When building your backend application with Sequelize, you need a way to ensure your database is in sync with changes made in your model schemas. Sequelize provides three ways to do this:

sequelize.sync({force: true}) — When your application starts up, this deletes all tables including the data in them, and recreate them from scratch. If you have any changes in the model schema definitions, it will update them as well. This is suitable for development and not for production. If you are doing rapid development and you don’t care about existing data in your database, this is fine.

sequelize.sync() —…


Overview of NestJs:

Nest (NestJS) is a framework for building efficient, scalable Node.js server-side applications. It is built with and fully supports TypeScript (yet still enables developers to code in pure JavaScript) and combines elements of OOP (Object Oriented Programming), FP (Functional Programming), and FRP (Functional Reactive Programming). Nest is an MVC framework.

One of the key benefits of Nest is that it provides an out-of-the-box application architecture that allows developers and teams to create highly testable, scalable, loosely coupled, and easily maintainable applications.

Prerequisite:

Knowledge of TypeScript and JavaScript is very important. Experience with Angular is a plus, but no worries this post…


Sequelize scoping allows you to define commonly used queries that you can easily use later. Scopes are defined in the model definition and can be finder objects, or functions returning finder objects.

TheaddScope() method is a way to add scopes after a model has been defined. Its usage isn’t well-documented on Sequelize doc hence this post.

Problem:
If you want to use Scope in Sequelize, it is quite straightforward from the documentation but when your Scope involves including other models in its include[]array, it is advisable to use the addScope()method.

Sequelize models are defined alphabetically, Model Acomes first before Model…


If you are a beginner in the software development ecosystem, chances are you can’t wait to start developing badass web apps, mobile or desktop apps.

Perhaps you are having problems deciding which programming language or Platform to start with. Should I start with web apps, or mobile apps? If mobile, should I build for Android, IOS, or Windows devices? Or should I just learn them all? What programming language should I learn? Which one does what? The more you read online on which language to start with, the more you get confused by the debate on language superiority.

onwuzor victor

Full Stack Software Engineer | Minimalist | Nerd | Technical Writer

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