```I am new to kotlin flows and trying to add Flows to one of my project and facing an issue while c...

# coroutines

[Koya Sivaji]

I am new to kotlin flows and trying to add Flows to one of my project and facing an issue while converting list of objects of one type to another as shown below. Basically, am not sure which operator to be used for this.

//Repository - method return type is  Flow<List<HistoryEvent>>
fun getHistoryEvents(): Flow<List<HistoryEvent>>

//ViewModel - calling repository method and trying to convert data to List<AccessoryEvent>

val accessoryEvents : LiveData<List<AccessoryEvent>>=  liveData{
                                                      repository.getHistoryEvents()
                                                       
                                                  // what operator to be used to convert from List<HistoryEvent> to List<AccessoryEvent>
                                                           
                                                        .collect()
                                                      }

[octylFractal]

.map {}?

[Koya Sivaji]

I tried like below

val eventHistory: LiveData<List<AccessoryEventType>> = 
        liveData {
            deviceRepository.getDeviceEventHistoryFor("abcd")
                .map { historyEvents ->
                    emit((historyEvents.map { AccessoryEventType.getEventType(it) }))
                }
                .collect()
        }

after this, all elements in the returned list are same and equals to the last emitted element. Am not sure what I am doing wrong

[Koya Sivaji]

Basically I want to map each historyEvent to AccessoryEvent

[octylFractal]

I don't really know how liveData works, but it seems wrong to have side-effects in a map operation -- why not do:
.map { hE -> hE.map { ... } }.collect { emit(it) }?

[octylFractal]

I don't think it will fundamentally change anything though

[octylFractal]

but to me, this looks correct for mapping each event, anything wrong might be because of getEventType or what events are actually in getHistoryEvents()

[Koya Sivaji]

ok

[Koya Sivaji]

still , no luck. am not sure what I am doing wrong