how to force call flow with ForAll

[daner]

I have a test Power App that takes a number and a list of attachments (I copied the component from a form). The app calls a flow that receives this number and the list of attachments, and sends them to a SharePoint list. The flow works perfectly when everything is working, but I would like to be able to see the name of the file that hasn't been uploaded if the upload fails.

I have set up the flow to return values to the application. The issue is that when I try to make the flow fail, by not passing at least one of the two required parameters, the application is unable to call the flow and I don't understand why. All these formulas are in the "onselect" of a button, so if I understand correctly, every time I press the button all these functions should be followed anyway. Ideally, I would like the button to call the flow, even if there are missing parameters, and for the application not to freeze, but for the flow to return the value related to the failure

the code that call the flow and send the values is : 

ClearCollect(results,
    ForAll(loadFiles_1.Attachments,
        Collect(
            ReturnedResult,
            imgTolist.Run(
                {
                    number: idProject_1,
                    file: {
                        contentBytes: Value,
                        name: Name
                    }
                }
            )
        )
    )
);

 i am force to use ForAll because i need to call the flow for each file in "loadFiles_2" 

ReturnedResult contains the returnd values of the flow 

[BCBuizer]

Hi @daner ,

In that case I suggest you build in some error handling in your flow to check if the parameters were passed and to return some error value in case they weren't.

[daner]

i think to to that but i need the flow just for now without that kind of controls. 

as can you see in the pic, the app recive only the attachmenen and it crash... i need to force the app call the flow any way, and see the msg error "ko non funziona"

[BCBuizer]

Hi @daner ,

Then perhaps you can use the IfError function to insert a hardcoded record in case the flow fails. It will look something like this:

ClearCollect(results,
    ForAll(loadFiles_1.Attachments,
        Collect(
			IfError(	
				ReturnedResult,
				imgTolist.Run(
					{
						number: idProject_1,
						file: {
							contentBytes: Value,
							name: Name
						}
					}
				),
				{esito: "ko non funziona", errorfile: "ko non funziona"}
			)
        )
    )
);

You may have to play around with the keys in the record since I don't know the schema.

[daner]

actually i fix it in this way : 

If(
    IsBlank(idProject_3.Text),
    Notify(
        "devi inserire numero progetto!",
        NotificationType.Error
    ),
    ForAll(
        loadFiles_3.Attachments,
        Collect(
            ReturnedResult,
            imgTolist4.Run(
                {
                    number: idProject_3,
                    file: {
                        contentBytes: Value,
                        name: Name
                    }
                }
            )
        )
    )
);

but thanks any way for your time bro