migrate to typescript

src/routes/getUsername.ts

@@ -0,0 +1,37 @@
+import {db} from '../databases/databases';
+import {getHash} from '../utils/getHash';
+import {Logger} from '../utils/logger';
+import {Request, Response} from 'express';
+
+export function getUsername(req: Request, res: Response) {
+    let userID = req.query.userID as string;
+
+    if (userID == undefined) {
+        //invalid request
+        res.sendStatus(400);
+        return;
+    }
+
+    //hash the userID
+    userID = getHash(userID);
+
+    try {
+        let row = db.prepare('get', "SELECT userName FROM userNames WHERE userID = ?", [userID]);
+
+        if (row !== undefined) {
+            res.send({
+                userName: row.userName,
+            });
+        } else {
+            //no username yet, just send back the userID
+            res.send({
+                userName: userID,
+            });
+        }
+    } catch (err) {
+        Logger.error(err);
+        res.sendStatus(500);
+
+        return;
+    }
+}