Angular, get places/address autocomplete predictions with Google Maps Place API

autocomplete.component.ts

import { Component } from '@angular/core';
import { FormGroup, FormBuilder } from '@angular/forms';
import { } from '@types/googlemaps';

@Component({
    selector: 'autocomplete',
    template: `
      <input class="input"
        type="text"
        [(ngModel)]="autocompleteInput"
        (keyup)="searchAddress()">
    `,
    styleUrls: ['./autocomplete.component.scss']
})
export class AutocompleteComponent {

  autocompleteInput:string;
  queryWait:boolean;

  constructor(){}
  
  // triggered by input keyup event
  searchAddress() {
      console.log('search', this.autocompleteInput);
      // whenever a search is triggered
      // a 1 second delay is set to avoid excesive calls to API
      if(!this.queryWait) {
          this.queryWait = true;
          setTimeout(() => {
              // when timeout, it triggers the search and always reads the last query
              this.getAutocompletePredictions();
              this.queryWait = false;
          }, 1000);
      }else{
          console.log('wait ...');
      }          
  }

  private getAutocompletePredictions() {
      if(this.autocompleteInput.length<4) {
          console.log('query is too short, bye');
          return;
      }        
      this.getPlacePredictions(this.autocompleteInput)
          .then(data => {
              console.log('predictions', data);
          })
          .catch(err => console.log(err));
  }
 
  private getPlacePredictions(query: string): Promise<any> {
      let autocompleteSrv = new google.maps.places.AutocompleteService();
      return new Promise((resolve, reject) => {
          autocompleteSrv.getPlacePredictions({
              types: ['geocode','establishment'],
              input: query,
              componentRestrictions: { country: 'AR' }
          }, function (predictions, status) {
              if (status == google.maps.places.PlacesServiceStatus.OK) {
                  resolve(predictions);
              } else {
                  reject(status);
              }
          });
      });
  }        
        
}