feat: begin link shortener

next.config.js

@@ -0,0 +1,12 @@
+module.exports = {
+	async rewrites() {
+		return {
+			fallback: [
+				{
+					source: "/:path*",
+					destination: `/api/link/?slug=:path*`
+				}
+			]
+		}
+	}
+}

pages/api/link.js

@@ -0,0 +1,25 @@
+// the idea with all of the weird cache stuff is we don't ever have to worry about hitting airtable's rate limits
+// if i get a ton of traffic for some reason, while still being able to fetch new data from airtable every
+// once in a while so i don't have to rebuild the site every time i want to update shortened links like i did previously.
+// the other advantage of running redirects here instead of next.config.js is that i can add some basic/privacy-friendly
+// logs of what links were accessed when and where which wasn't an option previously.
+// also stale while revalidate is pretty pog, see https://vercel.com/docs/concepts/functions/edge-caching
+
+// idk how to handle 404s yet but that shouldn't be too painful i hope - if i return a 404 does it 
+// serve the 404 page for me? then i can style that and make it all nice
+
+export default async (req, res) => {
+	const ALLOWED_METHODS = ["GET", "HEAD"]
+	if (!ALLOWED_METHODS.includes(req.method)) {
+		return res.send("Only GET and HEAD methods are supported.")
+	}
+
+	if (req.cookies["_vercel_no_cache"] === 1 || req.query["?_vercel_no_cache"] === 1 || req.headers["Authorization"] || req.headers["Range"]) {
+		return res.send("sorry, we must get that cash!")
+	}
+
+	// TODO: Airtable stuff
+
+	res.setHeader("Cache-Control", "s-maxage=10, stale-while-revalidate")
+	return res.redirect(308, "https://jasonaa.me")
+}