Add a cache control header to a CloudFront Functions viewer response event - Amazon CloudFront
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Add a cache control header to a CloudFront Functions viewer response event

The following code example shows how to add a cache control header to a CloudFront Functions viewer response event.

JavaScript
JavaScript runtime 2.0 for CloudFront Functions
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the CloudFront Functions examples repository. 

async function handler(event) {
    var response = event.response;
    var headers = response.headers;
    
    if (response.statusCode >= 200 && response.statusCode < 400) {
        // Set the cache-control header
        headers['cache-control'] = {value: 'public, max-age=63072000'};
    }
        
    // Return response to viewers
    return response;
}

For a complete list of Amazon SDK developer guides and code examples, see Using CloudFront with an Amazon SDK. This topic also includes information about getting started and details about previous SDK versions.