import { TypeList } from "docs-ui"
# GraphQLUtils
## Classes
- [GraphQLParser](../GraphQLUtils/classes/utils.GraphQLUtils.GraphQLParser/page.mdx)
## Functions
- [cleanGraphQLSchema](page.mdx#cleangraphqlschema)
- [extractRelationsFromGQL](page.mdx#extractrelationsfromgql)
- [gqlGetFieldsAndRelations](page.mdx#gqlgetfieldsandrelations)
- [gqlSchemaToTypes](page.mdx#gqlschematotypes)
- [graphqlSchemaToFields](page.mdx#graphqlschematofields)
___
## Functions
### cleanGraphQLSchema
#### Parameters
#### Returns
`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]}]} expandUrl="https://docs.medusajs.com/learn/fundamentals/data-models/manage-relationships#retrieve-records-of-relation" sectionTitle="cleanGraphQLSchema"/>
`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]}]} expandUrl="https://docs.medusajs.com/learn/fundamentals/data-models/manage-relationships#retrieve-records-of-relation" sectionTitle="cleanGraphQLSchema"/>
### extractRelationsFromGQL
Extracts only the relation fields from the GraphQL type map.
#### Parameters
#### Returns
### gqlGetFieldsAndRelations
Generate a list of fields and fields relations for a given type with the requested relations
#### Parameters
#### Returns
### gqlSchemaToTypes
#### Parameters
`","description":"Keys that can be used to link to other modules. e.g { product\\_id: \"Product\" } \"Product\" being the entity it refers to","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"isReadOnlyLink","type":"`boolean`","description":"If true it expands a RemoteQuery property but doesn't create a pivot table","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"extraDataFields","type":"`string`[]","description":"Fields that will be part of the link record aside from the primary keys that can be updated\nIf not explicitly defined, this array will be populated by databaseConfig.extraFields","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"databaseConfig","type":"`object`","description":"","optional":true,"defaultValue":"","expandable":false,"children":[]}]},{"name":"interfaceName","type":"`string`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]}]}]} expandUrl="https://docs.medusajs.com/learn/fundamentals/data-models/manage-relationships#retrieve-records-of-relation" sectionTitle="gqlSchemaToTypes"/>
#### Returns
### graphqlSchemaToFields
From graphql schema get all the fields for the requested type and relations
#### Example
```ts
const userModule = `
type User {
id: ID!
name: String!
blabla: WHATEVER
}
type Post {
author: User!
}
`
const postModule = `
type Post {
id: ID!
title: String!
date: String
}
type User {
posts: [Post!]!
}
type WHATEVER {
random_field: String
post: Post
}
`
const mergedSchema = mergeTypeDefs([userModule, postModule])
const schema = makeExecutableSchema({
typeDefs: mergedSchema,
})
const fields = graphqlSchemaToFields(types, "User", ["posts"])
console.log(fields)
// [
// "id",
// "name",
// "posts.id",
// "posts.title",
// "posts.date",
// ]
```
#### Parameters
#### Returns