how to seperate schema and resolvers and merage them apollo-server-express - graphql

Question

I have User and Post typeDefs/resolvers I want to separate them so I can get
User.schema.js
User.resolver.js
Post.schema.js
Post.resolver.js
link.Schema.js
link.resolvers.js
how to do this and merge them to get just one typeDefs/resolvers to pass it to
const server = new ApolloServer({
typeDefs,
resolvers
});

Answer 1

I have been using the merge-graphql-schemas package for the type definition and lodash deep object merge function for the resolvers like so:
import merge from "lodash/merge"
import { mergeTypes } from "merge-graphql-schemas"
import UserSchema from "./User.schema"
import UserResolvers from "./User.resolvers"
import PostSchema from "./Post.schema"
import PostResolvers from "./Post.resolvers"
import LinkSchema from "./Link.schema"
import LinkResolvers from "./Link.resolvers"
const typeDefs = mergeTypes([UserSchema, PostSchema, LinkSchema])
const resolvers = merge(UserResolvers, PostResolvers, LinkResolvers)
const server = new ApolloServer({
typeDefs,
resolvers
});
EDIT: please note that graphql-tools's mergeSchemas is now the recommended way of schema stitching with apollo server now.

Answer 2

There is no need for some more dependency for merging the types, as graphql-tools are fine for them.
Have a look https://github.com/techyaura/graphqlNodeMongodb-server/tree/master/src/gql, if it helps.
I have two files todo.types.js & user.type.js in the repo https://github.com/techyaura/graphqlNodeMongodb-server/tree/master/src/gql/types & I am simply concatenating them & that's working fine.
NOTE: I am not using APOLLO GRAPHQL, instead using express-graphql simply