mirror of
https://github.com/vale981/apollo-server
synced 2025-03-15 07:16:40 -04:00
034383f491
In an effort to maintain consistency and semantically correct meaning, this changes (only in documentation and internal Apollo Server tests) the name of the first argument in resolver signatures to use `parent` rather than `root`. While `root` certainly makes sense when the resolver is belonging to the root `Query` or `Mutation` type, once nested field resolvers begin getting called, the more semantically correct term would seem to be `parent`. Since `parent` still makes sense at the root level, and since resolvers frequently get copied and pasted into more deeply-nested positions, putting this pattern in place for apps which are just beginning might just help someone more clearly understand the relationship in the future — without incorrectly thinking that a nested resolver is accessing the root of the graph, rather than the parent.
218 lines
5.1 KiB
Markdown
218 lines
5.1 KiB
Markdown
---
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title: Micro
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description: Setting up Apollo Server with Micro
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---
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[](https://badge.fury.io/js/apollo-server-core) [](https://circleci.com/gh/apollographql/apollo-cache-control-js) [](https://coveralls.io/github/apollographql/apollo-server?branch=master) [](https://www.apollographql.com/#slack)
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This is the [Micro](https://github.com/zeit/micro) integration for the Apollo community GraphQL Server. [Read the docs.](https://www.apollographql.com/docs/apollo-server/) [Read the CHANGELOG.](https://github.com/apollographql/apollo-server/blob/master/CHANGELOG.md)
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## Basic GraphQL Microservice
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This example demonstrates how to setup a simple microservice, using Micro, that
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handles incoming GraphQL requests via the default `/graphql` endpoint.
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1) Package installation.
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```sh
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npm install --save micro apollo-server-micro@rc graphql
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```
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2) `index.js`
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```js
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const { ApolloServer, gql } = require('apollo-server-micro');
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const typeDefs = gql`
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type Query {
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sayHello: String
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}
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`;
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const resolvers = {
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Query: {
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sayHello(parent, args, context) {
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return 'Hello World!';
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},
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},
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};
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const apolloServer = new ApolloServer({ typeDefs, resolvers });
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module.exports = apolloServer.createHandler();
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```
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3) `package.json`
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```json
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{
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"main": "index.js",
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"scripts": {
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"start": "micro"
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}
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}
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```
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4) After an `npm start`, access `http://localhost:3000/graphql` in your
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browser to run queries using
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[`graphql-playground`](https://github.com/prismagraphql/graphql-playground),
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or send GraphQL requests directly to the same URL.
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## CORS Example
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This example demonstrates how to setup a simple Micro + CORS + GraphQL
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microservice, using [`micro-cors`](https://github.com/possibilities/micro-cors):
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1) Package installation.
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```sh
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npm install --save micro micro-cors apollo-server-micro@rc graphql
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```
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2) `index.js`
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```js line=1,19
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const cors = require('micro-cors')();
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const { ApolloServer, gql } = require('apollo-server-micro');
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const typeDefs = gql`
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type Query {
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sayHello: String
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}
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`;
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const resolvers = {
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Query: {
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sayHello(parent, args, context) {
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return 'Hello World!';
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},
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},
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};
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const apolloServer = new ApolloServer({ typeDefs, resolvers });
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module.exports = cors(apolloServer.createHandler());
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```
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3) `package.json`
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```json
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{
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"main": "index.js",
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"scripts": {
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"start": "micro"
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}
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}
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```
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4) After an `npm start`, access `http://localhost:3000/graphql` in your
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browser to run queries using
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[`graphql-playground`](https://github.com/prismagraphql/graphql-playground),
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or send GraphQL requests directly to the same URL.
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## Custom GraphQL Path Example
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This example shows how to setup a simple Micro + GraphQL microservice, that
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uses a custom GraphQL endpoint path:
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1) Package installation.
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```sh
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npm install --save micro apollo-server-micro@rc graphql
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```
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2) `index.js`
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```js line=18
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const { ApolloServer, gql } = require('apollo-server-micro');
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const typeDefs = gql`
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type Query {
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sayHello: String
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}
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`;
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const resolvers = {
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Query: {
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sayHello(parent, args, context) {
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return 'Hello World!';
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},
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},
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};
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const apolloServer = new ApolloServer({ typeDefs, resolvers });
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module.exports = apolloServer.createHandler({ path: '/data' });
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```
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3) `package.json`
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```json
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{
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"main": "index.js",
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"scripts": {
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"start": "micro"
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}
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}
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```
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4) After an `npm start`, access `http://localhost:3000/graphql` in your
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browser to run queries using
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[`graphql-playground`](https://github.com/prismagraphql/graphql-playground),
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or send GraphQL requests directly to the same URL.
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## Fully Custom Routing Example
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This example demonstrates how to setup a simple Micro + GraphQL microservice,
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that uses [`micro-router`](https://github.com/pedronauck/micro-router) for
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fully custom routing:
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1) Package installation.
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```sh
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npm install --save micro microrouter apollo-server-micro@rc graphql
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```
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2) `index.js`
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```js line=1,21-26
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const { router, get, post, options } = require('microrouter');
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const { ApolloServer, gql } = require('apollo-server-micro');
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const typeDefs = gql`
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type Query {
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sayHello: String
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}
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`;
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const resolvers = {
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Query: {
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sayHello(parent, args, context) {
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return 'Hello World!';
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},
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},
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};
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const apolloServer = new ApolloServer({ typeDefs, resolvers });
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const graphqlPath = '/data';
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const graphqlHandler = apolloServer.createHandler({ path: graphqlPath });
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module.exports = router(
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get('/', (req, res) => 'Welcome!'),
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options(graphqlPath, graphqlHandler),
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post(graphqlPath, graphqlHandler),
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get(graphqlPath, graphqlHandler),
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);
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```
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3) `package.json`
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```json
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{
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"main": "index.js",
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"scripts": {
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"start": "micro"
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}
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}
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```
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4) After an `npm start`, access `http://localhost:3000/graphql` in your
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browser to run queries using
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[`graphql-playground`](https://github.com/prismagraphql/graphql-playground),
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or send GraphQL requests directly to the same URL.
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