Random question, Is there a way to stop

CacheAndNetwork

from emitting 2 values when the cache value and network value are the same?

If the items are equal, you could do

.distinctUntilChanged

on the flow itself. Don’t know if there’s something that can be done on the apollo-kotlin side though for this, or if something should be done there.

That was a good idea, but when I tried it with

.distinctUntilChanged { prev, current ->
    prev.data?.equals(current.data)
}

it was always coming up false

So you said that your values are the same and you don’t want to re-emit. Yet the

equals

method returns false for them. So either • They are not actually the same • Their equals method is somehow broken Have you checked why this returns false? Have you debugged and made sure those two objects are in fact the exact same data? Try something like that and if it still doesn’t work we can maybe figure out what’s going wrong. Also as a side note, where are you applying this

distinctUntilChanged

? Showing some more code may help in case there’s some small mistake somewhere

Yeah I have checked with the debugger and they are the exact same data. Whats really weird is doing

prev.data.toString() == current.data.toString()

makes it return

true

then.

apolloClient.query(query)
    .fetchPolicy(CacheAndNetwork)
    .watch()
    .distinctUntilChanged { prev, current ->
        prev.data.toString() == current.data.toString()
    }
    .collect { response ->
        //....
    }
}.catch {
    //....
}

But in the debugger, doing .equals also returns

false

I suppose right? Even though their

toStrings()

return true. This may mean that their

toString()

is not really printing out everything, and that thing which is not printed out is different between them. Other than that, I can’t imagine how else this could be failing. Remind me, are those generated classes all

data

classes, or do they have their

equals

methods manually generated somehow?

Correct, even in the debugger doing the equal is false. I just checked that the toString length matches the length of the network response payload from the network profiler. All of the generated classes are Data classes, but I don't see any equal() in the generated apollo types

Can you try doing the same but with a smaller object? One that you can check with your own eyes to see if there's something different? This object looks way too big to check manually

All the time I was doing it, I was taking the raw data from the debugger and sticking it in a online diff checker

Heh so it was something to do with data classes 😄 You could also implement

equals

yourself properly instead of converting it into a data class if you don’t need that. But so glad to help you, very happy that it now works 🎉