e-book

purchase-contract.effects.ts

abortContract$ = createEffect(
() =>
  this.actions$.pipe(
    ofType(PurchaseContractActions.abortSelectedPurchaseContract),
    withLatestFrom(
      this.store$.pipe(select(fromStore.getSelectedPurchaseContract))),
    switchMap(([action, contract]) => {

      const dialogConfig = new MatDialogConfig();
      dialogConfig.width = '420px';
      dialogConfig.disableClose = true;
      dialogConfig.autoFocus = true;
      dialogConfig.data = {
        title: 'Confirm Abort',
        content: `Are you sure you want to deactivate contract: 
                                      ${contract.productKey}?`,
        output: contract.contractAddress
      };

      const dialogRef = 
            this.dialog.open(ConfirmDialogComponent, dialogConfig);
      return dialogRef.afterClosed();
    }),
    filter(result => !!result),
    exhaustMap(result => concat(

      of(SpinnerActions.show()),
      this.purchaseSrv.abortPurchaseContract(result).pipe(
        tap(address =>
            console.log(`Successfully canceled contract: ${address} `)),
        concatMapTo(
          [PurchaseContractActions.abortSelectedPurchaseContractSuccess(),
          Web3ProviderActions.getBalance()]
        ),
        catchError((err: Error) =>
          of(this.handleError(err), SpinnerActions.hide(), 
             Web3ProviderActions.getBalance())
        )
      ),
      of(SpinnerActions.hide()),
    ))

  ));