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https://github.com/konjoinfinity/gqltest
A Dual Data Source GraphQL Stitching Example with Queries and Shared Property Mutations
https://github.com/konjoinfinity/gqltest
apollo-gateway apollo-server apollo-server-express express express-graphql fetch graphql graphql-example graphql-express graphql-stitching graphql-tools nodemon
Last synced: 6 days ago
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A Dual Data Source GraphQL Stitching Example with Queries and Shared Property Mutations
- Host: GitHub
- URL: https://github.com/konjoinfinity/gqltest
- Owner: konjoinfinity
- Created: 2023-09-29T02:24:01.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2023-10-03T02:15:47.000Z (about 1 year ago)
- Last Synced: 2023-10-03T11:35:55.910Z (about 1 year ago)
- Topics: apollo-gateway, apollo-server, apollo-server-express, express, express-graphql, fetch, graphql, graphql-example, graphql-express, graphql-stitching, graphql-tools, nodemon
- Language: JavaScript
- Homepage: https://github.com/konjoinfinity/gqltest
- Size: 7.7 MB
- Stars: 3
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# gqltest - GraphQL Stitching
## Getting Started
First install the dependencies:
```bash
npm install
# Or with yarn
yarn install
```
To run the graphql server, run:
```bash
nodemon gateway.js
```
Then you should see:
```bash
Gateway running at http://localhost:4000/
```
To access the Apollo GraphQL Studio Explorer, go to:
```js
http://localhost:4000/
```
## A simple GraphQL instance that:
- [x] Connects to two API data sources
- [x] Combines both schemas using stitching
- [x] Makes both data sources accessible using one query request
- [x] Shared schema data properties are kept in sync
- [x] Shared property mutations update both APIs
## Example Query and Mutation
#### Books Query
```graphql
query Book {
books {
id
genre
publisher
title
}
}
```
#### Example Response
```json
{
"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
```graphql
query Author {
authors {
id
name
nationality
publisher
}
}
```
#### Example Response
```json
{
"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
```graphql
query Book {
books {
id
genre
publisher
title
}
authors {
id
name
nationality
publisher
}
}
```
#### Example Response
```json
{
"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
```graphql
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
```json
{
"bookId": "2",
"authorId": "2",
"publisher": "O'Reilly Group"
}
```
#### Example Response
```json
{
"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"
}
}
}
}
```