在packages.json中配置angular2 http

Question

I am trying to write a very very simple app in angular 2 I need to read JSON file and therefore need angular2/http

Applied npm init to build the packages.json file:

{
  "name": "front-end",
  "version": "1.0.0",
  "description": " blah blah",
  "main": "gulpfile.js",
  "dependencies": {
    "connect": "^3.4.1",
    "del": "^1.2.1",
    "angular2": "2.0.0-beta.16",
    "gulp": "^3.9.1",
    "gulp-typescript": "^2.13.0",
    "open": "^0.0.5",
    "reflect-metadata": "^0.1.2",
    "serve-static": "^1.10.2",
    "systemjs": "^0.19.27",
    "zone.js": "^0.6.12",
    "rxjs": "5.0.0-beta.2"
  },
  "devDependencies": {},
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "www.hello.com"
  },
  "author": "kpmg-dna-fs-de",
  "license": "ISC"
}

I get the following:

Error: Error: XHR error (404 Not Found) loading http://localhost:9000/angular2/http.js (…)

from angula2.polyfills. Not sure how to proceed. The auth0 demo here shows no need to explicitly mention angular2/http in the dependencies.

What is the difference with the use of:

"@angular/common":  "2.0.0-rc.1",
"@angular/compiler":  "2.0.0-rc.1",
"@angular/core":  "2.0.0-rc.1",
"@angular/http":  "2.0.0-rc.1",
"@angular/platform-browser":  "2.0.0-rc.1",
"@angular/platform-browser-dynamic":  "2.0.0-rc.1",
"@angular/router":  "2.0.0-rc.1",
"@angular/router-deprecated":  "2.0.0-rc.1",
"@angular/upgrade":  "2.0.0-rc.1",

as in here I mean: I get the version number, but why "angular2": "2.0.0-rc.1" not work with npm install ?

Answer 1

Please look into Angular CLI way of working with Angular 2 apps, it gives well structured way of development.

Angular 2 modules are loaded using system.js as in quickstart you mentioned or if you CLI.

How ever from your questions i would draw below points.

1. Want to build Angular 2 app -- either follow quickstart link or better use Angular CLI .

2. Want to use HTTP way to access data -- use angular2-in-memory-web-api, using this you can load data from JSON file & pass this data to UI using Angular 2 HTTP concept.