diff options
Diffstat (limited to 'src/main/scala/xyz/driver/pdsuidomain/formats/json/sprayformats/listresponse.scala')
-rw-r--r-- | src/main/scala/xyz/driver/pdsuidomain/formats/json/sprayformats/listresponse.scala | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/main/scala/xyz/driver/pdsuidomain/formats/json/sprayformats/listresponse.scala b/src/main/scala/xyz/driver/pdsuidomain/formats/json/sprayformats/listresponse.scala new file mode 100644 index 0000000..20644dc --- /dev/null +++ b/src/main/scala/xyz/driver/pdsuidomain/formats/json/sprayformats/listresponse.scala @@ -0,0 +1,45 @@ +package xyz.driver.pdsuidomain.formats.json.sprayformats + +import spray.json._ +import spray.json.DefaultJsonProtocol._ +import xyz.driver.pdsuidomain.ListResponse +import xyz.driver.pdsuidomain.formats.json.sprayformats.common._ + +object listresponse { + private val itemsField = "items" + private val metaField = "meta" + + implicit val listResponseMetaFormat: RootJsonFormat[ListResponse.Meta] = jsonFormat4(ListResponse.Meta.apply) + + implicit def listResponseWriter[T: JsonWriter]: RootJsonWriter[ListResponse[T]] = + new RootJsonWriter[ListResponse[T]] { + override def write(listResponse: ListResponse[T]): JsValue = { + JsObject( + itemsField -> listResponse.items.map(_.toJson).toJson, + metaField -> listResponse.meta.toJson + ) + } + } + + implicit def listResponseReader[T: JsonReader]: RootJsonReader[ListResponse[T]] = + new RootJsonReader[ListResponse[T]] { + override def read(json: JsValue): ListResponse[T] = json match { + case JsObject(fields) => + val items = fields + .get(itemsField) + .map { + case JsArray(elements) => elements.map(_.convertTo[T])(collection.breakOut) + case x => deserializationError(s"Expected Array as JsArray, but got $x") + } + .getOrElse(deserializationError(s"ListResponse json object does not contain `$itemsField` field: $json")) + + val meta = fields + .get(metaField) + .map(_.convertTo[ListResponse.Meta]) + .getOrElse(deserializationError(s"ListResponse json object does not contain `$metaField` field: $json")) + + ListResponse(items, meta) + case _ => deserializationError(s"Expected ListResponse json object, but got $json") + } + } +} |