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I have Flow1 returns data that Flow2 needs, if Flow1 fails then I want Flow2 to basically rewrap that error and emit it.
If Flow1 is successful I want Flow2 to return a room DB Flow.

flow1.combine(flow2), but obviously there is no way to pass the value from flow1 to flow2
I tried
flow1.map{x
    flow2Fun(x)
}

where flow2Fun returns a Flow&lt;A&gt;, but the map gives a result of Flow&lt;Flow&lt;A&gt;&gt;.

What is the best way to do this, since flow1 can change during life of app

I suggest to use `.transform`
```flow1.transform { result1 ->
    emitAll(flow2(result1))
} ```

<https://kotlinlang.org/api/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines.flow/transform.html>

you can either use emitAll to re-emit all results from flow2 or do a conditional emit based on flow1 and flow2 result