Initial commit: Angular frontend and Expressjs backend

worklenz-backend/src/middlewares/image-to-webp.ts

@@ -0,0 +1,23 @@
+import {NextFunction} from "express";
+import sharp from "sharp";
+
+import {IWorkLenzRequest} from "../interfaces/worklenz-request";
+import {IWorkLenzResponse} from "../interfaces/worklenz-response";
+import {ServerResponse} from "../models/server-response";
+
+export default async function (req: IWorkLenzRequest, res: IWorkLenzResponse, next: NextFunction) {
+  if (!req.body.file) return next();
+  try {
+    const buffer = Buffer.from(req.body.file.replace(/^data:(.*?);base64,/, ""), "base64");
+    const out = await sharp(buffer)
+      .webp({quality: 50})
+      .toBuffer();
+
+    req.body.type = "webp";
+    req.body.buffer = out;
+
+    return next();
+  } catch (error) {
+    return res.status(200).send(new ServerResponse(false, null, "Upload failed"));
+  }
+}