How do I run N network calls parallel-ly and wait ...

# coroutines

[Sudhir Singh Khanger]

How do I run N network calls parallel-ly and wait for their response?

Data {1, 2, 3, ... N} -> Response { Response1, Response2, Response3...ResponseN}

I want to run the tasks parallel-ly and wait for their response separately without losing which response belongs to which data param.

[bezrukov]

val dataList = listOf(data1, data2, ... dataN)
coroutineScope {
    val responses = dataList.map { data -> 
        async { 
          performRequest(data)
        }
    }.awaitAll()
}

in this case it will wait for all responses. If you want to handle responses asynchronously as well do

val dataList = listOf(data1, data2, ... dataN)
coroutineScope { // coroutineScope suspends until all children complete
    dataList.forEach { data -> 
        async { 
          val response = performRequest()
          // handle data & response
        }
    }
}

[Sudhir Singh Khanger]

Thanks. Working.