内容来自官方的demo，主要是一个学习
环境准备
- docker-compose
version: "3"
services:
mongodb:
image: mongo:3
ports:
- "27017:27017"
- 项目初始化
yarn init -y
- 添加依赖
yarn add @graphql-mesh/cli @graphql-mesh/mongoose @graphql-mesh/runtime graphql mongoose ts-node
yarn add @types/mongoose @types/node typescript --dev
- package.json
{
"name": "third",
"version": "1.0.0",
"main": "index.js",
"license": "MIT",
"dependencies": {
"@graphql-mesh/cli": "^0.0.16",
"@graphql-mesh/mongoose": "^0.0.16",
"@graphql-mesh/runtime": "^0.0.16",
"graphql": "^14.6.0",
"mongoose": "^5.9.6",
"ts-node": "^8.8.1"
},
"scripts": {
"start": "graphql-mesh serve"
},
"devDependencies": {
"@types/mongoose": "^5.7.7",
"@types/node": "^13.9.3",
"typescript": "^3.8.3"
}
}
- 启动mongo 服务
docker-compose up -d
集成使用
- .meshrc.yml 文件
require:
- ts-node/register/transpile-only
sources:
- name: Mongoose
handler:
mongoose:
connectionString: mongodb://localhost:27017/test
models:
- name: User
path: ./src/models.ts#User
- 模型定义
src/models.ts
import { Schema, model } from 'mongoose';
const LanguagesSchema = new Schema(
{
language: String,
skill: {
type: String,
enum: ['basic', 'fluent', 'native'],
},
},
{
_id: false, // disable `_id` field for `Language` schema
}
);
const AddressSchema = new Schema({
street: String,
geo: {
type: [Number], // [<longitude>, <latitude>]
index: '2dsphere', // create the geospatial index
},
});
export const UserSchema = new Schema(
{
name: {
type: String,
index: true,
},
age: {
type: Number,
index: true,
},
languages: {
type: [LanguagesSchema], // you may include other schemas (also as array of embedded documents)
default: [],
},
contacts: {
// another mongoose way for providing embedded documents
email: String,
phones: [String], // array of strings
},
gender: {
// enum field with values
type: String,
enum: ['male', 'female', 'ladyboy'],
},
address: {
type: AddressSchema,
},
someMixed: {
type: Schema.Types.Mixed,
description: 'Some dynamic data',
},
salaryDecimal: {
type: Schema.Types.Decimal128,
index: true,
},
},
{
collection: 'user_users',
}
);
UserSchema.index({ gender: 1, age: -1 });
export const User = model('User', UserSchema);
- 启动服务
yarn start
- 效果
访问地址: http://localhost:4000 
- 数据操作
说明
基于graphql-mesh 强大handler 以及schema 转换能力，我们可以方便的进行graphql 数据的处理