<https://stackoverflow.com/questions/73025765/kotl...

# stackoverflow

[user]

[Kotlin][Firestore]Turn a list of data objects into a hash map, send it to firestore, retrieve the data and turn it back into a list of objects again
Bloody beginner in Kotlin/Android here and trying his best.
Problem:
I am trying to push a list of data objects into firebase and managed to pull that off with the following function:
fun createData(collectionName:String){
//Create Data here
val docData: MutableMap = HashMap()
docData["data"] = Arrays.asList(
JournalEntry("Title 1", 0, 0),
JournalEntry("Title 2", 0, 1),
JournalEntry("Title 3", 0, 0)
)

db.collection(collectionName)...