node.js

Image by Jae Rue from Pixabay Introduction In this article we will be using the bcryptjs javascript library for hashing and compare password.Here we will build a simple api fore register and login.when we will hash the password when user register and then compare that password with hash when they login. What is bcrypt ? bcrypt is a  password hashing function  designed by  Niels Provos  and David Mazières, based on the  Blowfish  cipher, and presented at  USENIX  in 1999.Besides incorporating a  salt  to protect against  rainbow table  attacks, bcrypt is an adaptive function: over time, the iteration count can be increased to make it slower, so it remains resistant to  brute-force search  attacks even with increasing computation power. What is hashing ?  Hashing is a one way function (well, a mapping). It's irreversible, you apply the secure hash algorithm and you cannot ge...

Introduction In this article, we will explore how to use Sequelize-CLI for creating database tables and setting up powerful relationships between multiple tables using foreign keys in Node.js and MySQL. Project Structure |--------- config |--------- config.json |--------- models |--------- index.js |--------- department.js |--------- emp.js |--------- migrations |--------- [timestamp]-create-department.js |--------- [timestamp]-create-emp.js |--------- seeders |--------- app.js |--------- package.json Setup The Node Project Let's begin by initializing our workspace: Open your console and create a new directory: mkdir seqlcli Navigate into that directory: cd seqlcli Initialize the Node.js project by running: npm init This will prompt you for basic project metadata like name, version, and author, generating a package.json file. Install P...

Prerequisites Node.js MySQL What Is Sequelize? Sequelize is a promise-based Node.js ORM for Postgres, MySQL, MariaDB, SQLite, and Microsoft SQL Server. It features solid transaction support, relations, eager and lazy loading, read replication, and more. Sequelize follows SEMVER and supports Node v6 and above to utilize ES6 features. Express and Sequelize Project Structure |--------- config |--------- db.js |--------- controllers |--------- memberController.js |--------- models |--------- member.js |--------- routes |-------- members.js |--------- views |------- partials |------- header.ejs |------- footer.ejs |------ home.ejs |------ edit.ejs |--------- app.js |--------- package.json Project Setup Let's begin by setting up our workspace: Open the console and type mkdir followed by your directory name. ...