Call WebApi[Answered] RSS

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  techviju

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  72 Posts

  Call WebApi

  Oct 10, 2019 07:21 AM|techviju|LINK

  How to call token based web API for authentication?

  Vijay Kumar.
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  Fei Han - MS...

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  6233 Posts

  Microsoft

  Re: Call WebApi

  Oct 10, 2019 08:15 AM|Fei Han - MSFT|LINK

  Hi Vijay,

  techviju

  How to call token based web API for authentication?

  Normally, you need to make request to get/acquire token first, then make request and pass the token that you got in request header to access resources.

  With Regards,

  Fei Han

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  techviju

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  208 Points

  72 Posts

  Re: Call WebApi

  Oct 10, 2019 11:47 AM|techviju|LINK

  Thank you for your replay..I get that.

  using System;
  using System.Collections.Generic;
  using System.Net.Http;
  using System.Net.Http.Formatting;
  
  
  namespace ConsoleApp1
  {
      class Program
      {
          static void Main(string[] args)
          {
              string baseAddress = "http://localhost:4312";
              Token token = new Token();
              using (var client = new HttpClient())
              {
                  var form = new Dictionary<string, string>
                 {
                     {"grant_type", "password"},
                     {"username", "admin"},
                     {"password", "admin"},
                 };
                  var tokenResponse = client.PostAsync(baseAddress + "/token", new FormUrlEncodedContent(form)).Result;
                  //var token = tokenResponse.Content.ReadAsStringAsync().Result;
                  token = tokenResponse.Content.ReadAsAsync<Token>(new[] { new JsonMediaTypeFormatter() }).Result;
                  if (string.IsNullOrEmpty(token.Error))
                  {
                      Console.WriteLine("Token issued is: {0}", token.AccessToken);
                      Console.WriteLine("Token Type: {0}", token.TokenType);
                  }
                  else
                  {
                      Console.WriteLine("Error : {0}", token.Error);
                  }
              }
  
              // Next Request 
              using (HttpClient httpClient = new HttpClient())
              {
                  httpClient.BaseAddress = new Uri(baseAddress);
                  //httpClient1.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("bearer", token.AccessToken);
                  httpClient.DefaultRequestHeaders.Add("Authorization", String.Format("Bearer {0}", token.AccessToken));
                  HttpResponseMessage response = httpClient.GetAsync("api/TestMethod").Result;
                  if (response.IsSuccessStatusCode)
                  {
                      System.Console.WriteLine("Success");
                  }
                  string message = response.Content.ReadAsStringAsync().Result;
                  System.Console.WriteLine("URL responese : " + message);
              }
  
              Console.Read();
          }
      }
  }
  

  Regards,

  Vijay Kumar

  Vijay Kumar.
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  techviju

  Member

  208 Points

  72 Posts

  Re: Call WebApi

  Oct 10, 2019 11:54 AM|techviju|LINK

  And Below is token Class

  class Token
      {
          [JsonProperty("access_token")]
          public string AccessToken { get; set; }
          [JsonProperty("token_type")]
          public string TokenType { get; set; }
          [JsonProperty("expires_in")]
          public int ExpiresIn { get; set; }
          [JsonProperty("refresh_token")]
          public string RefreshToken { get; set; }
          [JsonProperty("error")]
          public string Error { get; set; }
      }

  Vijay Kumar.