merge-graphql-schemas 是一个方便的工具，可以进行schema 以及resovler 的合并处理
一个schema 合并参考demo
- schema 定义
// ./graphql/types/clientType.js
export default `
type Client {
id: ID!
name: String
age: Int
products: [Product]
}
type Query {
clients: [Client]
client(id: ID!): Client
}
type Mutation {
addClient(name: String!, age: Int!): Client
}
`;
// ./graphql/types/productType.js
export default `
type Product {
id: ID!
description: String
price: Int
client: Client
}
type Query {
products: [Product]
product(id: ID!): Product
}
`;
- 合并
// ./graphql/types/index.js
import { mergeTypes } from 'merge-graphql-schemas';
import clientType from './clientType';
import productType from './productType';
const types = [
clientType,
productType,
];
// NOTE: 2nd param is optional, and defaults to false
// Only use if you have defined the same type multiple times in
// different files and wish to attempt merging them together.
export default mergeTypes(types, { all: true });
说明
如果在早期项目规划schema 约定还是比较好的时候merge-graphql-schemas 还是一个不错的方案
同时已经好好多解决方案了，apollo 团队的联邦还是很不错的，使用此功能，我们可以方便的进行graphql
api 聚合，如果对于后端约定比较好的，做为graphql gateway 的一个工具也是不错的