What are some examples of ETag implementation?
An example of an AI chatbot conversation about ETag implementation in web development.
What are some examples of ETag implementation?
ETags are used in HTTP headers to manage cache validation. For example, a server can send an ETag like '"abc123"' in the response header.
How does the client use the ETag?
The client stores the ETag and includes it in subsequent requests using the 'If-None-Match' header. If the ETag matches, the server can respond with a 304 Not Modified status.
Can you give me a code example?
Sure! In a Node.js Express app, you can set an ETag like this: res.set('ETag', '"abc123"'); and check it with if (req.headers['if-none-match'] === '"abc123"') { res.status(304).send(); }.
What are the benefits of using ETags?
ETags help reduce bandwidth usage and improve load times by allowing clients to cache responses and avoid unnecessary data transfers.
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