The difference is that in the top loop, you’re creating 10 total HttpClient objects, using each once, and then disposing of each, while in the bottom, you’re creating just one HttpClient and reusing it. The point of the article is that it’s quite inefficient – and wholly unnecessary – to make a new HttpClient object … Read more
Ok after a bit of research i found the issue. The HttpClientHandler will get disposed after the first request. You need to instruct your system not to dispose the handler. Change your using to add false to the constructor. using (var client = new HttpClient(handler, false)) { }
For brevity I’ll assuming you’re calling an endpoint that you can’t change. How you should implement will heavily depend on whether the token is app or user based (one token for all users on a shared app instance or one token per user). If it’s one auth token for the entire app: Store it in … Read more
From httpclient 4.3 use HttpClientBuilder HttpClientBuilder.create().disableAutomaticRetries().build();
A simple example: // You need interface to keep your repository usage abstracted // from concrete implementation as this is the whole point of // repository pattern. public interface IUserRepository { Task<User> GetUserAsync(int userId); } public class UserRepository : IUserRepository { private static string baseUrl = “https://example.com/api/” public async Task<User> GetUserAsync(int userId) { var userJson … Read more
Since you are using .Result, this will end up causing a deadlock in your code. The reason this is working in a console application is because console applications don’t have contexts, but ASP.NET apps do (see Stephen Cleary’s Don’t Block on Async Code). You should make the Signin method in your controller async and await … Read more
Posting MultipartFormDataContent in C# is simple but may be confusing the first time. Here is the code that works for me when posting a .png .txt etc. // 2. Create the url string url = “https://myurl.com/api/…”; string filename = “myFile.png”; // In my case this is the JSON that will be returned from the post … Read more
I needed to do this myself and since I couldn’t find any answers online, here’s what I worked out. This uses a simple SOAP calculator service with an ‘Add’ method that takes two numbers and returns the sum. public async Task<int> AddNumbersAsync(Uri uri, int a, int b) { var soapString = this.ConstructSoapRequest(a, b); using (var … Read more
Post methods have post parameters, but get methods do not. Query parameters are embedded in the URL. The current version of HttpClient accepts a string in the constructor. If you wanted to add the key, value pair above, you could use: String url = “http://www.example.com/page?key=value”; GetMethod method = new GetMethod(url); A good starting tutorial can … Read more