RestSharp for testing Rest Api: Unable to authorize rest api with Oauth2. Not sure what needs to be done

Question

I have recently started to learn Rest Api automation testing using RestSharp. I was able to perform basic test for some rest api. However for the same test as part of new build developers have added authorization feature which is Oauth2. I am not sure how and where to implement it. I have attached very basic get test and some information which might be need for you to help me.

 using System; using System.Collections.Generic; using System.Text.RegularExpressions; using System.Windows.Input; using System.Windows.Forms; using System.Drawing; using Microsoft.VisualStudio.TestTools.UITesting; using Microsoft.VisualStudio.TestTools.UnitTesting; using Microsoft.VisualStudio.TestTools.UITest.Extension; using Keyboard = Microsoft.VisualStudio.TestTools.UITesting.Keyboard; using RestSharp; using System.Net; using RestSharp.Authenticators; namespace RestApiTest { [CodedUITest] public class TestApi { [TestMethod] public void TestGetApi() { //https://XYZtestsample.azurewebsites.net/ - previous link, without authorization it works fine when passed as Restclient argument var client = new RestClient("http://XYZarsuitewswagger-XYZarsuitestaging.azurewebsites.net/"); //--- This one has authentication header and does not work. //HttpBasicAuthenticator obj = new HttpBasicAuthenticator("XYZ.XYZ@in.XYZ.com", "XYZ@2019"); var request = new RestRequest("/XYZARSuiteAPI/v1/BUProfiles", Method.GET); // request.AddHeader("XYZ.XYZ@in.XYZ.com", "XYZ@2019"); request.RequestFormat = DataFormat.Json; ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls | SecurityProtocolType.Ssl3; //new OAuth2Authenticator("XYZ.XYZ@in.abb.com", "XYZ@2019"); IRestResponse response = client.Execute(request); var content = response.Content; } 

Below information I can see in Rest Api

Rest Api Authorization Info

Rest Api Request Info

UPDATE: I have authorize option available in the sample UI given to check the output when I authorized it I got below info

curl -X GET " http://XYZarsuitewswagger-XYZarsuitestaging.azurewebsites.net/XYZARSuiteAPI/v1/BUProfiles " -H "accept: application/json" -H "authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsIng1dCI6Ii1zeE1KTUxDSURXTVRQdlp5SjZ0eC1DRHh3MCIsImtpZCI6Ii1zeE1KTUxDSURXTVRQdlp5SjZ0eC1DRHh3MCJ9..rJ1VDhjE3NDMnW5pdv8N02OsKX3vKBO0bTxo2Lx_KZWq6eMi1DAvTXNd49tZhCJTr-PrCwbwsZsvf3fye_fNjL2VthlOA40UsvbPkou-F_b3B2kK3jzAdn8icbNEw5-3cxx8nAKiuDVZeRMTa3KVj0Kd384Eb6ZO5JBf4evoMCNMidrVAeKbxcP0B2tF8Aw1cgDWswNqghCUjb9foxxVIP-7MFeNFpuxGvLjtcQHIgY9VqMMpYBpE5DYLjqX0yXkGqBWnD4v-590wYtH0YPB-XOOtKZsy280PEHMock8jlLQdBNOp0w9SVw7XLfy5p0vp3ovHZqbb9IbSHQy-frV4g"

Thank you.

Answer 1

You have to set Authenticator property on RestClient object. Also it is important to add Accept header on the RestRequest object, not sure if it would be json in your case, but you can set here any valid content type.

Sample:

var client = new RestClient("<your_base_url>");
client.Authenticator = new OAuth2AuthorizationRequestHeaderAuthenticator("<your_access_token>", "Bearer");

var request = new RestRequest("<your_query>", Method.GET);
request.AddHeader("Accept", "application/json");

IRestResponse response = client.Execute(request);