How to consume a Web API service from a console application

If you do not have an example web service url available here, you can refer to this post to create one for yourself: https://www.technical-recipes.com/2018/getting-started-with-creating-asp-net-web-api-services/ In that example the GET command returns an array of two strings. Create a new console application: For this example we need access to HttpContent.ReadAsAsync. You may have to install this via NuGet. To do this open the Package Manager Console and select: [code language="xml"] PM> install-package Microsoft.AspNet.WebApi.Client [/code] The following code gives the example GET command implementation whereby the console app talks to the example web service to obtain the required items: [code language="csharp"] using System; using System.Collections.Generic; using System.Linq; using System.Net.Http; using System.Net.Http.Headers; using System.Threading.Tasks; namespace ConsumeWebApi { internal static class Program { private static readonly HttpClient Client = new HttpClient(); private static void Main() { RunAsync().GetAwaiter().GetResult(); } private static async Task<IEnumerable<string>> GetItems(string path) { var response = await Client.GetAsync(path); if (!response.IsSuccessStatusCode) return null; return await response.Content.ReadAsAsync<List<string>>(); } private static async Task RunAsync() { // Update your local service port no. / service APIs etc in the following line Client.BaseAddress = new Uri("http://localhost:57579/api/values/"); Client.DefaultRequestHeaders.Accept.Clear(); Client.DefaultRequestHeaders.Accept.Add( new MediaTypeWithQualityHeaderValue("application/json")); try { var items = await GetItems("http://localhost:57579/api/values/"); Console.WriteLine("Items read using the web api GET"); Console.WriteLine(string.Join(string.Empty, items.Aggregate((current, next) => current + ", " + next))); } catch (Exception e) { Console.WriteLine(e.Message); } Console.ReadLine(); } } } [/code] Giving the following console output:

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