uzen/dist/graphql/redis-pubsub.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.createRedisPubSub = createRedisPubSub;
const ioredis_1 = __importDefault(require("ioredis"));
const graphql_yoga_1 = require("graphql-yoga");
const redis_event_target_1 = require("@graphql-yoga/redis-event-target");
function createRedisPubSub(redisConfig) {
    const publishClient = new ioredis_1.default({
        ...redisConfig,
        maxRetriesPerRequest: 20,
        retryStrategy: (times) => {
            const delay = Math.min(times * 50, 2000);
            return delay;
        },
    });
    const eventTarget = (0, redis_event_target_1.createRedisEventTarget)({
        publishClient,
        subscribeClient: publishClient.duplicate(),
    });
    const pubsub = (0, graphql_yoga_1.createPubSub)({ eventTarget });
    return { pubsub };
}