Add commands engine
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Paul-Henri Froidmont
parent
1919e4b72c
commit
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GPG key ID:
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9 changed files with 336 additions and 58 deletions
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@ -1,71 +1,22 @@
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package lu.foyer
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import lu.foyer.clients.ClientState
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import lu.foyer.clients.*
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import zio.*
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import zio.Console.*
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import zio.http.*
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import zio.schema.*
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import zio.http.endpoint.*
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import zio.http.codec.*
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import java.net.URI
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import zio.http.codec.PathCodec.path
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import zio.http.endpoint.*
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import zio.http.endpoint.openapi.OpenAPIGen
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import zio.http.endpoint.openapi.SwaggerUI
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import zio.http.codec.PathCodec.path
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import zio.schema.*
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case class JsonApiResponseSingle[T](
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data: JsonApiResponseEntity[T],
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links: JsonApiResponseLinks)
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derives Schema
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case class JsonApiResponseMultiple[T](
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data: List[JsonApiResponseEntity[T]],
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links: JsonApiResponseLinks,
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meta: JsonApiResponseMeta)
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derives Schema
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case class JsonApiResponseLinks(
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self: String,
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first: Option[String] = None,
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prev: Option[String] = None,
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next: Option[String] = None,
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last: Option[String] = None)
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derives Schema
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case class JsonApiResponseMeta(totalRecords: Int, totalPages: Int) derives Schema
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final case class JsonApiResponseEntity[T](id: String, `type`: String, attributes: T) derives Schema
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case class Page(number: Int, size: Int, totals: Boolean)
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val pageParams =
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(HttpCodec.query[Option[Int]]("page[number]")
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& HttpCodec.query[Option[Int]]("page[size]")
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& HttpCodec.query[Option[Boolean]]("page[totals]"))
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.transform[Page]((number, size, totals) =>
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Page(number.getOrElse(0), size.getOrElse(50), totals.getOrElse(false))
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)(p => (Some(p._1), Some(p._2), Some(p._3)))
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object ClientsController:
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private val fetchMany =
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Endpoint(Method.GET / "clients").query(pageParams).out[JsonApiResponseMultiple[ClientState]]
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private val fetchManyRoute =
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fetchMany.implement(page =>
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ZIO.succeed(
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JsonApiResponseMultiple[ClientState](
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List.empty,
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JsonApiResponseLinks("https://api.example.org"),
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meta = JsonApiResponseMeta(0, 1)
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)
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)
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)
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val endpoints = List(fetchMany)
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val routes = Routes(fetchManyRoute)
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import java.net.URI
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import java.time.LocalDate
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import java.util.UUID
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object App extends ZIOAppDefault:
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val openAPI = OpenAPIGen.fromEndpoints(ClientsController.endpoints)
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val routes = ClientsController.routes ++ SwaggerUI.routes("docs" / "openapi", openAPI)
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val openAPI = OpenAPIGen.fromEndpoints(ClientController.endpoints)
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val routes = ClientController.routes ++ SwaggerUI.routes("docs" / "openapi", openAPI)
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override def run = Server.serve(routes).provide(Server.default)
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174
api/src/lu/foyer/clients/ClientController.scala
Normal file
174
api/src/lu/foyer/clients/ClientController.scala
Normal file
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@ -0,0 +1,174 @@
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package lu.foyer
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package clients
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import zio.*
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import zio.Console.*
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import zio.http.*
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import zio.http.codec.*
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import zio.http.codec.PathCodec.path
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import zio.http.endpoint.*
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import zio.schema.*
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import java.net.URI
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import java.time.LocalDate
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import java.util.UUID
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object JsonApiResponse:
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case class One[T](
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data: Entity[T],
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links: Links)
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derives Schema
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case class Many[T](
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data: List[Entity[T]],
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links: Links,
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meta: Meta)
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derives Schema
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case class Links(
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self: String,
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first: Option[String] = None,
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prev: Option[String] = None,
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next: Option[String] = None,
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last: Option[String] = None)
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derives Schema
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case class Meta(totalRecords: Option[Long], totalPages: Option[Long]) derives Schema
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case class Entity[T](id: String, `type`: String, attributes: T) derives Schema
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case class Error(message: String) derives Schema // TODO
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val pageParams =
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(HttpCodec.query[Option[Int]]("page[number]")
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& HttpCodec.query[Option[Int]]("page[size]")
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& HttpCodec.query[Option[Boolean]]("page[totals]"))
