Advantages of Using NestJS 2025
If you want to develop a microservice that exposes several different functions and events, you can use NestJS. However, there are some limitations. NestJS exposes these options through abstract message and event decorators, which lacks granularity. Ideally, you should build your own service that represents your requirements, rather than using the built-in microservice abstraction. While these decorators provide decent validation, they are limited in terms of capturing complex types.
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NestJS Questions and Answers
What is nestjs?
A framework called Nest.JS is used to create server-side Node.JS applications. Because TypeScript is used in the Nest framework, developers can create extremely scalable and testable applications.
Is nestjs worth it?
Developing amazing, well-structured, lightweight microservices with Nest.JS contributes to advancing the technology stack. The microservice architecture can deliver large, complex applications quickly, frequently, and reliably. Development, extension, and maintenance are efficient when pre-built tools and features are used.
What is nestjs used for?
Scalable, testable, and loosely coupled applications are created using NestJS. It raises the bar for scalable Node.js servers significantly.
Why use nestjs?
It is open source, lightweight, and easy to use. With many features for quickly developing and deploying enterprise services and adhering to the principles of SOLID and 12-factor applications, NestJS is a relatively new backend development option.
How to deploy nestjs?
Prerequisites. Start a NestJS project. Configure a PORT environment variable. Prepare the Docker image. Test the container locally. Manually deploying to Cloud Run. Check your gcloud CLI project is set. Use gcloud run deploy.
How to install nestjs?
You must first install NestJS’s command-line interface (CLI) to use it. The CLI enables you to create a NestJS skeleton project whenever you want to start a new project, so let’s install it by executing the following command: (If you are using NPM as package manager): npm i -g @nestjs/cli (If you are using Yarn as a package manager): yarn global add @nestjs/cli
Why nestjs is bad?
NestJS has no official support regarding Security, and this felt like another deal-breaker, as if the others above weren’t enough. I strongly believe that a security module is crucial to any backend framework.
NestJS vs Loopback4
If you’re building a Node-js application and need an API framework, you might be wondering which one to use. Loopback v4 is an opinionated framework, so there are some differences between it and NestJS. In particular, Loopback v4 lacks some of the features that Loopback v3 had. ExpressJS is not included in the comparison because it works at a lower layer.
If you’re building a simple, single-page application, you’re probably best off with LoopBack. However, if you’re building a large application, NestJS is a better choice. It is easier to develop and maintain, and it allows developers to build loosely coupled, highly testable applications.
Another major difference between the two is their approach to connecting to services. While Loopback is more flexible, Nestjs offers a high degree of abstraction that makes it easier for developers to integrate third-party modules. It also offers a modular architecture, which means that you can use other libraries that are integrated with the framework. It also follows a progressive JavaScript design pattern and provides support for multiple types of server-side applications.
NestJS React PWA
React and NestJS are two frameworks that can be used for developing web applications. Both offer a great deal of flexibility and scalability. If you’re looking for an application framework that’s easy to integrate with existing applications, NestJS is an excellent choice. React and NestJS share similar concepts, but are designed for different purposes.
Nest JS takes web development to the next level with its intuitive, hierarchical process. This allows developers to build an application quickly and easily using a variety of modules. This framework is also extremely easy to use and is supported by a large community. It also comes with 24×7 support, which is invaluable if you have any problems developing or deploying a web application.
A Progressive Web Application (PWA) is a website that acts like a mobile app. Its icons are designed to mimic those of a mobile app. Popular examples of PWAs include Twitter, Starbucks, and Google News. These applications increase user engagement and reduce the amount of data they consume – which is important for those with slow connections and/or slower devices.
NestJS Healthcheck
Healthcheck is a mechanism for ensuring that your backend application is ready to handle requests. This is particularly important for complicated applications with many dependencies. Health checks can be implemented in NestJS applications using the Terminus package. This package provides a special REST endpoint that triggers a service health check, which includes database connections and system properties. It also checks whether disk space, resources, and other elements are available.
You can also use the HealthCheckStrategy with Nestjs, which is the preferred approach. You can find a detailed example of how to configure this in the Nestjs docs. You can use the HealthCheckStrategy to register different HealthIndicatorFunctions.
Besides registering a health check function, you can also use it in other plugins and services that rely on external services. You can use this module to wrap an existing service or to write a custom one.
Hapi vs NestJS
When comparing Hapi and NestJS, there are many features that set them apart from one another. Hapi is a web framework that enables the creation of complex applications. Hapi uses RESTful APIs and separates code by data model. Hapi also has a common command-line interface.
Hapi is an open source framework that can be used to create REST APIs and other web applications. It is ideal for building API servers, websites, and HTTP proxy applications. It enables developers to spend less time building infrastructure and focus on writing reusable application logic. It has been used by 78 companies including Brainhub, Platform, and Commercetools.
Nest has more downloads and 28k stars on Github. Both frameworks have a long list of useful features and excellent documentation. They are also suited for a wide range of use cases. Nest encourages the use of TypeScript, but supports pure JavaScript as well. Nest also comes with a CLI tooling for building applications and bootstrapping new projects.
NestJS a Progressive Node JS Framework
NestJS is a great way to get started developing web applications. It provides a solid foundation to create long-lasting applications. It supports GraphQL and WebSockets, and can be used for building microservices. Regardless of the type of web application you’re developing, NestJS can help you get started.
The underlying architecture of the framework focuses on separating application components into modules. Each module consists of a collection of closely related capabilities. A module is defined using a decorator called @Module(). Nest supports a variety of different libraries for extending the framework and its capabilities.
NestJS Middleware
If you’re using the NestJS middleware, you can easily use Dependency Injection in your projects. You can use Nest’s decorator to make your shared modules available to other modules. This is a great feature that helps you manage dependencies easily. The decorator also makes it easier to export modules that you don’t want to share.
You can also integrate Nest with TypeORM, a mature JavaScript ORM, to write queries and mutations against your data. This middleware also supports GraphQL, which makes it easier to access data and serve clients. It also supports WebSockets, which allows you to provide a real-time experience for your clients.
The main advantage of Nest is that it works well with Angular-based applications. Its primary programming language is TypeScript, which ensures a reliable application. It is also a great choice for large-scale enterprise-level applications.
NestJS Cors
NestJS cors is an extension to the popular AngularJS framework. It allows you to add CSS3 transitions to your HTML. It’s a free and open source project that is available to the public. If you’re interested in contributing to this project, you can read more about the project and its development here.
CORS allows a website to accept requests from other domains and use its resources from those domains. CORS is supported by NestJS and the Express cors package. You can enable CORS using the enableCors() method in your application object. It accepts a configuration object as an optional argument.
NestJS vs Express
ExpressJS and NestJS are two competing frameworks for web applications. Both frameworks offer many of the same features and can be used for small and medium-sized projects. However, they have some major differences. ExpressJS is more flexible and uses a different model view controller (MVC) approach than NestJS.
The most obvious difference is in the approach to unit testing. While Express has built-in unit testing support, Nest uses a spec file to generate testing bed code. This can be a pain if you need to test several different components in a single project. Also, Express requires that you write separate code for testing each component, which can slow down your application’s development time. Despite these differences, both frameworks are suitable for building single-page applications.
While Express is a powerful and popular framework, Nest is faster and more extensible. Its features make it an excellent choice for building and running server-side applications. It also has TypeScript support and is a progressive framework.