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Fasthttp Example

A simple HTTP server example using the fasthttp module from vlib/fasthttp.

Features

  • Handles GET and POST requests
  • Routes requests to different controllers based on HTTP method and path
  • Returns appropriate HTTP responses with status codes and content

Building

./v examples/fasthttp

Running

./examples/fasthttp/fasthttp

The server will listen on http://localhost:3000

Testing

Home endpoint

curl http://localhost:3000/

Get user by ID

curl http://localhost:3000/user/123

Create user

curl -X POST http://localhost:3000/user

404 response

curl http://localhost:3000/notfound

File Structure

  • main.c.v - Entry point and request router
  • controllers.v - Request handlers for different routes
  • v.mod - Module metadata

Architecture

The example demonstrates:

  1. Request Routing: The handle_request() function routes incoming HTTP requests based on method and path
  2. Response Handling: Controllers return HTTP responses with proper headers and status codes
  3. Content Type: All responses are returned as []u8 (byte arrays)

The fasthttp module handles:

  • Low-level socket management
  • Request parsing
  • Connection handling
  • Non-blocking I/O with epoll (Linux) or kqueue (macOS)