Questions tagged [angular2-providers]
52 questions
2
votes
1 answer
Observable BehaviorSubject Service - Singleton and providers
I have a simple component progressBar in order to display (or not) the progress bar.
And a simple observable service.
Here is the service :
import { Injectable } from '@angular/core';
import { Http } from '@angular/http';
import { Observable }…
ByJC
- 213
- 1
- 3
- 9
1
vote
1 answer
Angular9 'No provided for ActivatedRoute'
I'm beginner in Angular 9. I'm following an online video tutorial to excercise on angular, but my code (same of the tutorial) had a problem and I don't know of to figure out.
Actually, tutorial put routing stuffs all inside app.module.ts, but I use…
Giacomo Brunetta
- 1,409
- 3
- 18
- 38
1
vote
1 answer
Angular 8 Lazy Loading. Questions regarding: imports, entryComponents and providers
i have exceeded the 2MB mark a while ago, so i decided to implement Lazy loading to deal with my hefty batches. Therefore I have questions regarding imports, entryComponents and providers. To water all of them down into one question:
What do i…
Yoshy
- 170
- 2
- 14
1
vote
0 answers
Code refactoring, can't reach data
As the title say i would like to refactor my code.
I have a problem when i would like to put the API call in a external provider (if one day i have to use it, i will only import the new .ts file)
, i can't reach the "weather" datas.
Here is my…
Jag Tomal
- 51
- 8
1
vote
0 answers
Multiple service providers using same-named DI parameter (Angular 2)
In my Angular 2 project, I am using 2 different services in a single component. They both have required Injector parameters. The issue I am trying to resolve is that both DI parameters use the same name, but I do not know how to format my component…
Sentient Entities
- 341
- 4
- 11
1
vote
1 answer
Angular: How to globally listen to router events
I want to show a spinner whenever navigation occurs. How can I listen to router events globally so that I can show spinner on NavigationStart and hide it on NavigationEnd whenever routing occurs, like how we do with HttpInterceptor for globally…
karthikaruna
- 3,042
- 7
- 26
- 37
1
vote
2 answers
Using Angular 2+ forRoot pattern to pass callbacks into modules
I have created an Angular Module called DataModule which contains services for accessing my backend through a token-secured HTTP API. On HTTP access control errors such as 401 Unauthorized and 403 Forbidden I want to be able to redirect to /login or…
the-a-train
- 1,123
- 13
- 32
1
vote
1 answer
what is the syntax for using multiple providers in component class?
I need to use an additional service in my component.
It seems I should be able to do it like so
@Component({
selector: 'page-home',
templateUrl: 'home.html',
providers: [firstService, additionalService]
})
but it doesn't work.
Spilot
- 1,495
- 8
- 29
- 55
1
vote
1 answer
why the example of angular-webpack-stater don't state AppState in providers，however state Title which is aslo service
The address of the code is https://github.com/AngularClass/angular2-webpack-starter/blob/master/src/app/home/home.component.ts
import { AppState } from '../app.service';
import { Title } from './title';
import { XLargeDirective } from…
wangd933
- 33
- 5
1
vote
2 answers
How to provide LOCALE_ID from an observable in Angular 2?
In Angular 2, in order to localize date pipe you need to provide LOCALE_ID. I have a service LocaleService that exposes locale$: Observable which implements BehaviorSubject. I don't want to add any state to this service, I want it to…
Ivan Zyranau
- 879
- 2
- 14
- 33
1
vote
1 answer
Ionic 2 / Angular 2 providers cannot be resolved
I am using Ionic 2 and have some problems with providers/injections since version 2.0.0.
The error I keep getting is the following (with different providers, not only this one):
Uncaught Error:
Can't resolve all parameters for…
Sonia
- 41
- 3
1
vote
1 answer
Angular2: How to inject two instances of the same service into multiple components?
Suppose that I have an Angular Service that looks like this:
@Injectable()
export class Clipboard {
constructor(private multiple: Multiple, private di:DI, private injected:Injected, private things: Things){}
// The clipboard has local…
sixtyfootersdude
- 25,859
- 43
- 145
- 213
1
vote
1 answer
Angular2 Dependency Injection: What's the "..." syntax I see before some injected package's name (ie 'providers = [...SomeProvider]')
I'm just getting started in Angular2 and normally injecting providers looks like:
providers : [SomeProvider],
However I have been seeing some packages that include a "..." before the provider name that is being injected like:
providers :…
garrettmac
- 8,417
- 3
- 41
- 60
1
vote
1 answer
Provider changes in angular 2 final version
In angular 2.0.0-rc.1 we have created Provider using new Provider, refer below code snippet
var constAccessor = new Provider(NG_VALUE_ACCESSOR, {
useExisting: forwardRef(() => EJDefaultValueAccessor), multi: true
});
var…
Sridhar Narasimhan
- 2,643
- 2
- 17
- 25
1
vote
1 answer
Angular 2 RC 5 global provider
How can i have a global provider that is initialized just once.
So i have the following provider
@Injectable()
export class ApiRequest {
http: Http;
constructor(@Inject(Http) http) {
console.log('Test');
}
}
And then a shared…
keepwalking
- 2,644
- 6
- 28
- 63