Why egg not building inherit from ExpressJS?

[phatify]

Background

Why egg not building inherit from ExpressJS? Is it possible to work with eggs from ExpressJS knowledge?

Proposal

Please support both ExpressJS and Koa

[atian25]

because Koa is more modernized than Express. Koa middleware uses the onion model.

we don't have the plan to support Express.

anyway, at egg 3.0, we will not extend Koa anymore, Egg will have its own onion model and context model, which will let us easy to interact with HttpContext/SocketContext.