How does remult injection into BackendMethods in Deno work?

[ChrisRimmer]

Is there anything specific I have to do to prompt Remult to inject a remult when calling BackendMethods in Deno? I'm running the below code as described in the docs here https://remult.dev/docs/backendMethods.html#deno-and-other-run-times-that-do-not-support-asynclocalstorage but there is no third argument being passed in, when I check in my debugger I very definitely only get two arguments passed at call-time.

Filing this as a discussion for now as I'm not convinced it's a bug, but I'll bring it over to issues if necessary.

import { Model } from "model.ts"

export class ThingController {
    @BackendMethod({allowed: true})
    static async doThing(arg1: string, arg2: string, remult?: Remult) {
        const repo = remult!.repo(Model)

[noam-honig]

Hi @ChrisRimmer,

There are several options you can use:

Option 1 - Add "emitDecoratorMetadata" to deno:

Change deno.json

{
  "tasks": {
    "start": "deno run -A --watch=static/,routes/ dev.ts"
  },
  "compilerOptions": {
    "experimentalDecorators": true,
    "emitDecoratorMetadata":true
    
  },
  "importMap": "./import_map.json"
}

It spits out a warning saying that the option was ignored - but it is not ignored, and it works.

option 2 - specify parameter type:

In the BackendMethod decorator, specify the parameter types:

 @BackendMethod({allowed: true, paramTypes: [String,String,Remult})

Check it out and let me know

[ChrisRimmer]

Option 1 worked like a charm, thanks!