Add better error message to parseIntParam

app/src/api/helpers.ts

@@ -1,9 +1,10 @@
 import { strictParseInt } from '../parse';
 
-export function parseIntParam(param: string) {
+export function parseIntParam(param: string, paramName?: string) {
     const result = strictParseInt(param);
     if (isNaN(result)) {
-        throw new Error('Invalid parameter format: not an integer');
+        const paramNameString = paramName == undefined ? '' : paramName + ' ';
+        throw new Error(`Invalid parameter ${paramNameString}format: not an integer`);
     }
     return result;
 }