The httpClient post request does not successfully trigger in an angular event when the windows.unload event is activated

Is there a way to send a post request from my client to the server when the user closes the tab or browser window? I have tried using the 'windows.unload'or 'windows.beforeunload' event, but the call doesn't seem to be successful as the window closes before receiving a response. Here is the code snippet I have tried:

This is the 'onbeforeUnload' event:

window.onbeforeunload = ()=>{

  this.store.dispatch<any>(this.mystore.UnLock());
}

This is the function in my Store:

UnLock() {
    return (dispatch, getState) => {
      dispatch(this.resetTimer());
      return this.dataService.Locks('/unlock').subscribe(
        (data: any) => {},
        (err: HttpErrorResponse) => {
          if (err.error instanceof Error) {
            dispatch(this.errormsg('Client-side error occured.'));
            console.log('Client-side error occured.');
          } 
        }
      );
    };
  }

Here is my data service function:

Locks(url: string): Observable<any> {
    return this.httpclient.post(url, {
      headers: _headers
    });
  }

The issue I am facing is that my browser window closes before getting a response from the server. How can I resolve this problem?

Answer №1

Here is a suggestion:

To implement this functionality, follow these steps:

const handleUnload = () => {
    // Add your code here to dispatch an action to unlock the store
};

export class AppComponent {  
  constructor() {
    window.onbeforeunload = (e) => {
        this.store.dispatch<any>(this.mystore.UnLock());
    };
  }
}

Answer №2

Incorporate Angular guards when working with Angular for efficient implementation.

To tackle this situation, the recommended approach is to utilize

canDeactive

guard in Angular framework.

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