Koa

https://npmcompare.com/compare/connect,express,hapi,koa

Feature	Koa	Express	Hapi
async/await	yes	no	yes
Routing	no	yes	yes
Templating	no	yes
Typescript	yes	yes	@types/hapi
Runs easily on AWS Lambda		yes

• Koa vs Express

  • https://github.com/koajs/koa/blob/master/docs/koa-vs-express.md

  • Koa has async/await support

  • Express is supposed to have it in v5

  • v5 was first mentioned in July 2014

    • https://github.com/expressjs/express/pull/2237

  • Alternatives

    • https://www.npmjs.com/package/@awaitjs/express

  • Koa does not have

    • routes, use a plugin instead

    • templating

    • sending files

• Koa vs Hapi

  • Hapi does not have async/await support

    • https://github.com/hapijs/hapi/issues/3429

    • https://github.com/hapijs/hapi/pull/3486