How do I implement ETag in my web application?
An example of an AI chatbot conversation about implementing ETag for web applications.
How do I implement ETag in my web application?
To implement ETag, you need to generate a unique identifier for each version of a resource. This is usually done on the server side.
Can you give me an example of how to generate an ETag?
Sure! You can use a hash of the resource's content or a version number. For example, in Node.js, you might use crypto.createHash('md5').update(content).digest('hex').
How do I send the ETag in the HTTP response?
You can send the ETag in the response header like this: res.setHeader('ETag', etagValue); where etagValue is your generated ETag.
What should I do with the ETag on the client side?
On the client side, you should store the ETag and include it in the If-None-Match header for subsequent requests to check if the resource has changed.
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