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Cloudflare Workers

Serverless execution environment on Cloudflare’s global edge network. Executes JavaScript, typescript, and WebAssembly code distributed worldwide for low-latency request processing. Part of the Cloudflare ecosystem, complementing Cloudflare Pages, KV Storage, D1 Database, and R2 Storage.

Core Capabilities

• Runs on V8 Isolate runtimes optimized for cold start performance.
• Intercepts and modifies HTTP Requests and responses at the edge.
• Exposes bindings to Cloudflare resources including KV Storage, D1 Database, R2 Storage, Queue, and Cloudflare Email Routing.
• Compatible with frameworks such as [[concepts/astro]], Next.js, and SvelteKit via adapters.

Integrations & Use Cases

• Email Routing Integration: Leverages Workers bindings with Cloudflare Email Routing to process inbound mail and trigger transactional email workflows.
• Astro Backend Logic: Powers server-side functionality for [[concepts/astro]] projects, enabling features like email sending using Cloudflare Email Service.
• See: Astro Email Sending with Cloudflare Workers and Email Routing.