Google Place Search

import { Component } from '@angular/core';

@Component({
  selector: 'my-app',
  templateUrl: 'app/app.component.html'
})
export class AppComponent { }

import { platformBrowserDynamic }    from '@angular/platform-browser-dynamic';
import { AppModule } from './app.module';
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/debounceTime';
import 'rxjs/add/operator/distinctUntilChanged';
import 'rxjs/add/operator/switchMap'

platformBrowserDynamic().bootstrapModule(AppModule);

/*
Copyright 2016 thoughtram GmbH. All Rights Reserved.
Use of this source code is governed by an TTML-style license that
can be found in the license.txt file at http://thoughtram.io/license.txt
*/

<!DOCTYPE html>
<html>
  <head>
    <title>Angular 2 Demo: Google Search</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <!-- 1. Load libraries -->
     <!-- Polyfill(s) for older browsers -->
    <script src="https://npmcdn.com/core-js/client/shim.min.js"></script>

    <script src="https://npmcdn.com/zone.js@0.6.12?main=browser"></script>
    <script src="https://npmcdn.com/reflect-metadata@0.1.3"></script>
    <script src="https://npmcdn.com/systemjs@0.19.27/dist/system.src.js"></script>

    <!-- 2. Configure SystemJS -->
    <script src="systemjs.config.js"></script>
    <script>
      System.import('app').catch(function(err){ console.error(err); });
    </script>
  </head>

  <!-- 3. Display the application -->
  <body>
    <my-app>Loading...</my-app>
    
    <script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCRopWDbhNLnc08rtX5jdcMZxBY3uxwjR0&libraries=places"></script>

  </body>

</html>

(function(global) {

  var ngVer = '@2.0.0-rc.5'; // lock in the angular package version; do not let it float to current!
  var routerVer = '@3.0.0-rc.1'; // lock router version
  var formsVer = '@0.3.0'; // lock forms version
  var routerDeprecatedVer = '@2.0.0-rc.2'; // temporarily until we update all the guides

  //map tells the System loader where to look for things
  var  map = {
    'app':                        'app',

    '@angular':                   'https://npmcdn.com/@angular', // sufficient if we didn't pin the version
    '@angular/router':            'https://npmcdn.com/@angular/router' + routerVer,
    '@angular/forms':             'https://npmcdn.com/@angular/forms' + formsVer,
    '@angular/router-deprecated': 'https://npmcdn.com/@angular/router-deprecated' + routerDeprecatedVer,
    'angular2-in-memory-web-api': 'https://npmcdn.com/angular2-in-memory-web-api', // get latest
    'rxjs':                       'https://npmcdn.com/rxjs@5.0.0-beta.6',
    'ts':                         'https://npmcdn.com/plugin-typescript@4.0.10/lib/plugin.js',
    'typescript':                 'https://npmcdn.com/typescript@1.9.0-dev.20160409/lib/typescript.js',
 };

  //packages tells the System loader how to load when no filename and/or no extension
  var packages = {
    'app':                        { main: 'main.ts',  defaultExtension: 'ts' },
    'rxjs':                       { defaultExtension: 'js' },
    'angular2-in-memory-web-api': { main: 'index.js', defaultExtension: 'js' },
  };

  var ngPackageNames = [
    'common',
    'compiler',
    'core',
    'http',
    'platform-browser',
    'platform-browser-dynamic',
    'upgrade',
  ];

  // Add map entries for each angular package
  // only because we're pinning the version with `ngVer`.
  ngPackageNames.forEach(function(pkgName) {
    map['@angular/'+pkgName] = 'https://npmcdn.com/@angular/' + pkgName + ngVer;
  });

  // Add package entries for angular packages
  ngPackageNames.forEach(function(pkgName) {

    // Bundled (~40 requests):
    packages['@angular/'+pkgName] = { main: '/bundles/' + pkgName + '.umd.js', defaultExtension: 'js' };

    // Individual files (~300 requests):
    //packages['@angular/'+pkgName] = { main: 'index.js', defaultExtension: 'js' };
  });

  // No umd for router yet
  packages['@angular/router'] = { main: 'index.js', defaultExtension: 'js' };

  // Forms not on rc yet
  packages['@angular/forms'] = { main: 'index.js', defaultExtension: 'js' };

  // Temporarily until we update the guides
  packages['@angular/router-deprecated'] = { main: '/bundles/router-deprecated' + '.umd.js', defaultExtension: 'js' };

  var config = {
    // DEMO ONLY! REAL CODE SHOULD NOT TRANSPILE IN THE BROWSER
    transpiler: 'ts',
    typescriptOptions: {
      tsconfig: true
    },
    meta: {
      'typescript': {
        "exports": "ts"
      }
    },
    map: map,
    packages: packages
  };

  System.config(config);

})(this);

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": true,
    "suppressImplicitAnyIndexErrors": true
  }
}

<google-search></google-search>

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { JsonpModule } from '@angular/http';
import { ReactiveFormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
import { GoogleSearchComponent } from './google-search.component'
import { GoogleService } from './google.service';

@NgModule({
  imports: [BrowserModule, JsonpModule, ReactiveFormsModule],
  declarations: [AppComponent, GoogleSearchComponent],
  providers: [GoogleService],
  bootstrap: [AppComponent]
})
export class AppModule {}

import { Component } from '@angular/core';
import { FormControl } from '@angular/forms';
import { GoogleService } from './google.service';
import { GooglePlace } from './google-place';

@Component({
  selector: 'google-search',
  template: `
    <div>
      <h2>Google Search</h2>
      <input type="text" [formControl]="term">
      <ul>
        <li *ngFor="let item of items | async">{{item.description}}</li>
      </ul>
    </div>  
  `
})
export class GoogleSearchComponent {

  items: Observable<Array<GooglePlace>>;
  term = new FormControl();
  
  constructor(private googleService: GoogleService) {}
  
  ngOnInit() {
    this.items = this.term.valueChanges
                 .debounceTime(400)
                 .distinctUntilChanged()
                 .switchMap(term => this.googleService.search(term));
  }
}

import { Injectable } from '@angular/core';
import { GooglePlace } from './google-place';
import { Observable } from 'rxjs/Observable';

declare var google: any;

@Injectable()
export class GoogleService {
  
  search(term: string) {
    return new Observable<GooglePlace[]>(observer => {
      let result: GooglePlace[] = [];
      let displaySuggestions = function(predictions: any, status: string) {
        if (status != google.maps.places.PlacesServiceStatus.OK) {
          alert(status);
          return;
        }
        predictions.forEach(function(prediction: any) {
          result.push(new GooglePlace(prediction.place_id, prediction.description));
        });
        observer.next(result);
        observer.complete();
      };
      if (term) {
        let service = new google.maps.places.AutocompleteService();
        service.getQueryPredictions({ input: term }, displaySuggestions);
      }
    });
  }
}

export class GooglePlace {
  constructor(public id: string, // eg: "691b237b0322f28988f3ce03e321ff72a12167fd"
              public description: string // eg: "Paris, France"
  ) {}
}