uzen/dist/graphql/index.js

General-purpose GraphQL subscription server library

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createGraphQLServer = createGraphQLServer;
const schema_1 = require("@graphql-tools/schema");
const load_1 = require("@graphql-tools/load");
const graphql_file_loader_1 = require("@graphql-tools/graphql-file-loader");
const graphql_yoga_1 = require("graphql-yoga");
const graphql_scalars_1 = require("graphql-scalars");
const path_1 = require("path");
const model_notify_resolver_1 = __importDefault(require("./modules/subscription/model-notify.resolver"));
const scalars_1 = require("./scalars");
function createGraphQLServer(config) {
    const typeDefs = (0, load_1.loadSchemaSync)((0, path_1.join)(__dirname, '**/*.gql'), {
        loaders: [new graphql_file_loader_1.GraphQLFileLoader()]
    });
    const mergeResolvers = (...resolverArrays) => {
        return resolverArrays.reduce((acc, resolvers) => {
            Object.keys(resolvers).forEach((type) => {
                if (!acc[type]) {
                    acc[type] = {};
                }
                Object.assign(acc[type], resolvers[type]);
            });
            return acc;
        }, {});
    };
    const resolvers = mergeResolvers(model_notify_resolver_1.default);
    const schema = (0, schema_1.makeExecutableSchema)({
        typeDefs,
        resolvers: {
            ...resolvers,
            JSONString: scalars_1.JSONString,
            JSON: graphql_scalars_1.GraphQLJSON,
            JSONOb: graphql_scalars_1.GraphQLJSONObject,
            DateTime: graphql_scalars_1.GraphQLDateTime,
        },
    });
    const yoga = (0, graphql_yoga_1.createYoga)({
        cors: config.cors,
        graphqlEndpoint: `/${config.endpoint || 'uzen'}`,
        schema,
        logging: config.logging,
        graphiql: config.graphiql || false,
        context: {
            pubsub: config.pubsub,
        },
        landingPage: ({ fetchAPI }) => {
            return new fetchAPI.Response(config.landingPage, {
                status: 404,
                headers: {
                    'Content-Type': 'text/html'
                }
            });
        },
    });
    return yoga;
}