Koa vs Moleculer: What are the differences?
Developers describe Koa as "Next generation web framework for node.js". Koa aims to be a smaller, more expressive, and more robust foundation for web applications and APIs. Through leveraging generators Koa allows you to ditch callbacks and greatly increase error-handling. Koa does not bundle any middleware. On the other hand, Moleculer is detailed as "Fast & powerful microservices framework for NodeJS". It is a fault tolerant framework. It has built-in load balancer, circuit breaker, retries, timeout and bulkhead features. It is open source and free of charge project.
Koa and Moleculer can be categorized as "Microframeworks (Backend)" tools.
Some of the features offered by Koa are:
- Provides 3 different kinds of functions as middleware
- common function
- async function
On the other hand, Moleculer provides the following key features:
- Blazing fast
- Open source
Koa and Moleculer are both open source tools. It seems that Koa with 27.3K GitHub stars and 2.51K forks on GitHub has more adoption than Moleculer with 2.85K GitHub stars and 252 GitHub forks.