UsamaAshraf

public function up()
{
    Schema::table('jobs', function (Blueprint $table) {
        $table->dropIndex('jobs_queue_reserved_reserved_at_index');
        $table->dropColumn('reserved');
        $table->index(['queue', 'reserved_at']);
    });

    Schema::table('failed_jobs', function (Blueprint $table) {
        $table->longText('exception')->after('payload');

UsamaAshraf

# ...
# https://github.com/exAspArk/batch-loader
gem 'batch-loader'

UsamaAshraf

# Use a standard Node image from Docker Hub 
FROM node:boron

# The Dockerfile's author
LABEL Usama Ashraf

# Create a directory in the container where the code will be placed
RUN mkdir -p /backend-dir-inside-container

# Set this as the default, working directory.

UsamaAshraf

# docker-compose.yml

version: "3.2"
services:
    rabbitmq-server:
        build: ./rabbitmq-server

    python-service:
        build: ./python-service
        # 'rabbitmq-server' will be available as a network reference inside this service 

UsamaAshraf

# main.py

from flask import Flask
from flask import request
from flask import jsonify
from services.user_event_handler import emit_user_profile_update

app = Flask(__name__)

@app.route('/users/<int:user_id>', methods=['POST'])

UsamaAshraf

# services/user_event_handler.py

import pika
import json

def emit_user_profile_update(user_id, new_data):
    # 'rabbitmq-server' is the network reference we have to the broker, 
    # thanks to Docker Compose.
    connection = pika.BlockingConnection(pika.ConnectionParameters(host='rabbitmq-server'))
    channel    = connection.channel()

UsamaAshraf

// main.go

package main

import (
    "fmt"
    "log"
    "github.com/streadway/amqp"
)

UsamaAshraf

# app/middleware/service_worker_manager.rb

class ServiceWorkerManager
  # We’ll pass 'service_workers' when we register this middleware.
  def initialize(app, service_workers)
      @app = app
      @service_workers = service_workers
  end
  
  def call(env)

UsamaAshraf

# config/environments/development.rb

# …

# Add our own middleware before the ActionDispatch::Static 
# middleware and pass it an array of service worker URIs as a 
# parameter.
config.middleware.insert_before ActionDispatch::Static, ServiceWorkerManager, ['service-worker.js']

UsamaAshraf

// service-worker.js

// Changing the cache version will cause existing cached resources to be
// deleted the next time the service worker is re-installed and re-activated.
const CACHE_VERSION = 1;
const CURRENT_CACHE = `your-app-name-cache-v-${CACHE_VERSION}`;
const OFFLINE_PAGE_URL = 'offline/offline.html';
const ASSETS_TO_BE_CACHED = ['offline/offline.css', 'offline/offline.jpg', OFFLINE_PAGE_URL];

self.addEventListener('install', event => {