Download structure for all files in one go. For better UX

src/main/scala/data/DataService.scala

@@ -54,6 +54,13 @@ class DataService(log: Logger[IO]) {
     }
   }
 
+  def getAllFileStructure(): IO[List[Grib]] = {
+    for {
+      fileList <- getFileList()
+      allStructure <- fileList.traverse(getGribStucture)
+    } yield allStructure.flatten
+  }
+
   def getBinaryChunk(offset: Int, length: Int, fileName: String): IO[Array[Byte]] = {
     IO.blocking {
       val source = Source.fromFile(s"$GRIB_FOLDER/$fileName", "ISO-8859-1")

src/main/scala/server/Server.scala

@@ -51,17 +51,20 @@ class Server(postgresService: PostgresService, dataService: DataService, fetch:
   private case class ResponseWrapper(result: Map[String, Option[Aggregate.AggregateValue]], query: UserQuery)
 
   private val apiRoutes = HttpRoutes.of[IO] {
-    // http://0.0.0.0:8080/api/show/grib-name/harmonie_2025-02-01T1500Z_2025-02-01T180000Z.grib
-    case GET -> Root / "show" / "grib" / fileName =>
-//      val fileName = "data/HARMONIE_DINI_SF_2025-01-24T030000Z_2025-01-26T010000Z.grib"
-      dataService.getGribStucture(fileName).flatMap(response => Ok(response.asJson.pretty))
-
     case GET -> Root / "show" / "gribName" => Ok("{\"fileName\":\"TODO replace this fake name\"}")
 
+    // http://0.0.0.0:8080/api/show/grib-all-structure
+    case GET -> Root / "show" / "grib-all-structure" =>
+      dataService.getAllFileStructure().flatMap(gribList => Ok(gribList.asJson))
+
     // http://0.0.0.0:8080/api/show/grib-list
     case GET -> Root / "show" / "grib-list" =>
       dataService.getFileList().flatMap(fileList => Ok(fileList.asJson))
 
+    // http://0.0.0.0:8080/api/show/grib-name/harmonie_2025-02-01T1500Z_2025-02-01T180000Z.grib
+    case GET -> Root / "show" / "grib" / fileName =>
+      dataService.getGribStucture(fileName).flatMap(response => Ok(response.asJson.pretty))
+
     case GET -> Root / "grib" / "binary-chunk" / ValidateInt(binaryOffset) / ValidateInt(binaryLength) / fileName =>
       dataService.getBinaryChunk(binaryOffset, binaryLength, fileName).flatMap(buffer => Ok(buffer))