GAZAR

Principal Engineer | Mentor | Educator

App

7 items
Building a Real-Time Chat Application with Socket.IO and Express.js
Building a Real-Time Chat Application with Socket.IO and Express.js

May 5, 2024

In today's interconnected world, real-time communication is paramount. Whether it's for customer support, team collaboration, or social interaction, having a reliable chat application is essential. In this tutorial, we'll walk through building a simple chat application using Socket.IO and Express.js, where messages are stored in memory. We'll utilize events like "chat:receive" and "chat:broadcast" for seamless communication between clients.So on the service side:Then on the client side:In this tutorial, we've built a simple real-time chat application using Socket.IO and Express.js. We utilized events like "chat:receive" and "chat:broadcast" for seamless communication between clients. While this example stores messages in memory, you can extend it further by integrating with a database for persistent storage or adding more features like user authentication and private messaging. Happy coding!
Automate Your Email Sending with Mail Scheduler
Automate Your Email Sending with Mail Scheduler

May 4, 2024

The Mail Scheduler operates on an event-driven approach, leveraging TypeScript to manage tasks and email queues efficiently. Here's a breakdown of the workflow:Define Your Email Configuration:Start by defining your email configuration using a simple JavaScript object. For example:This configuration specifies that an email with the subject "Welcome To Gazar.dev" and the provided body will be sent to the recipient after 2 hours.Enter your email and select the desired event (e.g., testEmail) in the input form above. This triggers the corresponding event, adding a task to the task queue with an execution time of 2 hours.The task queue utilizes a priority queue ordering with the heap sort algorithm to manage tasks efficiently. Every minute, the system checks the queue to determine if it's time to execute a task. Once the scheduled time arrives, the task is dequeued and processed.Upon task execution, the system retrieves the email details from the configuration and adds them to the email queue. The email queue operates on a first-in-first-out (FIFO) basis, ensuring that emails are sent in the order they were scheduled.The Mail Scheduler integrates seamlessly with the Simple Email Service (SES) provided by Amazon Web Services (AWS) for email delivery. Once an email is dequeued from the email queue, it is sent using the SMTP protocol through AWS SES, ensuring reliable and secure delivery.ConclusionWith the Mail Scheduler, automating your email sending tasks has never been easier. By leveraging TypeScript, task queues, and an event-driven approach, you can schedule emails to be sent at specific times without manual intervention. Whether you're sending reminders, notifications, or personalized messages, the Mail Scheduler streamlines the process and saves you time and effort. Try it out today and experience the convenience of automated email scheduling firsthand!Source Code:
Milliseconds Counter App - Interview Question
Milliseconds Counter App - Interview Question

April 17, 2024

In this tutorial, we'll create a Milliseconds Counter App using React and TypeScript. This project will demonstrate how to build a simple web application to display a continuously updating count of milliseconds since the app was loaded. We'll leverage the power of React's component-based architecture along with TypeScript's type safety to create a clean and maintainable codebase.Next, let's create a new TypeScript file named MillisecondsCounter.tsx in the src directory of your project. This file will contain the React component for our app:In this tutorial, we've built a simple Milliseconds Counter App using React and TypeScript. We've leveraged the power of React's component-based architecture along with TypeScript's type safety to create a clean and maintainable codebase. This project serves as a great starting point for further exploration and experimentation with React and TypeScript web development. Happy coding!
Linkedin Recommendation Generator Using ChatGPT
Linkedin Recommendation Generator Using ChatGPT

April 16, 2024

Writing LinkedIn recommendations requires careful consideration of the individual's skills, accomplishments, and contributions. It involves articulating specific examples and experiences that highlight their strengths and expertise. However, many users struggle to craft meaningful recommendations due to time constraints or uncertainty about what to write.Implementation Steps:By leveraging Node.js and the OpenAI API, we can automate the process of creating personalized LinkedIn recommendations, saving time and effort while ensuring high-quality and impactful endorsements. This recommendation generator tool empowers users to showcase their professional accomplishments effectively and build stronger connections within their professional networks. With continued refinement and optimization, it has the potential to revolutionize the way LinkedIn recommendations are crafted and shared.Also: