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connecting mongodb model to apollo-server 2.0

I am following a tutorial which uses mongo database with graphql, currently the tutor uses apollo-server v1 but I am using apollo-server v2, the problem I'm having is where do i make the connection of my models to graphql,

const express = require("express");
const mongoose = require("mongoose");
const bodyParser = require("body-parser");
const cors = require("cors");
require("dotenv").config( path: "variables.env" );
const Recipe = require("./models/Recipe");
const User = require("./models/User");

// Bring in GraphQL-Express middleware
const graphiqlExpress, graphqlExpress = require("apollo-server-express");
const makeExecutableSchema = require("graphql-tools");

const typeDefs = require("./schema");
const resolvers = require("./resolvers");

// Create schema
const schema = makeExecutableSchema(
typeDefs,
resolvers
);

// Connects to database
mongoose
.connect(process.env.MONGO_URI)
.then(() => console.log("DB connected"))
.catch(err => console.error(err));

// Initializes application
const app = express();

const corsOptions =
origin: "http://localhost:3000",
credentials: true
;
app.use(cors(corsOptions));

// Create GraphiQL application
app.use("/graphiql", graphiqlExpress( endpointURL: "/graphql" ));

// Connect schemas with GraphQL
app.use(
"/graphql",
bodyParser.json(),
graphqlExpress(
schema,
context:
Recipe,
User

)
);

const PORT = process.env.PORT || 4444;

app.listen(PORT, () =>
console.log(`Server listening on PORT $PORT`);
);


so in apollo-server v1 you pass in your mongo schema (models) in graphqlExpress

Connect schemas with GraphQL
app.use(
"/graphql",
bodyParser.json(),
graphqlExpress(
schema,
context:
Recipe,
User

)
);


but in v2 you no longer use graphqlExpress function,

https://www.apollographql.com/docs/apollo-server/v2/migration-two-dot.html

so how/where do i pass in my database models to?

currently I have this

const express = require ('express')
const mongoose = require ('mongoose')
const ApolloServer = require('apollo-server-express');

require('dotenv').config(path: 'variables.env')

// mongo schemas/models
const Recipe = require('./models/Recipe')
const User = require('./models/User')

//Graphql schema
const typeDefs = require('./schema')
const resolvers = require('./resolvers')

// connects to database
mongoose.connect(process.env.MONGO_URI, useNewUrlParser: true )
.then(()=> console.log('DB connected'))
.catch(error => console.log(error))

const PORT = process.env.PORT || 4444;

const server = new ApolloServer( typeDefs, resolvers );

const app = express();
server.applyMiddleware( app );

app.listen( port: PORT , () =>
console.log(`🚀 Server ready at http://localhost:$PORT$server.graphqlPath`)
)


2 Answers
2

This example works perfect with PG, if you are using Mongo, just replace pg calls with mongoose and you should be good to go.

If you want to be exactly like you were before, you need to add the context function onto your ApolloServer init:

context

const server = new ApolloServer(
typeDefs,
resolvers,
context: ( req ) => (
Recipe,
User
)
);


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