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| import scala.concurrent.ExecutionContext.Implicits.global | |
| import scala.concurrent.Future | |
| trait Request | |
| trait Response | |
| trait CacheService { | |
| def isDuplicateRequest(request: Request): Future[Option[Request]] | |
| def setCacheForDeduplication(dedupedReq: Option[Request]): Future[Boolean] | |
| } | |
| trait Processor { | |
| def process(request: Option[Request]): Future[Response] | |
| } | |
| class API(cacheService: CacheService, processor: Processor) { | |
| def process(request: Request): Future[Response] = { | |
| for { | |
| dedupedRequest <- cacheService.isDuplicateRequest(request) | |
| response <- processor.process(dedupedRequest) | |
| _ <- cacheService.setCacheForDeduplication(dedupedRequest) // what's wrong here? | |
| } yield response | |
| } | |
| } |
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