implemented /getSaveData route

ParadoxSaveParser.WebAPI/Program.cs

@@ -108,7 +108,9 @@ public static class Program
             var router = new SimpleRouter(loggerRoot);
             router.DefaultRoute = new ServeFilesRouteHandler("public");
             router.MapRoute("/getSaveStatus", HttpMethod.GET, new GetSaveStatusHandler(_mainCancel.Token));
-            router.MapRoute("/uploadSave/eu4", HttpMethod.POST, new UploadSaveHandler(_mainCancel.Token, bgJobManager, saveParsingSearchExpressions));
+            router.MapRoute("/uploadSave/eu4", HttpMethod.POST, new UploadSaveHandler(_mainCancel.Token, 
+                bgJobManager, saveParsingSearchExpressions));
+            router.MapRoute("/getSaveData", HttpMethod.GET, new GetSaveDataHandler(_mainCancel.Token));
 
             var app = new WebApp(_config.BaseUrl, loggerRoot, router, _mainCancel.Token);
             app.Run().GetAwaiter().GetResult();

ParadoxSaveParser.WebAPI/Routes/GetSaveDataHandler.cs

@@ -0,0 +1,33 @@
+using System.Net;
+using ParadoxSaveParser.WebAPI.HttpHelpers;
+
+namespace ParadoxSaveParser.WebAPI.Routes;
+
+internal class GetSaveDataHandler : RouteHandlerBase
+{
+    public GetSaveDataHandler(CancellationToken cancelAllToken) 
+        : base(cancelAllToken)
+    {
+    }
+
+    public override async Task<HttpStatusCode> HandleRequest(
+        HttpListenerContext ctx, ContextLogger requestLogger)
+    {
+        var idOrError = RequestHelper.GetQueryValue(ctx, "id");
+        if (idOrError.HasError)
+            return await ReturnHelper.ResponseError(ctx, requestLogger, _cancelAllToken, idOrError.Error!);
+        string id = idOrError.Value!;
+
+        IOPath dataFilePath = PathHelper.GetParsedSaveFilePath(id);
+        if (!File.Exists(dataFilePath))
+            return await ReturnHelper.ResponseError(ctx, requestLogger, _cancelAllToken,
+                new ErrorMessage(HttpStatusCode.InternalServerError, 
+                    $"Save with id {id} not found")
+            );
+
+        await using var dataFile = File.OpenRead(dataFilePath);
+        
+        return await ReturnHelper.ResponseStream(ctx, requestLogger, _cancelAllToken,
+            dataFile, contentType: "application/json");
+    }
+}

ParadoxSaveParser.WebAPI/Routes/GetSaveStatusHandler.cs

@@ -16,11 +16,12 @@ internal class GetSaveStatusHandler : RouteHandlerBase
         var idOrError = RequestHelper.GetQueryValue(ctx, "id");
         if (idOrError.HasError)
             return await ReturnHelper.ResponseError(ctx, requestLogger, _cancelAllToken, idOrError.Error!);
+        string id = idOrError.Value!;
         
-        if (!Program._saveMetadataStorage.TryGetValue(idOrError.Value!, out var meta))
+        if (!Program._saveMetadataStorage.TryGetValue(id, out var meta))
             return await ReturnHelper.ResponseError(ctx, requestLogger, _cancelAllToken,
                 new ErrorMessage(HttpStatusCode.InternalServerError, 
-                    $"Save with id {idOrError.Value} not found")
+                    $"Save with id {id} not found")
                 );
 
         return await ReturnHelper.ResponseJson(ctx, requestLogger, _cancelAllToken, meta);