How to get oauth2.0 token using asp.net mvc

Question

Hello, I want to implement oauth 2.0 token generation using c#. using post man i can able to generate the token, same thing i want call this from web using c# code. can any one help me. output:

Jaimin Shethiya · Answer

Hello Venkatesh Pettem, can you please check the below link https://www.c-sharpcorner.com/article/asp-net-mvc-oauth-2-0-rest-web-api-authorization-using-database-first-approach/ https://stackoverflow.com/questions/26755573/how-to-implement-oauth2-server-in-asp-net-mvc-5-and-web-api-2 Thanks

Farhan Ahmed · Answer

visit these link can help you out https://stackoverflow.com/questions/31376484/how-to-write-oauth2-web-api-client-in-asp-net-mvc https://www.red-gate.com/simple-talk/dotnet/net-development/oauth-2-0-with-github-in-asp-net-core/ https://docs.microsoft.com/en-us/aspnet/mvc/overview/older-versions/using-oauth-providers-with-mvc

Venkatesh Pettem · Answer

i have implemented from here only https://www.c-sharpcorner.com/article/asp-net-mvc-oauth-2-0-rest-web-api-authorization-using-database-first-approach/ when i give clientid and clientsecret from postman its generating the access token, so same scenario i want to call it from mvc c# code. i was trying below code to access api code(to get access token), its not working string clientId = "...-C179-4F9B-9F3F-EBB0A0116778" ; string clientSecret = "....-1086-4CE2-92ED-12B130F8B664" ; string credentials = String.Format( "{0}:{1}" , clientId, clientSecret); var client = new HttpClient { BaseAddress = new Uri( "http://localhost:65392/token" ) }; client.DefaultRequestHeaders.Accept.Clear(); client.DefaultRequestHeaders.Accept.Add( new MediaTypeWithQualityHeaderValue( "application/json" )); client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue( "Basic" , Convert.ToBase64String(Encoding.UTF8.GetBytes(credentials))); //Prepare Request Body List string , string >> requestData = new List string , string >>(); requestData.Add( new KeyValuePair string , string >( "grant_type" , "client_credentials" )); FormUrlEncodedContent requestBody = new FormUrlEncodedContent(requestData); //Request Token var request = await client.PostAsync( "http://localhost:65392/token" , requestBody); var response = await request.Content.ReadAsStringAsync();