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Python http.server + Wasmer

This example shows how to run a minimal Python standard-library HTTP server on Wasmer Edge.

Demo

https://<your-subdomain>.wasmer.app/ (deploy your own copy to get a live demo)

How it Works

The server logic lives in src/main.py:

  • CustomHandler subclasses http.server.SimpleHTTPRequestHandler and overrides do_GET() to return JSON: {"message": "Python app is running with Wasmer!"}.
  • HTTPServer((host, port), CustomHandler) starts the server; by default it binds to HOST=127.0.0.1 and PORT=8080, but both can be overridden via environment variables.
  • When run directly, the script prints the serving URL and blocks forever handling requests.

Because everything uses the Python standard library, no extra dependencies are required for Wasmer.

Running Locally

python src/main.py

Your server is available at http://127.0.0.1:8080/ (or whatever HOST/PORT you configure).

Deploying to Wasmer (Overview)

  1. Keep src/main.py as the entrypoint referenced in wasmer.toml or your deploy command.
  2. Deploy to Wasmer Edge.
  3. Visit https://<your-subdomain>.wasmer.app/ to confirm the JSON response.