What framework is used for nodejs backend?

Node.js is a very powerful JavaScript runtime environment that is very useful for building efficient and scalable back-end applications. Node.js provides a rich standard library and a large number of third-party modules, making it easier for developers to build web applications, APIs, agents and other network services.

However, when writing Node.js back-end applications, it is also very important to choose a suitable framework. Because the framework can help you quickly build applications, provide a unified code structure and API, and manage details such as requests and responses.

The following is a list of some commonly used Node.js frameworks for you to choose from:

Express

Express is one of the most popular frameworks for Node.js. It provides a simple and flexible API that can help you build web applications and API services easily. Express supports middleware, routing, template engines, error handlers, and more. It can also be integrated with many third-party modules, such as Mongoose, Passport, etc. Express's documentation is very detailed, and the community is also very active, providing a large number of tutorials, examples, and solutions.

Koa

Koa is a new generation of Node.js framework, built by the original team of Express. Koa attaches great importance to asynchronous process control and middleware mechanisms, and provides a very simple and easy-to-use API. Its predecessor is Express 5.x, but Koa completely rewrote the code of Express 4.x, so its performance, readability and scalability are all excellent. The documentation for Koa is not as complete as Express, but there are good examples and tutorials.

Hapi

Hapi is another popular Node.js framework that is widely used to build large-scale enterprise applications. Hapi provides many tools that allow developers to quickly build web services and APIs. It supports plug-in mode, which can easily add various functions, such as authentication, caching, logging, etc. Hapi also provides a very powerful routing system that can match requests based on multiple conditions such as URL path, request method, etc. Hapi also has complete documentation and community support.

Nest

Nest is a framework for building efficient, scalable Node.js server-side applications. Based on Express and other frameworks, it provides a complete solution for developing complex, modular applications. Nest's features include: object-oriented programming, type safety, modular structure, dependency injection, etc. It also supports GraphQL, WebSocket, gRPC, and more. Nest's documentation is comprehensive and easy to understand, with many tutorials and examples.

Meteor

Meteor is a full-stack JavaScript framework that can be used to build real-time web applications and mobile applications. It combines Node.js, MongoDB and some front-end technologies to provide an end-to-end toolset so that developers can build applications more efficiently. Meteor supports many popular front-end frameworks, including React, Angular, and Vue.js. It also has its own template engine, Blaze. Unlike other frameworks, Meteor's syntax and API are also unique. Meteor's documentation and community are very active, and there are many resources available for learning and reference.

The above frameworks all have their own characteristics, advantages and disadvantages. When choosing a framework, you need to consider the specific needs of your project, your team's skills and experience, available time and resources, and more. But no matter which framework you choose, it is necessary to understand its principles and how to use it.

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