I'm currently trying to use a service to pass a string. However, in mine AppComponentI get the undefinedService.
This is mistake:
Error: (SystemJS) XHR error (404 Not Found) loading http:
patchProperty/desc.set/wrapFn@http:
ZoneDelegate.prototype.invokeTask@http:
Zone.prototype.runTask@http:
ZoneTask/this.invoke@http:
Error loading http:
Stack trace:
(SystemJS) XHR error (404 Not Found) loading http:
patchProperty/desc.set/wrapFn@http:
ZoneDelegate.prototype.invokeTask@http:
Zone.prototype.runTask@http:
ZoneTask/this.invoke@http:
Error loading http:
main.service.ts
import { Injectable } from '@angular/core';
import { Http, Headers, Response } from '@angular/http';
import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/toPromise';
import 'rxjs/add/operator/map';
@Injectable()
export class MainService {
private projectURL = 'http://localhost:64895/api/Process/ProcessFile';
private headers = new Headers({'Content-Type': 'application/json; charset=utf-8'});
constructor(private http: Http) { }
public passFileUrl = (filePath: string): Observable<number> => {
var json = JSON.stringify(filePath);
return this.http.post(this.projectURL, json, {headers: this.headers})
.map((response: Response) => <number>response.json());
}
}
app.component.ts
import { Component } from '@angular/core';
import { MainService } from '../services/main.service';
@Component({
selector: 'converter-utility',
templateUrl: './app/views/main.component.html',
providers: [MainService],
styleUrls: ['./app/views/css/main.component.css']
})
export class AppComponent {
private workableFile: string;
constructor(
private mainService: MainService
) { }
doProcess() {
this.mainService.passFileUrl(this.workableFile)
.subscribe((data: any) => {
console.log(data);
});
}
}
app.module.ts
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { AppComponent } from './app.component';
import { MainService } from '../services/main.service';
@NgModule({
imports: [
BrowserModule,
FormsModule
],
declarations: [
AppComponent
],
providers: [
MainService,
],
bootstrap: [ AppComponent ]
})
export class AppModule { }
systemjs.config.js
/**
* System configuration for Angular samples
* Adjust as necessary for your application needs.
*/
(function (global) {
System.config({
paths: {
// paths serve as alias
'npm:': 'node_modules/'
},
// map tells the System loader where to look for things
map: {
// our app is within the app folder
app: 'app',
// angular bundles
'@angular/core': 'npm:@angular/core/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
'@angular/http': 'npm:@angular/http/bundles/http.umd.js',
'@angular/router': 'npm:@angular/router/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
'@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
// other libraries
'rxjs': 'npm:rxjs',
'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js'
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
app: {
main: './main.js',
defaultExtension: 'js'
},
rxjs: {
defaultExtension: 'js'
}
}
});
})(this);
package.json
{
"name": "angular-quickstart",
"version": "1.0.0",
"scripts": {
"start": "tsc && concurrently \"tsc -w\" \"lite-server\" ",
"lite": "lite-server",
"tsc": "tsc",
"tsc:w": "tsc -w"
},
"licenses": [
{
"type": "MIT",
"url": "https://github.com/angular/angular.io/blob/master/LICENSE"
}
],
"dependencies": {
"@angular/common": "~2.1.1",
"@angular/compiler": "~2.1.1",
"@angular/core": "~2.1.1",
"@angular/forms": "~2.1.1",
"@angular/http": "~2.1.1",
"@angular/platform-browser": "~2.1.1",
"@angular/platform-browser-dynamic": "~2.1.1",
"@angular/router": "~3.1.1",
"@angular/upgrade": "~2.1.1",
"angular-in-memory-web-api": "~0.1.13",
"core-js": "^2.4.1",
"reflect-metadata": "^0.1.8",
"rxjs": "5.0.0-beta.12",
"systemjs": "0.19.39",
"zone.js": "^0.6.25"
},
"devDependencies": {
"@types/core-js": "^0.9.34",
"@types/node": "^6.0.45",
"concurrently": "^3.0.0",
"lite-server": "^2.2.2",
"typescript": "^2.0.3"
}
}
Application structure
app
app.component.ts
app.module.ts
main.ts
node_modules ...
services
main.service.ts
index.html
package.json
styles.css
systemjs.config.js
tsconfig.json
I have tried several solutions like this without any success. I understand that there are many similar questions (which could classify this question as duplicated), but none of them helped me fix this. Not to mention the fact that I have been using Angular 2 for several days, so there may be a problem between the chair and the keyboard. ☺ I appreciate if you help me give some guidance.
Thank you very much in advance!