Is there a way to activate components and actions depending on user roles?

Question

Is there a way to activate components and actions depending on user roles?

Currently, I am developing a frontend application for a project using Angular 4. From the backend, I receive some POST actions that are listed in a file called actions.response.ts:

actions.response.ts

export class actions{
          AGREEMENTS_VIEW :string;
          PROSPECTS_VIEW :string;
          AGREEMENTS_INSERT_UPDATE :string;
          PRODUCTS_INSERT_UPDATE :string;
          PROSPECTS_INSERT_UPDATE :string;
          DOCUMENTS_VIEW :string;
          DOCUMENTS_INSERT_UPDATE :string;
}

My goal is to enable or disable components, inputs, selects, or buttons based on each action (agreements_view, prospects_view, etc). How can I achieve this?

HTTP POST request:

securityActions(): Observable<actions> {
    return this.http.post<actions>(
        `${this.ENDPOINT}/security-actions`,
        null,
    );
}

How I call the POST request within the component:

  securityActions() {
    this.securityService.securityActions().subscribe(
      (res: actions) => {
        this.actionsSecurity = res;
        console.log(res);

      },
      errors => {
        Utils.notifyErrors(errors, this.notificationsService);
      });
  }

I apologize if my question seems basic, but I am new to Angular and feeling a bit overwhelmed!

angular typescript post roles

Answer 1

Answer №1

For the current project I'm working on, we developed a custom permission directive. This directive takes specified conditions and removes tags from the view if they are not met.

Here is an example snippet of the directive:

export class HasPermissionDirective implements OnInit, OnDestroy {
  private permissionSub: Subscription;

  constructor(private templateRef: TemplateRef<any>,
              private viewContainer: ViewContainerRef,
              private authorizationService: AuthorizationService) {
  }

  ngOnInit(): void {
    this.applyPermission();
  }

  @Input()
  set hasPermission(checkedPermissions: Permission[]) {
    // Set the permissions for the directive here
  }

  private applyPermission(): void {
    this.permissionSub = this.authorizationService.checkPermission(/* permissions to be checked */)
      .subscribe(authorized => {
        if (authorized) {
          this.viewContainer.createEmbeddedView(this.templateRef);
        } else {
          this.viewContainer.clear();
        }
      });
  }

  ngOnDestroy(): void {
    this.permissionSub.unsubscribe();
  }
}

Answer 2

For the current project I'm working on, we developed a custom permission directive. This directive takes specified conditions and removes tags from the view if they are not met.

Here is an example snippet of the directive:

export class HasPermissionDirective implements OnInit, OnDestroy {
  private permissionSub: Subscription;

  constructor(private templateRef: TemplateRef<any>,
              private viewContainer: ViewContainerRef,
              private authorizationService: AuthorizationService) {
  }

  ngOnInit(): void {
    this.applyPermission();
  }

  @Input()
  set hasPermission(checkedPermissions: Permission[]) {
    // Set the permissions for the directive here
  }

  private applyPermission(): void {
    this.permissionSub = this.authorizationService.checkPermission(/* permissions to be checked */)
      .subscribe(authorized => {
        if (authorized) {
          this.viewContainer.createEmbeddedView(this.templateRef);
        } else {
          this.viewContainer.clear();
        }
      });
  }

  ngOnDestroy(): void {
    this.permissionSub.unsubscribe();
  }
}

Answer 3

Answer №2

To my understanding, it seems like you are looking to control the activation or deactivation of access to a component or button based on certain conditions. This could be related to factors such as user login status, form validation, etc. If you need to deactivate a button, you can achieve this using the [disabled] directive:

<button class="btn btn-lg btn-primary btn-block" type="submit" [disabled]="!registerForm.valid">
    Submit
</button>

For instance, if the form is not valid, the data submission button will be disabled.

For components, you can handle this within routes. You would first need to create a service that implements the CanActivate interface. Here's an example for authentication:

canActivate(): Observable<boolean> {
    return Observable.from(this.user)
      .take(1)
      .map(state => !!state)
      .do(authenticated => {
        if (!authenticated) {
            this.router.navigate(['/login']);
        }
    });
}

Then, in your routes files, specify the rules accordingly. For example, restricting access to the dashboard only when authenticated:

{ path: 'dashboard', component: DashboardComponent, canActivate: [theServiceYouCreated]}

I hope this explanation serves as a helpful guide. Feel free to reach out if you have any questions or if this doesn't align with what you're seeking.

Answer 4

To my understanding, it seems like you are looking to control the activation or deactivation of access to a component or button based on certain conditions. This could be related to factors such as user login status, form validation, etc. If you need to deactivate a button, you can achieve this using the [disabled] directive:

<button class="btn btn-lg btn-primary btn-block" type="submit" [disabled]="!registerForm.valid">
    Submit
</button>

For instance, if the form is not valid, the data submission button will be disabled.

For components, you can handle this within routes. You would first need to create a service that implements the CanActivate interface. Here's an example for authentication:

canActivate(): Observable<boolean> {
    return Observable.from(this.user)
      .take(1)
      .map(state => !!state)
      .do(authenticated => {
        if (!authenticated) {
            this.router.navigate(['/login']);
        }
    });
}

Then, in your routes files, specify the rules accordingly. For example, restricting access to the dashboard only when authenticated:

{ path: 'dashboard', component: DashboardComponent, canActivate: [theServiceYouCreated]}

I hope this explanation serves as a helpful guide. Feel free to reach out if you have any questions or if this doesn't align with what you're seeking.

Is there a way to activate components and actions depending on user roles?

Answer №1

Answer №2

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