getRemoteSchema - function proposal

I think it would be useful to have such function in graphql-yoga:

export async function getRemoteSchema(uri) {
    const link = new HttpLink({ uri, fetch })
    const introspectionSchema = await introspectSchema(link);
    const graphcoolSchema = makeRemoteExecutableSchema({
        schema: introspectionSchema,
        link
    });

    return graphcoolSchema;
}

To create easily remote schemas and merge them all.

What do you think?

[playerx]

@schickling I’ve created new project @jokio/graphql, it’s graphql server, built on top of graphql-yoga. This package will solve my domain specific problems, but for now there are more generic solutions.

Here is the example of complex scenario:

• stitch remote schemas
• split your local code to multiple little schemas
• working with rest apis

example: https://github.com/jokio/graph/blob/master/src/index.ts

Please check out and if you will like any ideas I can send pull request.

Discussion

I’ve found two main issues while I was developing my package and I want to discuss:

1. I need this code to be async, because I’m going to make authentication if user will enable it.

2. graphql-yoga creates context for web sockets per operation (onOperation) and I need it to be created only once when user connects (onConnect), based on connectionParams. What was the reason of using onOperation?

[playerx]

My use case is to have graphql micro-services: Users, Roles, Game1, Game2, Payments and to stitch them together like that: (urls are mock)

const usersSchema = await getRemoteSchema('https://users.jok.io/graphql');
const rolesSchema = await getRemoteSchema('https://roles.jok.io/graphql');
const game1Schema = await getRemoteSchema('https://game1.jok.io/graphql');
const game2Schema = await getRemoteSchema('https://game2.jok.io/graphql');
const paymentsSchema = await getRemoteSchema('http://payments.jok.io/graphql');

const typeDefs = `...`
const resolvers = {...}

const schema = mergeSchemas({
  schemas: [usersSchema, rolesSchema, game1Schema, game2Schema, paymentsSchema, typeDefs],
  resolvers: resolvers
});

...