 401 Unauthorized
}, null);
This is the request from code captured by Fiddler (raw), there are no authorization parameters for some reason:
POST https://api.sandbox.paypal.com/v1/oauth2/token HTTP/1.1
Accept: application/json
Accept-Language: en_US
Host: api.sandbox.paypal.com
Content-Length: 29
Expect: 100-continue
Connection: Keep-Alive
grant_type=client_credentials
