Welcome! In this article, we will be developing a secure and lightweight REST API using Node.js, Express server, and MongoDB from scratch that can be used as a backend for authentication systems. This is completely a beginner-friendly article. As a bonus, I have explained how to create a simple referral…

A simple workaround that can save tons of gas! Now-a-days, a lot of NFT projects are being launched every single day. During the public sale, the gas fee is going crazy. Have a look at the picture below 👇

Using NodeJS & Ethereum Blockchain — Yeah! That’s true. Now we can send push notifications in a decentralized fashion using the public blockchain — Ethereum. Push notifications are crucial in any applications for improving the user experience. People feel more engaged with the application and they prefer realtime information rather than delayed notifications through email or…

Develop a lightweight, in-memory API rate limiter using Node.js. — Rate Limiting is one of the most important features which should be implemented in every web application. There are a lot of variations in the case of rate-limiting such as - IP based rate limiting — preventing Denial of Service attacks Account specific rate-limiting — protection against brute force attacks …

Leverage the Remix IDE — In this demo, we will be exploring how to create a faucet for your token using Solidity and deploy it to the Matic/Polygon live network. There are several reasons for a token to have a faucet. It can be a mainnet faucet used to distribute tokens to the community on…

Sentiment based trading-bot on Binance using NodeJS — Yes! In this article we are going to build a customizable trading bot, that can buy and sell Bitcoins on Binance based on the tweet sentiment whenever Elon musk tweets. Question: Can you tell us the motivation behind this bot? Answer: Sure, why not?!

A curated list for the beginners. — Nowadays, we can see a high rate in the adoption of blockchain technology and cryptocurrencies in particular. As a result, these technologies are transforming into an irreplaceable part of our day-to-day life. However, blockchain has reserved its place almost for the next decade because of its wide range of applicability. …

P2PKH address generation using Node.js. — We are going to have a look at how to create your own Bitcoin wallets — Testnet and Mainnet, using a simple Node.js script. We can generate as many wallets (public/private key pairs) as you want instantly. We don’t need to use any third-party blockchain providers for this, as the…

Use Express.js, BullMQ, Cron jobs, and get email notifications — Everyone in this world is busy and we often forget things. Motivated by these two statements, I decided to build a simple cryptocurrency price alert microservice that will send an email notification if the price of a specified coin goes above/below a certain threshold. You no longer need to stare…