resolving promise before initializing datastore

[jamesdixon]

Hi,

As in #39, I'm attempting to set an authorization header in my data store provider to avoid having to do this for each call.

I'm using Ionic's Storage library to store and retrieve the token I'll be passing along with the header. Unfortunately, the call to retrieve the token returns a Promise and because of this, by the time the provider is initialized and the HTTP request has been made, the header has not yet been set.

Does anyone know a way this can be done?

Thanks!

Relevant code:

import { Injectable } from '@angular/core';
import { Http, Headers } from '@angular/http';
import { JsonApiDatastoreConfig, JsonApiDatastore } from 'angular2-jsonapi';
import { Storage } from '@ionic/storage';
import { Customer } from "../../models/customer";
import { AuthProvider } from "../auth/auth";

@Injectable()
@JsonApiDatastoreConfig({
  baseUrl: 'https://localhost:3001/',
  models: {
    Customer
  }
})
export class DataProvider extends JsonApiDatastore {

  constructor(http: Http, private _auth: AuthProvider, private _storage: Storage) {
    super(http);
    this.setHeaders();
  }

  setHeaders() : void {
    this._auth.getToken().then((token) => {
      this.headers = new Headers({ 'Authorization': token });
    });
  }
}