Documentation in docs.

Benchmarking

Example:

ab -p gql.txt -kc 200 -T application/json -t 4 'http://localhost:8080/query'

With gql.txt:

{"operationName":null,"variables":{},"query":"{\n  todos {\n    id\n    content\n    user {\n      id\n      username\n    }\n  }\n}\n"}