Add index.html to request URLs without a file name in a CloudFront Functions viewer request event - Amazon CloudFront
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Add index.html to request URLs without a file name in a CloudFront Functions viewer request event

The following code example shows how to add index.html to request URLs without a file name in a CloudFront Functions viewer request 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 request = event.request;
    var uri = request.uri;
    
    // Check whether the URI is missing a file name.
    if (uri.endsWith('/')) {
        request.uri += 'index.html';
    } 
    // Check whether the URI is missing a file extension.
    else if (!uri.includes('.')) {
        request.uri += '/index.html';
    }

    return request;
}

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.