Hi Thibault,
I do this kind of thing with Source.fromIterator(...) passing it an
iterator obtained from a java stream.
In your case, it would look something like:
Source<UUID, ?> source = Source.fromIterator( () ->
Stream.generate( ()->
UUID.randomUUID()
).iterator()
).take(n);
then I stream it out as per:
http://doc.akka.io/docs/akka-http/current/java/http/routing-dsl/source-streaming-support.html#simple-csv-streaming-example
The conversion from the domain object (UUID in your case) to ByteString
happens in the function passed when creating the Marshaller as in the
CSV example in the doc section above (I just use Jackson.marshaller() in
my case)
Happy to learn if there's a better way to do this.
Cheers,
Michal
On 20/04/17 08:56, Thibault Meyer wrote:
Hi,
I trying akka-http (version 10.x) by creating a small API who generate
UUID on demand. For a bulk UUID creation (ex: //uuid1/5000/ to get
5000 UUID v1), I would like to return a chunked response to avoir
building a list of xxxx item on memory.
From Play 2.5 I usually using final Source<ByteString, ?> source =
Source.fromGraph(...) but I don't find how to do this with akka-http
and akka-stream.
Do you have any idea how to do this ?
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