cargo install mdbook
mdbook serve

cd ratings
PORT=7878 RUST_LOG=info cargo run

Vérifier qu'il marche:

curl localhost:7878/ratings/0
curl localhost:7878/ratings/0 -d '{"reviewer":"me","rating":3}'
curl localhost:7878/ratings/0

cargo install cargo-watch
cd reviews
RUST_LOG=warn RATINGS_URL=http://127.0.0.1:7878 cargo watch --ignore db.sqlite -x 'run'