gqltest - GraphQL Stitching

Getting Started

First install the dependencies:

npm install
# Or with yarn
yarn install

To run the graphql server, run:

nodemon gateway.js

Then you should see:

Gateway running at http://localhost:4000/

To access the Apollo GraphQL Studio Explorer, go to:

http://localhost:4000/

A simple GraphQL instance that:

Connects to two API data sources
Combines both schemas using stitching
Makes both data sources accessible using one query request
Shared schema data properties are kept in sync
Shared property mutations update both APIs

Example Query and Mutation

Books Query

query Book {
  books {
    id
    genre
    publisher
    title
  }
}

Example Response

{
  "data": {
    "books": [
      {
        "id": "1",
        "genre": "capacitor",
        "publisher": "Random House",
        "title": "saepe dolores voluptas"
      },
      {
        "id": "2",
        "genre": "City Accounts Gender",
        "publisher": "Greenholt - Nitzsche",
        "title": "voluptatem sunt accusamus"
      },
      {
        "id": "3",
        "genre": "Coupe dismiss",
        "publisher": "Green and Sons",
        "title": "dolores ea veniam"
      },
    ]
  }
}

Authors Query

query Author {
  authors {
    id
    name
    nationality
    publisher
  }
}

Example Response

{
  "data": {
    "authors": [
      {
        "id": "1",
        "name": "Elaine Bahringer",
        "nationality": "Cuba",
        "publisher": "Random House"
      },
      {
        "id": "2",
        "name": "Jermaine VonRueden",
        "nationality": "Aruba",
        "publisher": "Lindgren - Ernser"
      },
      {
        "id": "3",
        "name": "Ed Fisher",
        "nationality": "Vietnam",
        "publisher": "Kuphal - Hoppe"
      }
    ]
  }
}

Stitched Books and Authors Query

query Book {
  books {
    id
    genre
    publisher
    title
  }
  authors {
    id
    name
    nationality
    publisher
  }
}

Example Response

{
  "data": {
    "books": [
      {
        "id": "1",
        "genre": "capacitor",
        "publisher": "Random House",
        "title": "saepe dolores voluptas"
      },
      {
        "id": "2",
        "genre": "City Accounts Gender",
        "publisher": "O'Reilly Group",
        "title": "voluptatem sunt accusamus"
      }
    ],
    "authors": [
      {
        "id": "1",
        "name": "Elaine Bahringer",
        "nationality": "Cuba",
        "publisher": "Random House"
      },
      {
        "id": "2",
        "name": "Jermaine VonRueden",
        "nationality": "Aruba",
        "publisher": "O'Reilly Group"
      }
    ]
  }
}

Update Book and Author Publisher Mutation

mutation UpdateBookAndAuthor($bookId: ID!, $authorId: ID!, 
$publisher: String!) {
  updateBookAndAuthor(bookId: $bookId, authorId: $authorId, publisher: $publisher) {
    book {
      id
      title
      genre
      publisher
    }
    author {
      id
      name
      nationality
      publisher
    }
  }
}

Mutation Variables

{
"bookId": "2",
"authorId": "2",
"publisher": "O'Reilly Group"
}

Example Response

{
  "data": {
    "updateBookAndAuthor": {
      "book": {
        "id": "2",
        "title": "voluptatem sunt accusamus",
        "genre": "City Accounts Gender",
        "publisher": "O'Reilly Group"
      },
      "author": {
        "id": "2",
        "name": "Jermaine VonRueden",
        "nationality": "Aruba",
        "publisher": "O'Reilly Group"
      }
    }
  }
}

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gqltest's Introduction

gqltest - GraphQL Stitching

Getting Started

A simple GraphQL instance that:

Example Query and Mutation

Books Query

Example Response

Authors Query

Example Response

Stitched Books and Authors Query

Example Response

Update Book and Author Publisher Mutation

Mutation Variables

Example Response

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