Shows how to set up custom routing guards.

• Routing different API versions using a header instead of path.

cd guards
cargo run --bin=guards

Requires the Accept-Version header to be present and set to 1 or 2.

Using HTTPie:

http :8080/api/hello Accept-Version:1

Using cURL:

curl 'localhost:8080/api/hello' -H 'accept-version: 1'