Usually one would do something like this:
trait MyModelJsonProtocol extends DefaultJsonProtocol {
implicit val feedFormat = jsonFormat2(Feed)
}
object MyModelJsonProtocol extends MyModelJsonProtocol
And use it like so:
trait MyHelloWorldRoute extends MyModelJsonProtocol = {
val route = complete(List(Feed(...)))
}
Which should work AFAIR :-)
--
Cheers,
Konrad 'ktoso’ Malawski
Akka @ Typesafe
On 11 November 2015 at 14:18:57, [email protected]
([email protected]) wrote:
Hi Guys,
I'm trying out Akka-http on a small pet project of mine(where I'm gonna use it
to implement some REST API) and I've stumbled upon an interesting problem with
implicits.
So, long story short it appears that I need to add an implicit Json writer for
each collection-entity pair that I intend to serialize into Json.
For example, in addition to:
implicit val feedFormat = jsonFormat2(Feed)
I need to add
implicit val feedsWriter = DefaultJsonProtocol.seqFormat[Feed]
so that later in the code I can simply write
complete(somethingThatReturnsSeqOfFeed(...)). Otherwise, it won't compile
because there is no implicit for Seq[Feed].
Did I miss something like certain import or this is indeed the expected
behavior?
Best Regards,
Ilya
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