Latency-sensitive API needs to sit closer to the user
Cloudflare Workers and Vercel Edge Functions run at edge PoPs. Works for stateless or cache-heavy.
Try this first
- 1Match runtime to code: Workers support JS/WASM, Vercel runs Node-edge
- 2No long CPU jobs, edge runtimes have strict per-request limits
- 3State via Workers KV, D1, R2, Durable Objects, or remote DB with connection pooling
- 4Test cold-start and limit errors under production load
When to bring us in
If most users share a region, edge is overkill. A regional Lambda or App Service is simpler.
See also
- Everyone logs in with the AWS root accountRoot is for emergencies and billing. Day-to-day work belongs in IAM users or SSO.
- Every developer has AdministratorAccessAdministratorAccess everywhere is convenient now, painful later. Start with role-based policies.
- Everyone has individual IAM users with their own passwordIdentity Center (formerly AWS SSO) links to your IdP and issues temporary credentials per session.
None of the above fits?
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