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@robertpenner
Forked from johnlindquist/config.js
Created March 17, 2016 04:32
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angular 2 with sagas and reducers
System.config({
//use typescript for compilation
transpiler: 'typescript',
//typescript compiler options
typescriptOptions: {
emitDecoratorMetadata: true
},
//map tells the System loader where to look for things
map: {
app: "./src",
'@ngrx': 'https://npmcdn.com/@ngrx',
'store-saga': 'https://npmcdn.com/store-saga@1.0.0-beta.4',
'rxjs': 'https://npmcdn.com/rxjs@5.0.0-beta.2'
},
//packages defines our app package
packages: {
app: {
main: './main.ts',
defaultExtension: 'ts'
},
'@ngrx/store': {
main: 'dist/index.js',
defaultExtension: 'js'
},
'@ngrx/devtools': {
main: 'dist/index.js',
defaultExtension: 'js'
},
'store-saga': {
main: 'index.js',
defaultExtension: 'js'
},
'rxjs': {
main: 'index.js',
defaultExtension: 'js'
}
}
});
<!DOCTYPE html>
<html>
<head>
<title>angular2 playground</title>
<script src="https://code.angularjs.org/2.0.0-beta.9/angular2-polyfills.js"></script>
<script src="https://code.angularjs.org/tools/system.js"></script>
<script src="https://code.angularjs.org/tools/typescript.js"></script>
<script src="config.js"></script>
<script src="https://code.angularjs.org/2.0.0-beta.9/angular2.dev.js"></script>
<script src="https://code.angularjs.org/2.0.0-beta.9/http.dev.js"></script>
<script src="https://code.angularjs.org/2.0.0-beta.9/router.dev.js"></script>
<script>
System.import('app')
.catch(console.error.bind(console));
</script>
</head>
<body>
<app></app>
</body>
</html>
import 'rxjs/Rx';
import {HTTP_PROVIDERS, Http} from 'angular2/http';
import {Component} from 'angular2/core';
import {bootstrap} from 'angular2/platform/browser';
import {Observable} from 'rxjs/Rx';
import {installSagaMiddleware, createSaga, whenAction} from 'store-saga';
import {provideStore} from '@ngrx/store';
import {Store} from '@ngrx/store/dist/store';
const LOAD = 'LOAD';
const LOADED = 'LOADED';
@Component({
selector: 'app',
template: `<div>
<button (click)="load('rxjs')">RxJS</button>
<button (click)="load('angular')">Angular</button>
Custom search: <input #i type="text" (keyup.enter)="load(i.value)">
<button (click)="load(i.value)">Custom</button>
<ul *ngFor="#item of (results | async)">
{{item.title}}
</ul>
</div>`
})
export class App {
results = this.store.select('questions');
load(payload){
this.store.dispatch({type: LOAD, payload});
};
constructor(private store:Store) {}
}
//reducers
const questions = (state = [], {type, payload})=> {
switch (type) {
case LOADED:
return payload.items;
default:
return state;
}
};
//sagas
const load = createSaga((http:Http)=> {
const url$ = Observable.of('https://api.stackexchange.com/2.2/search?site=stackoverflow');
return saga$ => saga$
.filter(whenAction(LOAD))
.combineLatest(url$, ({action:{payload}}, url)=> `${url}&intitle=${payload}`)
.switchMap(url => http.get(url))
.map(res => ({
type: LOADED,
payload: res.json()
})
)
}, [Http]);
bootstrap(App, [
HTTP_PROVIDERS,
provideStore({questions}),
installSagaMiddleware(load)
]);
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