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A Reply based GraphQL Server for Loopback

Combine the powers of GraphQL with the backend of Loopback to automatically generate GraphQL endpoints based on Loopback Schema.

Installation

npm i loopback-graphql-server -S

Add the loopback-graphql-server component to the server/component-config.json:

"loopback-graphql-server": {
  "path": "/graphql",
  "graphiqlPath": "/graphiql",
  "modelMutationGroups": false,
  "modelQueryGroups": true
}

Requests will be posted to path path. (Default: /graphql);

Graphiql is available on graphiqlPath path. (Default: /graphiql);

Starter

(https://github.com/yahoohung/loopback-graphql-starter)

ACL and role mapping

• Auto on/off access control
• Enable loopback based ACL configuration

Access token

• Accepts AccessToken for authenticated API calls
• Get access token in operation hooks

Queries

• node query to fetch single entity by ID
• Filter support for where with operators(https://loopback.io/doc/en/lb3/Where-filter.html) and order filters on queries
• Support for relations and querying related data
• Graphql Connections support for listed data
• Data pagination support by using navtive loopback function (limit, offset)
• Graphql Pagination (first, last, before, after)
• Remote methods integration
• Display total count number
• Allow to select single level or nested schema

Mutations

• Single level schema structure
• Maps all post, put, patch and delete methods to mutations
• Remote methods integration

Subscriptions

• Deprecated

Other Features

Loopback Types

• Any
• Array
• Boolean
• Buffer
• Date
• GeoPoint
• Null
• Number
• Object
• String

Loopback Relations

• BelongsTo
• HasOne
• HasMany
• HasManyThrough
• HasAndBelongsToMany
• Polymorphic
• EmbedsOne
• EmbedsMany
• ReferencesMany

Todo

• File uploads

Inspiration

This repository originally started as a fork of the loopback-graphql project by Tallyb and the loopback-graphql-relay by BlueEastCode. I have fixed many bugs and tested on enterprise environment. This version is ready for production use.