cloudflare-worker-builder

Run npm create cloudflare@latest with the hello-world template, then install hono and @cloudflare/vite-plugin. Define routes on a Hono app and use export default app as the entry point, which is the correct ES Module pattern for Workers.

The SPA fallback in Static Assets intercepts requests when run_worker_first is missing. Add "run_worker_first": ["/api/*"] to the assets section of wrangler.jsonc so Worker routes execute before the index.html fallback.

This error comes from using export default { fetch: app.fetch }, which loses the this context during Vite bundling. Use export default app directly, or the Module Worker format only when you also need scheduled or tail handlers.

Switch to the Module Worker export format with both fetch and scheduled handlers, then define crons under triggers in wrangler.jsonc. The @hono/vite-build plugin only supports fetch, so use @cloudflare/vite-plugin instead.

Yes, declare d1_databases, r2_buckets, and kv_namespaces arrays in wrangler.jsonc with explicit binding names. Wrangler 4.45+ auto-provisions resources on first deploy, and wrangler types generates TypeScript definitions for type-safe access.

A race condition in parallel static asset uploads causes non-deterministic failures, documented in workers-sdk issue 7555. Upgrade to Wrangler 4.x for improved upload logic, or add retry loops around the deploy command in your pipeline.