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Published : Apr 03, 2024
Apr 2024
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Although not a new concept, we've noticed the growing availability and use of decentralized code execution via content delivery networks (CDNs). Services such as Cloudflare Workers or Amazon CloudFront Edge Functions provide a mechanism to execute snippets of serverless code close to the client's geographic location. Edge functions not only offer lower latency if a response can be generated at the edge, they also present an opportunity to rewrite requests and responses in a location-specific way on their way to and from the regional server. For example, you might rewrite a request URL to route to a specific server that has local data relevant to a field found in the request body. This approach is best suited to short, fast-running stateless processes since the computational power at the edge is limited.

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