Can any one help how can I send a request in parallel using coroutines for example I am sending a li...

# android

[Freedom]

Can any one help how can I send a request in parallel using coroutines for example I am sending a list of images to the server in parallel or sequentially

[Paul Woitaschek]

images.map { async { send(it) } }.awaitAll()

[Paul Woitaschek]

That's parallel; sequential would be just a images.forEach { send(it) }

[joeykaan]

There is one good thing to take into account though. If sending those does a data call you might have to change the actual thread those async blocks are being executed on. If you read this blog you will see why: https://kotlinexpertise.com/kotlin-coroutines-concurrency/. The async { send(it) } will be concurrently but not necessary in parallel.

[Paul Woitaschek]

@joeykaan Is there a difference between wrapping the whole thing within a withContext(Dispatchers.Default) vs async(Dispatchers.Default) ?

[joeykaan]

As far as I can tell, no there is not. Wrapping it in withContext will run it on the Dispatchers.Default and async would do the same 🙂

[Freedom]

Thanks for the answer