How to Make an HTTP Request with C#

C# uses HttpClient for HTTP requests. It's designed for reuse—create one instance and reuse it across requests.

GET request example

Making a GET request to fetch data with custom headers:

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("Accept", "application/json");
client.DefaultRequestHeaders.Add("Authorization", "Bearer YOUR_TOKEN");
var response = await client.GetAsync("https://api.example.com/users");
var content = await response.Content.ReadAsStringAsync();

POST request example

Making a POST request to send JSON data:

using var client = new HttpClient();
var json = "{"name":"John","email":"john@example.com"}";
var content = new StringContent(json, Encoding.UTF8, "application/json");
var response = await client.PostAsync("https://api.example.com/users", content);
var result = await response.Content.ReadAsStringAsync();

Other libraries you can try

Python: Requests — simple and popular HTTP library, HTTPX — async-capable HTTP client
JavaScript: Axios — promise-based HTTP client, node-fetch — Fetch API for Node.js
Ruby: HTTParty — simple HTTP client, Faraday — flexible HTTP library, RestClient — lightweight REST client
Java: OkHttp — efficient HTTP client, Apache HttpClient — feature-rich library
C#: RestSharp — simple REST client, Flurl — fluent HTTP library
Go: resty — simple HTTP client, grequests — goroutine-based requests
PHP: Guzzle — popular PHP HTTP client, Symfony HttpClient — component-based HTTP client