initial commit

apps/Backend/src/routes/paymentOcrExtraction.ts

@@ -0,0 +1,50 @@
+import { Router, Request, Response } from "express";
+import multer from "multer";
+import { forwardToPaymentOCRService } from "../services/paymentOCRService"; 
+
+const router = Router();
+
+// keep files in memory; FastAPI accepts them as multipart bytes
+const upload = multer({ storage: multer.memoryStorage() });
+
+// POST /payment-ocr/extract  (field name: "files")
+router.post(
+  "/extract",
+  upload.array("files"), // allow multiple images
+  async (req: Request, res: Response): Promise<any> => {
+    try {
+      const files = req.files as Express.Multer.File[] | undefined;
+
+      if (!files || files.length === 0) {
+        return res
+          .status(400)
+          .json({ error: "No image files uploaded. Use field name 'files'." });
+      }
+
+      // (optional) basic client-side MIME guard
+      const allowed = new Set([
+        "image/jpeg",
+        "image/png",
+        "image/tiff",
+        "image/bmp",
+        "image/jpg",
+      ]);
+      const bad = files.filter((f) => !allowed.has(f.mimetype.toLowerCase()));
+      if (bad.length) {
+        return res.status(415).json({
+          error: `Unsupported file types: ${bad
+            .map((b) => b.originalname)
+            .join(", ")}`,
+        });
+      }
+
+      const rows = await forwardToPaymentOCRService(files);
+      return res.json({ rows });
+    } catch (err) {
+      console.error(err);
+      return res.status(500).json({ error: "Payment OCR extraction failed" });
+    }
+  }
+);
+
+export default router;