00-hello-world

Hello world

Clean and simple single-file example of main GraphQL concepts originally proposed and implemented by Leo Cavalcante.

Run local test server

php -S localhost:8080 graphql.php

Try query

curl --data '{"query": "query { echo(message: \"Hello World\") }" }' --header "Content-Type: application/json" http://localhost:8080

Try mutation

curl --data '{"query": "mutation { sum(x: 2, y: 2) }" }' --header "Content-Type: application/json" http://localhost:8080