Koa Description
Express's new web framework Koa was created by the team behind Express. It aims to be a smaller and more expressive web framework that can be used to build web applications and APIs. Koa leverages async functions to eliminate callbacks and improve error handling. Koa doesn't bundle any middleware in its core. It provides an elegant suite that makes writing servers fast and fun. A Koa application is an object that contains a collection of middleware functions. These functions are composed and executed in a stack-like fashion upon request. Koa is similar in design to Ruby's Rack and Connect. However, Koa provides high-level "sugar", at the low-level middleware layer. This increases interoperability and robustness and makes middleware writing much more enjoyable.
Koa Alternatives
Jersey
It is not easy to develop RESTful web service that support exposing data in a variety representation media types, and abstract away the low level details of client-server communications without a good toolkit. A standard and portable JAX RS API was designed to simplify the development and deployment of RESTful web service clients and services in Java. Jersey RESTful Web Services 3. x Framework is an open source, production-quality framework that supports Jakarta RESTful Web Services 3.0. Jersey framework is much more than JAX-RS's reference implementation. Jersey's API extends JAXRS with new features. GlassFish will continue to track the JAX-RS API, and release regular releases of production-quality reference implementations. APIs are provided to extend Jersey and build a community. It makes it easy to create RESTful Web Services using Java and the Java Virtual Machine.
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Fastify
A server that is efficient means a lower cost infrastructure, better responsiveness under load, and happier users. How can you efficiently manage your server's resources, while still ensuring that you are serving as many requests as possible without sacrificing security validations or handy development? Fastify is the answer. Fastify is a web framework that focuses on providing the best developer experience possible. It's inspired by Express and Hapi. It is the fastest web framework in town, according to our knowledge.
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Echo
High-performance, extensible, minimalist Go web framework. Highly optimized HTTP router that uses zero dynamic memory allocation and intelligently prioritizes routes. Build a robust and scalable API that can be easily organized into different groups. Install TLS certificates automatically from Let's Encrypt. HTTP/2 support increases speed and improves user experience. You can choose from a variety of middlewares that are already built-in, or you can define your own. Middleware can either be set at the root, group or route level. Data binding for HTTP payloads, including JSON or XML. API to send a wide variety of HTTP responses including JSON, XML or HTML, as well as file, attachment, stream, blob, inline or blob. Template rendering with any template engine. Customized central HTTP error handling. API that is easily extendable. HTTP router optimized to prioritize routes intelligently. Build robust, scalable RESTful APIs. Extensible middleware framework. Define middleware on a root, group or route level. Data binding for JSON XML and form payload.
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Express
Express is a lightweight and flexible Node.js framework that offers a wide range of features for mobile and web applications. It is easy to create a robust API using a variety of HTTP utility methods and middleware. Express offers a thin layer that covers the core web application features without obscuring the Node.js features you already love. Express does not have any notion of a database. Third-party Node modules allow you to interface with almost any database. Express does not recognize 404 responses as errors and will not capture them. This is because a response of 404 indicates that there is no additional work to be done. Express has executed all middleware functions, routes, and found none of them to be responsive.
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Pricing
Pricing Starts At:
Free
Free Version:
Yes
Company Details
Company:
Koa
Website:
koajs.com
Media
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Product Details
Platforms
SaaS
Windows
Mac
Linux
iPhone
iPad
Android
Chromebook
Type of Training
Documentation
Customer Support
Online
Koa Features and Options
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