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.transform[Page]((number, size, totals) =>
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Page(number.getOrElse(0), size.getOrElse(50), totals.getOrElse(false))
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)(p => (Some(p._1), Some(p._2), Some(p._3)))
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trait CommandEngineController[Command: Schema, Event: Schema, State: Schema](
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entityName: String,
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commands: List[Command],
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commandEngine: CommandEngine[Command, Event, State]):
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private val fetchMany =
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Endpoint(Method.GET / entityName)
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.query(pageParams)
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.out[JsonApiResponse.Many[State]]
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.outError[JsonApiResponse.Error](Status.InternalServerError)
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private val fetchOne =
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Endpoint(Method.GET / entityName / string("entityId"))
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.out[JsonApiResponse.One[State]]
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private val fetchEventsMany =
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Endpoint(Method.GET / entityName / string("entityId") / "events")
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.query(pageParams)
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.out[JsonApiResponse.Many[Event]]
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private val fetchEventsOne =
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Endpoint(Method.GET / entityName / string("entityId") / "events" / string("eventId"))
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.out[JsonApiResponse.One[Event]]
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private val commandsEndpoints = commands.map(command =>
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Endpoint(Method.POST / "clients" / "commands" / command.toString.toLowerCase)
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.in[Command]
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.out[JsonApiResponse.One[Event]]
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)
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private val fetchManyRoute =
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fetchMany.implement(page =>
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commandEngine.stateRepo
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.fetchMany(page)
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.map(paged =>
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JsonApiResponse.Many(
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paged.items.map(entity =>
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JsonApiResponse.Entity(entity.entityId.toString, "todo", entity.data)
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),
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JsonApiResponse.Links("https://api.example.org"),
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meta = JsonApiResponse.Meta(paged.totals, None) // TODO
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)
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).mapError(e => JsonApiResponse.Error(e.getMessage))
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)
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end CommandEngineController
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object ClientController:
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private val fetchMany =
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Endpoint(Method.GET / "clients")
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.query(pageParams)
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.out[JsonApiResponse.Many[ClientState]]
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private val fetchOne =
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Endpoint(Method.GET / "clients" / string("entityId"))
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.out[JsonApiResponse.One[ClientState]]
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private val createCommand =
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Endpoint(Method.POST / "clients" / "commands" / "create")
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.in[ClientCommand.Create]
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.out[JsonApiResponse.One[ClientEvent]]
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private val updateCommand =
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Endpoint(Method.PUT / "clients" / string("entityId") / "commands" / "udpate")
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.in[ClientCommand.Update]
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.out[JsonApiResponse.One[ClientEvent]]
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private val disableCommand =
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Endpoint(Method.PUT / "clients" / string("entityId") / "commands" / "disable")
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.in[ClientCommand.Disable]
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.out[JsonApiResponse.One[ClientEvent]]
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private val fetchEventsMany =
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Endpoint(Method.GET / "clients" / string("entityId") / "events")
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.query(pageParams)
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.out[JsonApiResponse.Many[ClientEvent]]
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private val fetchEventsOne =
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Endpoint(Method.GET / "clients" / string("entityId") / "events" / string("eventId"))
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.out[JsonApiResponse.One[ClientEvent]]
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private val fetchManyRoute =
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fetchMany.implement(page =>
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ZIO.succeed(
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JsonApiResponse.Many[ClientState](
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List.empty,
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JsonApiResponse.Links("https://api.example.org"),
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meta = JsonApiResponse.Meta(None, None)
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)
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)
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)
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private val createCommandRoute =
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createCommand.implement(command =>
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ZIO.succeed(
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JsonApiResponse.One[ClientEvent](
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JsonApiResponse.Entity(
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id = "todo",
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`type` = "todo",
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ClientEvent.Created(
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lastName = command.lastName,
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firstName = command.firstName,
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birthDate = command.birthDate,
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drivingLicenseDate = command.drivingLicenseDate,
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phoneNumber = command.phoneNumber,
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email = command.email,
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address = command.address
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)
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),
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JsonApiResponse.Links("https://api.example.org")
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)
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)
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)
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val endpoints = List(
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fetchMany,
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fetchOne,
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createCommand,
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updateCommand,
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disableCommand,
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fetchEventsMany,
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fetchEventsOne
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)
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val routes = Routes(fetchManyRoute)
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end ClientController
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