graphql-list-fields

This is a fork of: jakepusateri/graphql-list-field which adds named-inline-fragements (see description below). If the PR is merged into upstream, we'll get rid of the fork again.

When implementing a GraphQL server, it can be useful to know the list of fields being queried on a given type. This module takes a GraphQLResolveInfo object and returns a list of fields.

Supported features

• Basic Fields
• Fragments
• Inline Fragments
• @skip and @include directives
• Nested fields into dot.notation

npm install --save graphql-list-fields

Usage

import getFieldNames from 'graphql-list-fields';

// in some resolve function
resolve(parent, args, context, info) {
    const fields = getFieldNames(info);
    return fetch('/someservice/?fields=' + fields.join(','));
}

named inline fragments

When supplying true as the second argument (getFieldList(ast, true)), the type of a spread is included in the path:

{
  someType {
    e {
      ... on NestedType {
        x
      }
    }
  }
}

results in: [e.NestedType.x] instead of [e.x]