Getting a NOT.AUTHORIZED.ERROR when trying to call fedex api tracking

Question

I am trying to connect and pull tacking data from FedEx using there API.

I have been successful in connecting to and getting a response from https://apis-sandbox.fedex.com//oauth/token and getting the token.

When I then try to connect and get the tracking data I am getting "NOT.AUTHORIZED.ERROR" error response.

            string input = "{\r\n  \"trackingInfo\": [\r\n    {\r\n      \"trackingNumberInfo\": {\r\n        \"trackingNumber\": \"794843185271\"\r\n      }\r\n    }\r\n  ],\r\n  \"includeDetailedScans\": true\r\n}";

            var client = new RestClient("https://apis-sandbox.fedex.com");
            var request = new RestRequest("/oauth/token",Method.Post);

            request.AddHeader("cache-control", "no-cache");
            request.AddHeader("content-type", "application/x-www-form-urlencoded");

            request.AddParameter("application/x-www-form-urlencoded", "grant_type=client_credentials&scope=all&client_id=MyClientId&client_secret=MyClientSecert", ParameterType.RequestBody);


            RestResponse response = client.Execute(request);

            Console.WriteLine(response.Content.ToString());

            Console.WriteLine("                         ");
            Console.WriteLine("#########################");
            Console.WriteLine("                         ");
            

            rff = JsonSerializer.Deserialize<ResponceFromFedex>(response.Content);

            string token = rff.access_token;

            request = new RestRequest("/track/v1/trackingnumbers", Method.Post);

            request.AddHeader("Authorization", "bearer " + token);
            request.AddHeader("X-locale", "en_US");
            request.AddHeader("Content-Type", "application/json");

            request.AddParameter("application/json", input, ParameterType.RequestBody);

            response = client.Execute(request);

            Console.WriteLine(response.Content.ToString());
            Console.ReadLine();

I am very new to this API stuff and have no idea what I am doing, Any help would be greatly appreciated

I should add that I have been able to make the call using PostMan, I just don't know to to translate that to C#

I have tried tweaking setting and have not been able to get a proper response

Answer 1

To finaly get this to work I had to add a Default Query Parameter to the client

client.AddDefaultQueryParameter("access_token", token);

Here is a full look at the code

            string input = "{\r\n  \"trackingInfo\": [\r\n    {\r\n      \"trackingNumberInfo\": {\r\n        \"trackingNumber\": \"794843185271\"\r\n      }\r\n    }\r\n  ],\r\n  \"includeDetailedScans\": true\r\n}";

            var client = new RestClient("https://apis-sandbox.fedex.com");
            var request = new RestRequest("/oauth/token",Method.Post);

            request.AddHeader("cache-control", "no-cache");
            request.AddHeader("content-type", "application/x-www-form-urlencoded");
            
            request.AddParameter("application/x-www-form-urlencoded", "grant_type=client_credentials&scope=all&client_id=MyClientId&client_secret=MyClientSecert", ParameterType.RequestBody);

            
            RestResponse response = client.Execute(request);

            Console.WriteLine(response.Content.ToString());

            Console.WriteLine("                         ");
            Console.WriteLine("#########################");
            Console.WriteLine("                         ");
            

            rff = JsonSerializer.Deserialize<ResponceFromFedex>(response.Content);

            string token = rff.access_token;

            request = new RestRequest("/track/v1/trackingnumbers", Method.Post);

            //Line of code that was added.
            client.AddDefaultQueryParameter("access_token", token);

            request.AddHeader("Authorization", "bearer " + token);
            request.AddHeader("X-locale", "en_US");
            request.AddHeader("Content-Type", "application/json");

            request.AddParameter("application/json", input, ParameterType.RequestBody);

            response = client.Execute(request);

            Console.WriteLine(response.Content.ToString());
            Console.ReadLine();