Table of Contents
1 Nomenclature
- Document has many operations or fragments (executables) or type system information
- Operation types may be queries, mutations, and subscriptions
2 Parsing
- Whitespace and line terminations are as expected
- Tokens
- The "query" keyword and name may not be present for [{ field }]
3 Operations
- query: read-only fetch
- mutation: write + fetch
- subscription: response to source events
4 Selection Sets
{
id
firstName
lastName
}
- Can contain aliases
5 Fragments
query withFragments { user(id: 4) { friends(first: 10) { ...friendFields } mutualFriends(first: 10) { ...friendFields } } } fragment friendFields on User { id name profilePic(size: 50) }
6 Tools
6.1 GraphQL Playground
6.2 GraphQL Configuration
6.3 Mocking
npm install -g get-graphql-schema graphql-cli graphql-faker mkdir t && cd t # graphql init get-graphql-schema https://$HOST/graphql/ > schema.graphql graphql-faker schema.graphql open http://localhost:9002/editor