• One endpoint `/graphql`
  • Query
  • Mutation
  • Subscription
• Return type
  • Enums are useful

Aliasing a query:

query {
  alias : totalPets(status:AVAILABLE)
}

Neat link

• https://developer.github.com/v4/explorer/

Handling multiple behaviours for a single endpoint

• array of options, filters… handle on the server

Dont forget you can put two queries in one:

query{
  query1{...}
  query2{...}
}

graphql scalar type

• Int
• Float
• String
• Boolean
• ID

Nullable vs non nullable

name: String!

description: String

Nullable list of nullable values

photos: [Photo]

non-Nullable list of nullable values

photos: [Photo]!

non-Nullable list of non-nullable values

photos: [Photo!]!