feature/IO-3052-Skia-Canvas-Handler: Cleanup

Signed-off-by: Dave Richer <dave@imexsystems.ca>

server/middleware/validateCanvasInputMiddleware.js

@@ -0,0 +1,25 @@
+const { isObject } = require("lodash");
+
+const validateCanvasInputMiddleware = (req, res, next) => {
+  const { values, keys, override } = req.body;
+
+  if (!Array.isArray(values) || !Array.isArray(keys)) {
+    return res.status(400).send("Invalid input: 'values' and 'keys' must be arrays.");
+  }
+
+  if (values.some((value) => typeof value !== "number")) {
+    return res.status(400).send("Invalid input: 'values' must be an array of numbers.");
+  }
+
+  if (keys.some((key) => typeof key !== "string")) {
+    return res.status(400).send("Invalid input: 'keys' must be an array of strings.");
+  }
+
+  if (override && !isObject(override)) {
+    return res.status(400).send("Override must be an object");
+  }
+
+  next(); // Proceed to the next middleware or route handler
+};
+
+module.exports = validateCanvasInputMiddleware;