idio-graphql resolver hooks example

resolver-hooks.js

const { combineNodes, GraphQLNode } = require("idio-graphql");
const { ApolloServer } = require("apollo-server");
const gql = require("graphql-tag");

const User = new GraphQLNode({
    name: "User",
    typeDefs: gql`
        type User {
            name: String
        }

        type Query {
            user: User
        }
    `,
    resolvers: {
        Query: {
            user: {
                pre: (root, args, context) => {
                    context.song += " cat";
                },
                resolve: (root, args, context) => {
                    context.song += " called";

                    return { name: "dasiy" };
                },
                post: [
                    (resolve, root, args, context) => {
                        context.song += ` ${resolve.name} jumped`;
                    },
                    (resolve, root, args, context) => {
                        context.song += ` over the moon`;

                        console.log(context.song);
                    }
                ]
            }
        }
    }
});

async function main() {
    try {
        const { typeDefs, resolvers } = await combineNodes([User]);

        const server = new ApolloServer({
            typeDefs,
            resolvers,
            context: { song: "the" }
        });

        await server.listen(4000);

        console.log(`Server up on port 4000 🚀`);
    } catch (error) {
        console.error(error);
    }
}

main();