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javascriptdependency-injectionfunctional-programmingecmascript-6aurelia
Ganbin
Ganbin

Reputation: 2064

How to inject dependencies in Aurelia without using ES6 class feature

How do I inject dependencies when exporting a function instead a class?

Upvotes: 3

Views: 677

Answers (1)

Jeremy Danyow
Jeremy Danyow

Reputation: 26406

Add an inject property listing your dependencies to your constructor function:

import {EventAggregator} from 'aurelia-event-aggregator';

export function Example(eventAggregator) {
  console.log(eventAggregator);
  return {
    message: 'hello world'
  };
}

Example.inject = [EventAggregator];

Running example: https://gist.run/?id=d60c5c7dfbf53e507aae47d6c05b7d36

If you'd like to use the inject decorator manually instead of adding the static inject property you can write:

import {EventAggregator} from 'aurelia-event-aggregator';
import {inject} from 'aurelia-dependency-injection';

export function Example(eventAggregator) {
  console.log(eventAggregator);
  return {
    message: 'hello world'
  };
}

inject(EventAggregator)(Example);

note: standard decorator "@" syntax requires using ES6 classes so you may want to modernize.

Upvotes: 5

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