Ok, made one baby step. I was missing an implicit ActorMaterializer within
scope. Fixed that. Now, compile errors are:
*[error]
/Users/matthew/Documents/github/payment-flow/solution/src/main/scala/com/demo/akka/http/Rest.scala:50:
type mismatch;*
*[error] found : Unit*
*[error] required: akka.http.scaladsl.marshalling.ToResponseMarshallable*
*[error] (bank ? oa) onSuccess {*
*[error] ^*
*[error]
/Users/matthew/Documents/github/payment-flow/solution/src/main/scala/com/demo/akka/http/Rest.scala:58:
type mismatch;*
*[error] found : Unit*
*[error] required: akka.http.scaladsl.marshalling.ToResponseMarshallable*
*[error] (bank ? t) onSuccess {*
*[error] ^*
*[error] two errors found*
*[error] (compile:compile) Compilation failed*
*[error] Total time: 1 s, completed Sep 10, 2015 10:27:10 AM*
On Wednesday, September 9, 2015 at 6:41:18 PM UTC-5, Matthew Adams wrote:
>
> Hi all,
>
> I'm trying to understand using actors with the routing DSL. How do I
> complete using the routing DSL given an actor that I'm asking and may
> return different responses? Here's the code:
>
>
> *object RestApiJsonProtocols extends DefaultJsonProtocol with
> SprayJsonSupport {*
>
> * implicit val jfAmount = jsonFormat1(Amount)*
>
>
> * implicit val jfOpenAccount = jsonFormat2(OpenAccount)*
>
> * implicit val jfDeposit = jsonFormat2(Deposit)*
>
> * implicit val jfWithdraw = jsonFormat2(Withdraw)*
>
> * implicit val jfGetBalance = jsonFormat1(GetBalance)*
>
> * implicit val jfTransfer = jsonFormat3(Transfer)*
>
> * implicit val jfGetAccounts = jsonFormat0(GetAccounts)*
>
> * implicit val jfBalance = jsonFormat2(Balance)*
>
> * implicit val jfAccounts = jsonFormat1(Accounts)*
>
> * implicit val jfTransferResult = jsonFormat4(TransferResult)*
>
> * implicit val jfNoSuchAccount = jsonFormat2(NoSuchAccount)*
>
> * implicit val jfAccountAlreadyExists = jsonFormat2(AccountAlreadyExists)*
>
> * implicit val jfInsufficientFunds = jsonFormat3(InsufficientFunds)*
>
> *}*
>
>
> * import RestApiJsonProtocols._*
>
>
> * val myRoute =*
>
> * path("accounts") {*
>
> * post {*
>
> * entity(as[OpenAccount]) { oa =>*
>
> * complete {*
>
> * (bank ? oa) onSuccess { **// "bank" is an Actor*
>
> * case b: Balance => b // WRONG*
>
> * case x: AccountAlreadyExists => x // WRONG*
>
> * }*
>
> * }*
>
> * } ~*
>
> * entity(as[Transfer]) { t =>*
>
> * complete {*
>
> * (bank ? t) onSuccess { **// "bank" is an Actor*
>
> * case tr: TransferResult => tr // WRONG*
>
> * case nsax: NoSuchAccount => nsax** // WRONG*
>
> * case ifx: InsufficientFunds => ifx** // WRONG*
>
> * }*
>
> * }*
>
> * }*
>
> * } ~*
>
> * get {*
>
> * complete((bank ? GetAccounts()).mapTo[Accounts]) // RIGHT!*
>
> * }*
>
> * }*
>
>
> I don't know what the right magical incantation is but here are my current
> compilation errors.
>
>
> *> compile*
>
> *[info] Compiling 3 Scala sources to
> /Users/matthew/Documents/github/payment-flow/solution/target/scala-2.11/classes...*
>
> *[error]
> /Users/matthew/Documents/github/payment-flow/solution/src/main/scala/com/demo/akka/http/Rest.scala:53:
>
> could not find implicit value for parameter um:
> akka.http.scaladsl.unmarshalling.FromRequestUnmarshaller[com.demo.akka.http.BankCommands.OpenAccount]*
>
> *[error] entity(as[OpenAccount]) { oa =>*
>
> *[error] ^*
>
> *[error]
> /Users/matthew/Documents/github/payment-flow/solution/src/main/scala/com/demo/akka/http/Rest.scala:55:
>
> type mismatch;*
>
> *[error] found : Unit*
>
> *[error] required: akka.http.scaladsl.marshalling.ToResponseMarshallable*
>
> *[error] (bank ? oa) onSuccess {*
>
> *[error] ^*
>
> *[error]
> /Users/matthew/Documents/github/payment-flow/solution/src/main/scala/com/demo/akka/http/Rest.scala:61:
>
> could not find implicit value for parameter um:
> akka.http.scaladsl.unmarshalling.FromRequestUnmarshaller[com.demo.akka.http.BankCommands.Transfer]*
>
> *[error] entity(as[Transfer]) { t =>*
>
> *[error] ^*
>
> *[error]
> /Users/matthew/Documents/github/payment-flow/solution/src/main/scala/com/demo/akka/http/Rest.scala:63:
>
> type mismatch;*
>
> *[error] found : Unit*
>
> *[error] required: akka.http.scaladsl.marshalling.ToResponseMarshallable*
>
> *[error] (bank ? t) onSuccess {*
>
> *[error] ^*
>
> *[error] four errors found*
>
> *[error] (compile:compile) Compilation failed*
>
> *[error] Total time: 1 s, completed Sep 9, 2015 6:30:19 PM*
>
> As you can see from the route, if an OpenAccount message is POSTed to
> /accounts I use ask to send the actor (bank) the OpenAccount message. It
> responds with either a Balance or AccountAlreadyExists message. If a
> Transfer message is POSTed to /accounts, I use ask to send the actor the
> Transfer message, which responds with either TransferResult, NoSuchAccount,
> or InsufficientFunds message. In either case, I want to send the message
> that the actor responds with back to the client as JSON.
>
> The GET directive's content shows no errors (in Scala IDE or IntelliJ) and
> is inspired by
> https://groups.google.com/forum/#!topic/akka-dev/ei-0OzzgKd0 which I felt
> lucky to find.
>
> I'm kind of on the clock on this one and could use some help.
>
> Thanks,
> Matthew
>
>
>
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