How to get current timestamp of firebase server in milliseconds?

Question

I wanted to get firebase current timestamp, not able to find a way to get that. I want to save child as shown in the image. And for that I\'ve to get timestamp and get the d

Answer 1

On Android I did it this way

index.js / serverside

const functions = require('firebase-functions'); 
exports.stamp = functions.https.onCall(() => {
       var d = new Date();
       console.log('TimeStamp_now : '+d.getTime());
       return { timeStamp: d.getTime() };          
   });

someclass.kt / clientside

lateinit var functions: FirebaseFunctions
var ret :Long = 0

FirebaseApp.initializeApp(this)
functions = FirebaseFunctions.getInstance()


val returnFC = functions.getHttpsCallable("stamp").call()
    returnFC.continueWith { task ->
    val resultFC = task.result?.data as Map
        resultFC["timeStamp"] as Long
    ret = "${resultFC["timeStamp"]}".toLong()
    val cal = Calendar.getInstance()
        cal.timeInMillis = "$ret".toLong()
    var date = DateFormat.format("dd-MM-yyyy", cal).toString()
    Log.d("current date:", date)
    Log.d("timeStamp_from_function :", "$ret")
    resultFC
}
    returnFC.addOnSuccessListener {
        Log.d("OnSuccessListener :", "success")
}    
    returnFC.addOnFailureListener {
        Log.d("OnFailureListener:", "failure")
}

I got the return and arrived at: TimestampConvert look great