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