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Showing content from https://github.com/typestack/routing-controllers/issues/642 below:

TypeDI integration not working as expected on docs · Issue #642 · typestack/routing-controllers · GitHub

Cannot use TypeDI as explained on the README for basic services.

Obviously, it is written that it only requires the @Service on service side (seems legit), but this actually doesn't work without telling @Service before the controller as well.

Minimal code-snippet showcasing the problem

Controller snippet

import { Service } from 'typedi'

import { Get, JsonController, Param, State } from 'routing-controllers'
import { CollaboratorService } from '../services/CollaboratorService'

@JsonController('/service/:serviceId/collaborator')
@Service() // This shouldn't be required as described on the README, but it is actually required to run the app as expected
export class CollaboratorController {
  constructor(private collaboratorService: CollaboratorService) { }

  @Get('/')
  async getCollaborators (@State('user') user: User, @Param('serviceId') serviceId: number) {
    return await this.collaboratorService.getCollaborators(
      user.id,
      serviceId
    )
  }

Actual service snippet

import { Service } from 'typedi'

@Service()
export class CollaboratorService {
  async getCollaborators (userId: number, serviceId: number) {
    ...
  }
}

I've imported everything and created the DI Container before the app, the Controller should be working without the @Service decorator declaration.

It doesn't, if I try to run the code without the @Service decorator on top of the Controller, I'll get the following error:

{
    "name": "ServiceNotFoundError",
    "message": "Service with \"MaybeConstructable<CollaboratorService>\" identifier was not found in the container. Register it before usage via explicitly calling the \"Container.set\" function or using the \"@Service()\" decorator.",
    "stack": "ServiceNotFoundError: Service with \"MaybeConstructable<CollaboratorService>\" identifier was not found in the container. Register it before usage via explicitly calling the \"Container.set\" function or using the \"@Service()\" decorator.\n    at ContainerInstance.get (L:\\...\\node_modules\\typedi\\cjs\\container-instance.class.js:45:15)\n    at Object.value (L:\\...\\node_modules\\typedi\\cjs\\decorators\\inject.decorator.js:31:42)\n    at L:\\...\\node_modules\\typedi\\cjs\\container-instance.class.js:286:58\n    at Array.forEach (<anonymous>)\n    at ContainerInstance.applyPropertyHandlers (L:\\...\\node_modules\\typedi\\cjs\\container-instance.class.js:280:46)\n    at ContainerInstance.getServiceValue (L:\\...\\node_modules\\typedi\\cjs\\container-instance.class.js:240:18)\n    at ContainerInstance.get (L:\\...\\node_modules\\typedi\\cjs\\container-instance.class.js:29:25)\n    at Function.get (L:\\...\\node_modules\\typedi\\cjs\\container.class.js:28:36)\n    at Object.getFromContainer (L:\\...\\node_modules\\routing-controllers\\container.js:40:42)\n    at ControllerMetadata.getInstance (L:\\...\\node_modules\\routing-controllers\\metadata\\ControllerMetadata.js:26:28)",
    "normalizedIdentifier": "MaybeConstructable<CollaboratorService>"
}

I don't know if this is an upstream issue or not.

imjared, feimosi, songjiachao, MykleNero, SmileJayden and 11 morehectorsum

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