Koa - next generation web framework for node.js
Koa is a new web framework designed by the team behind Express, which aims to be a smaller, more expressive, and more robust foundation for web applications and APIs. By leveraging async functions, Koa allows you to ditch callbacks and greatly increase error-handling. Koa does not bundle any middleware within its core, and it provides an elegant suite of methods that make writing servers fast and enjoyable.
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Key Features of the Site
Async/Await Support
Koa uses async functions to eliminate callback hell and simplify error handling.
Lightweight
Koa is very lightweight with only about 550 lines of code, making it more modular and flexible.
Middleware Cascading
Koa middleware cascade in a more traditional way as you may be used to with similar tools - this was previously difficult to make user friendly with node's use of callbacks.
Improved Error Handling
Koa improves error handling by using try/catch, making it easier to write more reliable code.
No Callbacks
Koa's use of async functions allows you to write code without callbacks, leading to cleaner and more readable code.
Context Encapsulation
Koa encapsulates the request and response objects into a single object, providing a simpler API for developers.
Extensible
Koa is designed to be extensible, allowing developers to easily add their own middleware and utilities.
Additional information
Creator
Koa was created by the team behind Express, aiming to be a more modern and robust foundation for web applications and APIs.
License
Koa is released under the MIT license, making it free to use, modify, and distribute.
Community
Koa has a growing community of developers who contribute to its ecosystem by creating middleware, plugins, and sharing best practices.
Performance
Koa is known for its high performance and low overhead, making it an excellent choice for building scalable web applications and APIs.
Compatibility
Koa is compatible with a wide range of Node.js versions, ensuring that developers can use it in various environments.
HTTP headers
Security headers report is a very important part of user data protection. Learn more about http headers for koajs.com