examples/middleware/middleware-ext-mut

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 basics/middleware-ext-mut
cargo run
# Started http server: 127.0.0.1:8080

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