first working prototype of shortly

src/scripts/checkMissingData.ts

@@ -0,0 +1,19 @@
+import { Request } from 'express'
+
+export default function (values: string[], req: Request) {
+    const missingData = values.reduce((arr: string[], valueName) => {
+        if (!req.headers[valueName]) {
+            return [...arr, valueName]
+        } else {
+            return arr
+        }
+    }, [])
+    if (missingData.length) {
+        throw new Error(
+            JSON.stringify({
+                mesasage: 'no data from user',
+                properties: missingData,
+            })
+        )
+    }
+}