How to use with graphql-tools

[os-guild]

How to use with graphql-tools

[yoavkarako]

I've put together a makeshift solution to integrate the package with graphql-tools.
Unfortunately, it still needs work as the introspection doesn't update correctly, which screws with graphiql. It's more a prototype than anything else

import { makeExecutableSchema, SchemaDirectiveVisitor } from "graphql-tools";

class FilterTypeDirective extends SchemaDirectiveVisitor {
    visitFieldDefinition(field) {
        const type = field.args[0].type;
        const queryArgs = getGraphQLQueryArgs(field.args[0].type);
        field.args = Object.keys(queryArgs).map(key => ({
            ...queryArgs[key],
            name: key
        }));
        field.resolve = getMongoDbQueryResolver(type, field.resolve);
    }
};

const typeDefs = `
type Name {
    first: String
    last: String
}

type Person {
    name: Name
    age: Int
}

type Query {
    people(type: Person): [Person] @FilterType
}
`;

const resolvers = {
    Query: {
        async people(filter, projection, options, obj, args, context) {
            return await context.db.collection('persons').find(filter, projection, options).toArray();
        }
    }
};

let schema = makeExecutableSchema({
    typeDefs,
    resolvers,
    schemaDirectives: {
        FilterType: FilterTypeDirective
    }
});

You need to add the FilterTypeDirective directive over the main field, and add the main type as an argument to that field under the name type. The resolver is what you would put in place of the callback arg in the getMongoDbQueryResolver.

I hope to have a complete solution to this issue added to the package at some point due to graphql-tools's popularity. Anyone familiar with graphql-tools who knows a better way to achieve this (Without screwing with the introspection/cleaner) is welcome to chip in.

[daniele-zurico]

@Jscott388 have you been able to use it in apollo-server? I'm trying to understand if I can use it

[Jscott388]

No I haven’t figured it out.

[dohomi]

I came across this package - it would be nice to see an integration with graphql-yoga to build it directly upon a server. I wrote a small package with authentication, subscription and CRUD here: https://github.com/dohomi/graphql-yoga-mongodb
It would be nice to extend it with graphql-to-mongodb just for better usability out of the box

[ansarizafar]

Any update on this issue?

[yoavkarako]

#37 done