export 'IMetadata' was not found in 'kaop-ts'

Hi,

I am facing this error with Angular 4.

export ‘IMetadata’ was not found in ‘kaop-ts’

import { Injectable } from '@angular/core'
import { AdvicePool, adviceMetadata, IMetadata } from 'kaop-ts'

@Injectable()
export class LogAspect extends AdvicePool {
  static log(@adviceMetadata meta: IMetadata) {
    console.log('Called: ', meta.target)
    console.log('Args: ', meta.args)
  }
}

[alexjoverm]

Thanks to @musti2! We learnt something new today

[alexjoverm]

@k1r0s I think it was too early to close, since we didn’t provide a final solution.

I’ve been investigating. As you could have seen in angular/angular-cli#2034 (comment), the issue have implications on Webpack, TypeScript and Angular, so prob the issue will remain for a time, and is not in our side. Is not too important anyway since is a warning.

Anyway, I’ve tried several things from kaop-ts side, and there is nothing we can do. The best workaround I found is in the angular app re-exporting the interface from an inteface-only file (very important, don’t mix interfaces with variables, const, classes or functions in that file):

// app/interfaces.ts
...
export { IMetadata } from 'kaop-ts';
...

// app/logging-aspect.ts

import { adviceMetadata, AdvicePool } from 'kaop-ts'
import { IMetadata } from './interfaces' // Import from here instead

class LoggingAspect extends AdvicePool {
    static log( @adviceMetadata meta: IMetadata) {
        console.log('Called: ', meta.target);
        console.log('Args: ', meta.args);
    }
}

That will remove the warnings.

@k1r0s I’d suggest to add this case to a Troubleshooting section in the Readme. Then is more visible for the angular users