Get OAuth 2.0 access token of Paypal using HttpClient in c#
Here called paypal Rest API using System.Net.Http.HttpClient for OAuth 2.0 access token try { // ClientId of your Paypal app API string API ClientId = " ASCxaD7FzuvGbX-xxxxxxxx.....xxxxxxxxxxx-6RZDgwLuOyrCsy3 " ; // secret key of you Paypal app API string API Secret = " ENldyFXuW46R7Wv0 xxxxxxxx.....xxxxxxxxxxx ee8pyH8 " ; using ( var client = new System.Net.Http. HttpClient ()) { var byteArray = Encoding .UTF8.GetBytes( API ClientId + ":" + API Secret ); client.DefaultRequestHeaders.Authorization = new Headers. AuthenticationHeaderValue ( "Basic" , Conv...