是否可以使用Apollo Server在服务器端本地执行变异或查询 [英] Is it possible to execute a mutation or query locally at server side with Apollo Server

问题描述

我想知道是否可以使用Apollo Server在服务器端本地执行变异或查询.

I would like to know if it is possible to execute a mutation or query locally at server side with Apollo Server.

示例:

1-达到端点GET/createNew

1- Endpoint GET /createNew is reached

2-我运行了一个我定义的突变:

2- I run a mutation I defined like:

apolloserver.mutation(mutation_query).then((response)=>{res.status(200)})

3-将新条目添加到数据库中，并向客户端返回JSON字符串

3- A new entry is added to the database and a JSON string is returned to client

是否存在类似的东西? apolloserver 对象在运行时可用吗?

Does something like that exist? Is a apolloserver object available at runtime?

我正在使用NodeJS + Express

I'm using NodeJS + Express

推荐答案

我可以正常使用

首先我们启动对象:

import express from 'express';
import { graphql } from 'graphql';
const context = require('./context'); //this is the object to be passed to each resolver function
const schema = require('./schema'); //this is the object returned by makeExecutableSchema({typeDefs, resolvers})
const app = express();

然后，例如，如果要在端点 GET/execute

Then, if we want, for example, to run a query on endpoint GET /execute

app.get('/execute', function(req, res){
    var query = `
        query myQueryTitle{
            queryName{
                _id,
                ...
            }
        }
    `;

    graphql(schema, query, null, context)
    .then((result) => {
        res.json(result.data.queryName);
    });
})

因此，每当我们要运行查询或突变时，我们都会调用 graphql 并传递 schema ， requestString / query 和 context 对象

So anytime we want to run a query or a mutation, we call graphql passing schema, the requestString/query and the context object

这可能与 graphqlExpress

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