在 c# 中调用 web api

Question

I am trying to call my webapi locally. This is my postman url and it work great. http://localhost:8080/api/V1/Students

When calling from MVC application I get an exception 404 not found.

This is my student controller

            var url = "/Students";
            string test = ApiHelper.ApiClient.BaseAddress + url;
            using (HttpResponseMessage response = await ApiHelper.ApiClient.GetAsync(url))
            {
                if (response.IsSuccessStatusCode)
                {
                    listStudent = await response.Content.ReadAsAsync<List<StudentModel>>();
                }
                else
                {
                    throw new Exception(response.ReasonPhrase);
                }
            }

Notice: test actually return the url " http://localhost:8080/api/V1/Students ". Witch his good.

And this is my ApiHelper code.

    public class ApiHelper
    {
        public static HttpClient ApiClient { get; set; }

        public static void  InitializeClient()
        {
            string ApiBaseUrl = ConfigurationManager.AppSettings["ApiUrl"];
            ApiClient = new HttpClient();
            ApiClient.BaseAddress = new Uri(ApiBaseUrl);
            ApiClient.DefaultRequestHeaders.Accept.Clear();
            ApiClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
        }
    }

When I debug it I found that on my response the Request URI

RequestUri  {http://localhost:8080/Student}

This is where my api location is called

  <appSettings>
    <add key="ApiUrl" value="http://localhost:8080/api/V1" />
  </appSettings>

What I am doing wrong in trying to call the local api?

Answer 1

api/v1 is a route prefix. Decorate your BaseAddress controller with this route prefix and tray again. Like so:

[RoutePrefix("api/V1")]  
    public class ProductController : Controller  
    {