How to instanciate class which need Dependancy Injection
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0
I m using Angular 6.1.1 and I've a class model which need an injected service variable.
Is there any way to instanciate my class without providing any DI ?
Maybe, i'm doing that in the wrong way, how to well used angular with this kind of use case.
Thanks in advance
The goal is to achieve this works with well injectedService in the class
@Injectable(
providedIn: 'root'
)
export class AuthenticationService
public User : User = new User();
constructor()
export class Item
public UserCreator: User;
// Other properties
constructor(private authenticationService : AuthenticationService)
this.UserCreator = this.authenticationService.User;
export class ExampleComponent
constructor()
const newItem : Item = new Item();
//Doesn't compiled because need authenticationService argument
//Is there any way to ask Angular to instanciate this class with auto resolving the injection of the authenticationService ?
angular dependency-injection asked Nov 15 '18 at 10:00
rdeclardecla
6017
|
show 1 more comment
0
I m using Angular 6.1.1 and I've a class model which need an injected service variable.
Is there any way to instanciate my class without providing any DI ?
Maybe, i'm doing that in the wrong way, how to well used angular with this kind of use case.
Thanks in advance
The goal is to achieve this works with well injectedService in the class
@Injectable(
providedIn: 'root'
)
export class AuthenticationService
public User : User = new User();
constructor()
export class Item
public UserCreator: User;
// Other properties
constructor(private authenticationService : AuthenticationService)
this.UserCreator = this.authenticationService.User;
export class ExampleComponent
constructor()
const newItem : Item = new Item();
//Doesn't compiled because need authenticationService argument
//Is there any way to ask Angular to instanciate this class with auto resolving the injection of the authenticationService ?
asked Nov 15 '18 at 10:00
rdeclardecla
6017
If it's an item that you will create, why does it have @Injectable ? it should be on service ?
– Alann
Nov 15 '18 at 10:05
to make the injection works for the example of course, i want to remove it
– rdecla
Nov 15 '18 at 10:09
providedIn: 'root'means it is provided in the root module, making it a singleton. Why would you create a new instance of that service ?
– trichetriche
Nov 15 '18 at 10:17
I recreate my example to be more comprehensible
– rdecla
Nov 15 '18 at 10:45
create a stackblitz to show us what you want to do
– Alann
Nov 15 '18 at 12:54
|
show 1 more comment
0
0
0
I m using Angular 6.1.1 and I've a class model which need an injected service variable.
Is there any way to instanciate my class without providing any DI ?
Maybe, i'm doing that in the wrong way, how to well used angular with this kind of use case.
Thanks in advance
The goal is to achieve this works with well injectedService in the class
@Injectable(
providedIn: 'root'
)
export class AuthenticationService
public User : User = new User();
constructor()
export class Item
public UserCreator: User;
// Other properties
constructor(private authenticationService : AuthenticationService)
this.UserCreator = this.authenticationService.User;
export class ExampleComponent
constructor()
const newItem : Item = new Item();
//Doesn't compiled because need authenticationService argument
//Is there any way to ask Angular to instanciate this class with auto resolving the injection of the authenticationService ?
asked Nov 15 '18 at 10:00
rdeclardecla
6017
I m using Angular 6.1.1 and I've a class model which need an injected service variable.
Is there any way to instanciate my class without providing any DI ?
Maybe, i'm doing that in the wrong way, how to well used angular with this kind of use case.
Thanks in advance
The goal is to achieve this works with well injectedService in the class
@Injectable(
providedIn: 'root'
)
export class AuthenticationService
public User : User = new User();
constructor()
export class Item
public UserCreator: User;
// Other properties
constructor(private authenticationService : AuthenticationService)
this.UserCreator = this.authenticationService.User;
export class ExampleComponent
constructor()
const newItem : Item = new Item();
//Doesn't compiled because need authenticationService argument
//Is there any way to ask Angular to instanciate this class with auto resolving the injection of the authenticationService ?
asked Nov 15 '18 at 10:00
rdeclardecla
6017
asked Nov 15 '18 at 10:00
rdeclardecla
6017
edited Nov 15 '18 at 10:43
rdecla
asked Nov 15 '18 at 10:00
rdeclardecla
6017
asked Nov 15 '18 at 10:00
rdeclardecla
6017
asked Nov 15 '18 at 10:00
rdeclardecla
6017
6017
If it's an item that you will create, why does it have @Injectable ? it should be on service ?
– Alann
Nov 15 '18 at 10:05
to make the injection works for the example of course, i want to remove it
– rdecla
Nov 15 '18 at 10:09
providedIn: 'root'means it is provided in the root module, making it a singleton. Why would you create a new instance of that service ?
– trichetriche
Nov 15 '18 at 10:17
I recreate my example to be more comprehensible
– rdecla
Nov 15 '18 at 10:45
create a stackblitz to show us what you want to do
– Alann
Nov 15 '18 at 12:54
|
show 1 more comment
If it's an item that you will create, why does it have @Injectable ? it should be on service ?
– Alann
Nov 15 '18 at 10:05
to make the injection works for the example of course, i want to remove it
– rdecla
Nov 15 '18 at 10:09
providedIn: 'root'means it is provided in the root module, making it a singleton. Why would you create a new instance of that service ?
– trichetriche
Nov 15 '18 at 10:17
I recreate my example to be more comprehensible
– rdecla
Nov 15 '18 at 10:45
create a stackblitz to show us what you want to do
– Alann
Nov 15 '18 at 12:54
If it's an item that you will create, why does it have @Injectable ? it should be on service ?
– Alann
Nov 15 '18 at 10:05
If it's an item that you will create, why does it have @Injectable ? it should be on service ?
– Alann
Nov 15 '18 at 10:05
to make the injection works for the example of course, i want to remove it
– rdecla
Nov 15 '18 at 10:09
to make the injection works for the example of course, i want to remove it
– rdecla
Nov 15 '18 at 10:09
providedIn: 'root' means it is provided in the root module, making it a singleton. Why would you create a new instance of that service ?– trichetriche
Nov 15 '18 at 10:17
providedIn: 'root' means it is provided in the root module, making it a singleton. Why would you create a new instance of that service ?– trichetriche
Nov 15 '18 at 10:17
I recreate my example to be more comprehensible
– rdecla
Nov 15 '18 at 10:45
I recreate my example to be more comprehensible
– rdecla
Nov 15 '18 at 10:45
create a stackblitz to show us what you want to do
– Alann
Nov 15 '18 at 12:54
create a stackblitz to show us what you want to do
– Alann
Nov 15 '18 at 12:54
|
show 1 more comment
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If it's an item that you will create, why does it have @Injectable ? it should be on service ?
– Alann
Nov 15 '18 at 10:05
to make the injection works for the example of course, i want to remove it
– rdecla
Nov 15 '18 at 10:09
providedIn: 'root'means it is provided in the root module, making it a singleton. Why would you create a new instance of that service ?– trichetriche
Nov 15 '18 at 10:17
I recreate my example to be more comprehensible
– rdecla
Nov 15 '18 at 10:45
create a stackblitz to show us what you want to do
– Alann
Nov 15 '18 at 12:54