此程序包已弃用，现在仅导出makeExecutableSchema

Question

当我启动我的graphql服务器时，我收到如下错误：

This package has been deprecated and now it only exports makeExecutableSchema.
And it will no longer receive updates.
We recommend you to migrate to scoped packages such as @graphql-tools/schema, @graphql-tools/utils and etc.
Check out https://www.graphql-tools.com to learn what package you should use instead!
E:\Training\HandsOnTypescript\Chap9\graphql-schema\node_modules\apollo-server-core\dist\ApolloServer.js:273
            throw new Error('You must `await server.start()` before calling `server.' +
            ^

Error: You must `await server.start()` before calling `server.applyMiddleware()

`

我的代码：

import express from "express";
import { ApolloServer } from "apollo-server-express";
import { makeExecutableSchema } from '@graphql-tools/schema';
import typeDefs from "./typeDefs";
import resolvers from "./resolvers";

const app = express();

const schema = makeExecutableSchema({ typeDefs, resolvers });

const apolloServer = new ApolloServer({ schema, context: ({ req, res }: any) => ({ req, res }) });
apolloServer.applyMiddleware({ app, cors: false });

app.listen({ port: 8000 }, () => {
    console.log('graphic server ready');
})  

有谁能帮我理解这个问题吗？

Answer 1

您不需要下面这一行，因为Apollo Server从typeDefs和解析器生成可执行模式。

const schema = makeExecutableSchema({ typeDefs, resolvers });

只需将类型定义和解析器作为

const apolloServer = new ApolloServer({ typeDefs, resolvers });

确保通过将typeDefs标记应用于有效的架构定义语言(SDL)字符串来生成传递给AppoloServer的gql。请参阅Step 3: Define your GraphQL schema