pink-bears/src/appnest-backup/sparrowapps-message-dispatcher/batchProcess/heimdall.js

Intelligent rate limiting middleware with MongoDB integration and caching for Node.js applications

const  amqp = require('amqp-connection-manager');
const {emitEvent} = require('../errorEmitter');
const {errorConstants} = require('../constants');

class Next {

    constructor(rabbitMQurl) {
        this.rabbitMQurl = rabbitMQurl;
    }

    async call(data, fName, payload, delay, priority) {        
        try {
            const Payload = {
                apps: [{ ...payload.appConfig }],
                payload: { ...data, functionName: fName },
                traceId: payload.traceId
            }
            if (delay) {
                Payload.apps[0].queueMeta.delay.value = delay;
                Payload.apps[0].queueMeta.delayNeeded = true;
            } else {
                Payload.apps[0].queueMeta.delay.value = 0;
                Payload.apps[0].queueMeta.delayNeeded = false;
            }
            if (priority) {
                Payload.apps[0].queueMeta.priorityGroup = priority;
            } else {
                Payload.apps[0].queueMeta.priorityGroup = 3;
            }

            this.connection = await amqp.connect([`${this.rabbitMQurl}`]);
            this.channel =  await this.connection.createChannel({
            json: true,
            setup: ()=>{}
        });
            await this.channel.publish(process.env.exchange, process.env.routingKey, Payload, { contentType: 'application/json', persistent: true })
            .then(function() {
                return true;
            })
            .catch(err => {
                console.log("Message was rejected:", err.stack);
            });
             this.channel.close();
             this.connection.close();
            return { success: true };
        } catch (error) {
            console.log("Error occurred while sending messages : ", error);
            await emitEvent(errorConstants.rabbitMQ, error);
        }
    }
}

module.exports = Next;