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GraphQL

Introduction​

CairJS use GraphQL, as query language for APIs.

Install package​

npm install @cairjs/graphql

Apollo Server​

We use Apollo Server as a GraphQL server to expose the necessary resources that the Client wants to consume.

Start Server​

index.ts
import { ApolloServer } from '@cairjs/graphql'

const typeDefs = //...
const resolvers = //...

const server = new ApolloServer({ typeDefs, resolvers })

server.listen().then(({ url }) => {
  console.log(`🚀  Server ready at ${url}`)
})

Define a Query resolver​

types​

  • string: .
  • boolen: .
  • number: .
  • ID: .
  • json: .
  • upload: .

array type​

[type]

Example​

import { resolver } from '@cairjs/graphql'

export default resolver({
  type: 'string',
  args: {
    name: {
      type: 'string'
    }
  },
  resolve: async (args, context) => {
    return args.name
  }
})