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README.md

Middleware: Add/Retrieve Request-Local Data

This example showcases a middleware that adds and retrieves request-local data. See also the middleware guide.

Usage

cd middleware/request-extensions
cargo run

Look in src/add_msg.rs to see how it works.

Routes

  • GET /on - 200 OK with "hello from middleware" body and console log showing the request passed through the middleware
  • GET /off - 500 Internal Server Error with "no message found" body and console log showing the request passed through the middleware