add solutions for api-helper and apply.ts

src/pages/api/api-helpers/index.ts

@@ -1,12 +1,9 @@
-type EventBody = {
-    [key: string]: unknown;
-};
-
-export function checkParams(eventBody: EventBody, params: string[]): boolean {
-    return params.some((k) => {
-        const value = eventBody[k];
-        return typeof value === "undefined" || value === null || value === "";
-        // Further specific checks can be added based on the expected types of values.
+// Adjusting the EventBody type to be generic
+export function checkParams<T>(eventBody: T, params: (keyof T)[]): boolean {
+    return params.some((key) => {
+        // Explicitly handling the indexing with keyof T to ensure type safety
+        const value = eventBody[key as keyof T];
+        return value === undefined || value === null || value === "";
     });
 }
 

src/pages/api/apply.ts

@@ -38,7 +38,9 @@ export default async function handler(req: Request, res: Response) {
             "preworkLink",
             "preworkRepo",
         ];
-        const hasErrors = checkParams<ParsedBody>(parsedBody, requiredParams);
+
+        // Note: Type argument removed since TypeScript infers <ParsedBody> from the argument types
+        const hasErrors = checkParams(parsedBody, requiredParams);
 
         if (hasErrors) {
             return res.status(422).json({