Handle users directly going to pack.hackclub.com

src/index.js

@@ -12,8 +12,24 @@ const PORT = process.env.PORT || 1234
 const app = express()
 
 app.get('/', async (req, res) => {
+  const formUrl = 'https://airtable.com/shrNMxeoANyxtVY8U'
+
   try {
     const code = req.query.code
+
+    if (!code) {
+      // If there isn't any code the user might be coming to us directly instead of redirecting from GitHub's OAuth
+      // Let's send this wayward traveler back to the right path
+
+      console.log(
+        'Got request without a code! Redirecting them to hack.af/pack'
+      )
+      res.redirect(302, 'https://hack.af/pack')
+      return
+    }
+
+    console.log(`Got request with code '${code}`)
+
     const ghResponse = await request(
       'POST https://github.com/login/oauth/access_token',
       {
@@ -32,12 +48,22 @@ app.get('/', async (req, res) => {
       headers: { Authorization: `token ${accessToken}` },
     })
 
-    res.redirect(
-      302,
-      `https://airtable.com/shrNMxeoANyxtVY8U?prefill_GitHub%20Username=${ghUser.data.login}`
-    )
+    const username = ghUser.data && ghUser.data.login
+    if (username) {
+      console.log(
+        `GitHub tells me that this user is https://github.com/${username}. I'll redirect them to the Airtable`
+      )
+      res.redirect(302, `${formUrl}?prefill_GitHub%20Username=${username}`)
+    } else {
+      console.log(
+        "GitHub doesn't recognize this user. I'll just send them to the Airtable with nothing prefilled"
+      )
+      res.redirect(302, formUrl)
+    }
   } catch (e) {
     console.error(e)
+    console.log("Something broke, so I'll just redirect straight to Airtable")
+    res.redirect(302, formUrl)
   }
 })