pass argument from subscribe block or error block to 'finally' block

Question

Is there a way to pass argument from subscribe block or error block to 'finally' block without using this keyword. My attempt below which does not work

this.service.create()
    .pipe(first())
    .subscribe (
    (resp) => {
        let argumentToFinally = '';
        if (!!resp.taskInfo) {
            argumentToFinally = this.showError(resp.taskInfo);
        } else {
            close();
            // if else block, 'argumentToFinally' is still ''
        }
    },
    (error) => {
        this.isCallingApi = false;
        argumentToFinally = this.showError('create', undefined, error);
    },
    (argumentToFinally) => {
        close(argumentToFinally)
    });

close(argumentOfFinally?: any) {
    if (!!argumentOfFinally) {
        ..
    }
    this.closeWizard();
}

score 1 · Accepted Answer · answered Jun 12 '21 at 07:17

You can only use the global variable (this.variableName) in the finally block as the finally block doesn't accept any argument.
The finally block will not be called after the error block because the subscription is canceled when an error occurs.

For more info check -> Using observables to pass values

pass argument from subscribe block or error block to 'finally' block

1 Answers1