Before start using the GraphQL service, we need to understand the basics with in below topic of GraphQL.
Queries and Mutations in GraphQL:
- Fields
- Arguments
- Aliases
- Fragments
- Operation name
- Variables
- Directives
- Mutations
- Inline Fragments
Schemas and Types :
- Type System
- Type Language
- Object Types and Fields
- Arguments
- The Query and Mutation Types
- Scalar Types
- Enumeration Types
- Lists and Non-Null
- Interfaces
- Union Types
- Input Types
To get in-depth detail for above points please refer https://graphql.github.io/learn/queries/