Give your sites the edge

import type { Config, Context } from "@netlify/edge-functions";

export default async (request: Request, { geo }: Context) => {
  const url = new URL(request.url);
  const country = geo.country?.code ?? "US";

  url.searchParams.set("country", country);

  return Response.redirect(url, 302);
};

export const config: Config = {
  path: "/*",
};

import type { Config, Context } from "@netlify/edge-functions";

export default async (request: Request, { cookies }: Context) => {
  const existing = cookies.get("exp-variant")?.value;
  const variant = existing ?? (Math.random() < 0.5 ? "a" : "b");

  if (!existing) {
    cookies.set({ name: "exp-variant", value: variant, path: "/" });
  }

  const url = new URL(request.url);
  url.pathname = variant === "a" ? "/landing-a" : "/landing-b";

  return url;
};

export const config: Config = {
  path: "/landing",
};

import type { Config, Context } from "@netlify/edge-functions";

export default async (request: Request, { cookies }: Context) => {
  const session = cookies.get("session-token")?.value;

  if (!session) {
    const login = new URL("/login", request.url);
    login.searchParams.set("redirect", new URL(request.url).pathname);
    return Response.redirect(login, 302);
  }

  return;
};

export const config: Config = {
  path: ["/account/*", "/billing/*"],
};

import type { Config, Context } from "@netlify/edge-functions";

export default async (request: Request, { next }: Context) => {
  const response = await next();
  const text = await response.text();

  const updated = text.replace("<title>", "<title>[Edge optimized] ");

  return new Response(updated, response);
};

export const config: Config = {
  path: "/*",
};