GraphQL Factory Socket.IO

GraphQL Factory handler for Socket.IO

Example

Server

import SocketIO from 'socket.io'
import http from 'http'
import * as graphql from 'graphql'
import GraphQLFactory from 'graphql-factory'
import factorySocketIO from 'graphql-factory-socket.io'
import definition from '../definition'

const GRAPHQL_EVENT = 'graphql'
const factory = GraphQLFactory(graphql)
const lib = factory.make(definition)
const PORT = 8080
const app = http.createServer((req, res) => res.writeHead(200).end('OK!'))
const io = SocketIO(app)

app.listen(PORT)

io.on('connection', socket => {
  socket.on(
    GRAPHQL_EVENT,
    factorySocketIO(socket, GRAPHQL_EVENT, lib, {})
  )
})

Client

import SocketIOClient from 'socket.io-client'

const GRAPHQL_EVENT = 'graphql'
const socket = SocketIOClient('http://localhost:8080')
const requestId = Date.now()

// listen for events
socket.on(GRAPHQL_EVENT, res => {
  console.log(res)
})

// 
socket.emit(GRAPHQL_EVENT, {
  requestId,
  schema: 'Foo',
  requestString: 'query Query { listFoo }'
})

API

GQLFactorySIO (socket:Socket, event:String, lib:GQLFactoryLibrary, [options:Object])

Creates a new socket.io handler

Parameters

• socket - socket.io socket
• event - name of the event to emit response with
• lib - GraphQL Factory Library containing schema helper methods
• [options]
  • [timeout=10000] {Int}- Timeout in ms before a request fails with a timeout error
  • [rootValue] {Object|Function} - Object or function used to modify the rootValue before the request is sent. Function takes (value, request) as arguments
  • [contextValue] {Object|Function} - Object or function used to modify the contextValue before the request is sent. Function takes (value, request) as arguments
  • [variableValues] {Object|Function} - Object or function used to modify the variableValues before the request is sent. Function takes (value, request) as arguments

Request Body

Requests must be sent using the POST method with a JSON formatted body containing and object with the following fields

• requestId - Optional requestId to track requests. Will be returned in the response object
• schema - Name of the schema to make the request on
• requestString - The graphql request string
• rootValue - Optional rootValue
• contextValue - Optional contextValue
• variableValues - Optional variableValues
• operationName - Optional operationName

Successful requests will have no or empty errors array in the response object