graphQlHandler.js

'use strict';

const modelList = [ 'oneModel',
                    'anotherModel' ]

let modelClasses = modelList.map((c,i,a) => require(`../models/${c}`))
// let datetime = require('../lib/graphQl-dateTime')

const graphql = require('graphql').graphql
const graphQlBuilder = require('objection-graphql').builder

const graphQlSchema = graphQlBuilder().allModels(modelClasses)
                                      .build()

module.exports.graphQl = async (event) => {
  let query = JSON.parse(event.body)

  let result = graphql(graphQlSchema, query )
                      .catch(e => undefined)

  return {
    statusCode: result == undefined ? 404 : 200,
    body: JSON.stringify(result)
  }
}