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Rules
Strict Id in Types

strict-id-in-types

✅ The "extends": "plugin:@graphql-eslint/schema-recommended" property in a configuration file enables this rule.

  • Category: Schema
  • Rule name: @graphql-eslint/strict-id-in-types
  • Requires GraphQL Schema: true ℹī¸
  • Requires GraphQL Operations: false ℹī¸

Requires output types to have one unique identifier unless they do not have a logical one. Exceptions can be used to ignore output types that do not have unique identifiers.

Usage Examples

Incorrect

# eslint @graphql-eslint/strict-id-in-types: ['error', { acceptedIdNames: ['id', '_id'], acceptedIdTypes: ['ID'], exceptions: { suffixes: ['Payload'] } }]
 
# Incorrect field name
type InvalidFieldName {
  key: ID!
}
 
# Incorrect field type
type InvalidFieldType {
  id: String!
}
 
# Incorrect exception suffix
type InvalidSuffixResult {
  data: String!
}
 
# Too many unique identifiers. Must only contain one.
type InvalidFieldName {
  id: ID!
  _id: ID!
}

Correct

# eslint @graphql-eslint/strict-id-in-types: ['error', { acceptedIdNames: ['id', '_id'], acceptedIdTypes: ['ID'], exceptions: { types: ['Error'], suffixes: ['Payload'] } }]
 
type User {
  id: ID!
}
 
type Post {
  _id: ID!
}
 
type CreateUserPayload {
  data: String!
}
 
type Error {
  message: String!
}

Config Schema

The schema defines the following properties:

acceptedIdNames (array)

The object is an array with all elements of the type string.

Default:

["id"]

Additional restrictions:

  • Minimum items: 1
  • Unique items: true

acceptedIdTypes (array)

The object is an array with all elements of the type string.

Default:

["ID"]

Additional restrictions:

  • Minimum items: 1
  • Unique items: true

exceptions (object)

Properties of the exceptions object:

types (array)

This is used to exclude types with names that match one of the specified values.

The object is an array with all elements of the type string.

Additional restrictions:

  • Minimum items: 1
  • Unique items: true

suffixes (array)

This is used to exclude types with names with suffixes that match one of the specified values.

The object is an array with all elements of the type string.

Additional restrictions:

  • Minimum items: 1
  • Unique items: true

Resources