noDuplicateFields

Ce contenu n’est pas encore disponible dans votre langue.

GraphQL

Summary

Rule available since: v1.9.0
Diagnostic Category: lint/suspicious/noDuplicateFields
This rule is recommended, meaning it is enabled by default.
This rule doesn’t have a fix.
The default severity of this rule is information.
Sources:
- Same as @graphql-eslint/no-duplicate-fields

How to configure

1
{
2
  "linter": {
3
    "rules": {
4
      "suspicious": {
5
        "noDuplicateFields": "error"
6
      }
7
    }
8
  }
9
}

Description

No duplicated fields in GraphQL operations.

Checks for duplicate fields in selection set, variables in operation definition, or in arguments set of a field.

Examples

Invalid

1
query {
2
  users {
3
    id
4
    name
5
    email
6
    name
7
  }
8
}

code-block.graphql:6:5 lint/suspicious/noDuplicateFields ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Field `name` defined multiple times.
  
    4 │     name
    5 │     email
  > 6 │     name
      │     ^^^^
    7 │   }
    8 │ }
  
  ℹ Remove the duplicated field.

1
query {
2
  users(
3
    first: 100,
4
    after: 10,
5
    filter: "test",
6
    first: 50
7
  ) {
8
    id
9
  }
10
}

code-block.graphql:6:5 lint/suspicious/noDuplicateFields ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Argument `first` defined multiple times.
  
    4 │     after: 10,
    5 │     filter: “test”,
  > 6 │     first: 50
      │     ^^^^^^^^^
    7 │   ) {
    8 │     id
  
  ℹ Remove the duplicated argument.

1
query ($v: String, $t: String, $v: String) {
2
  id
3
}

code-block.graphql:1:32 lint/suspicious/noDuplicateFields ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Variable `v` defined multiple times.
  
  > 1 │ query ($v: String, $t: String, $v: String) {
      │                                ^^^^^^^^^^
    2 │   id
    3 │ }
  
  ℹ Remove the duplicated variable.

Valid

1
query {
2
  users {
3
    id
4
    name
5
    email
6
  }
7
}