DEV Community

Discussion on: Simplify your Node code with Continuation Local Storage variables

Collapse
miketalbot profile image
Michael John Talbot Author

You are right, it's pretty like response.locals in Express (app.locals are really rather global), I haven't used KoaJS. The difference being that you don't have to pass response through to every function you call as cls is defined as a require.

Collapse
renoirb profile image
Renoir Boulanger

Koa with ctx.state is unique per request per user. Look the source up, it's great. I prefer it to Express. It's actually from some folks from Express. But the API is more modern. I imagine that Express 5 (in beta?) is inspired by it

Thread Thread
miketalbot profile image
Michael John Talbot Author

Looks from the docs that you are still supposed to pass it on though? It's not a global like cls unless I'm missing something. If that's the case then you put it in cls and never pass it through function layers, callback and events etc.