Paypal REST api call works from cURL but not from C# code

Question

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 instea

Answer 1

I too suffered from a lack of example code and various issues with response errors and codes.

I am a big fan of RestClient as it helps a lot with integrations and the growing number of RESTful API calls.

I hope this small snippet of code using RestSharp helps someone: -

        if (ServicePointManager.SecurityProtocol != SecurityProtocolType.Tls12) ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12; // forced to modern day SSL protocols
        var client = new RestClient(payPalUrl) { Encoding = Encoding.UTF8 };
        var authRequest = new RestRequest("oauth2/token", Method.POST) {RequestFormat = DataFormat.Json};
        client.Authenticator = new HttpBasicAuthenticator(clientId, secret);
        authRequest.AddParameter("grant_type","client_credentials");
        var authResponse = client.Execute(authRequest);
        // You can now deserialise the response to get the token as per the answer from @ryuzaki 
        var payPalTokenModel = JsonConvert.DeserializeObject(authResponse.Content);