If we select edge-optimized API endpoint while creation the API gateway, will cloudfront distribution be added/attached internally? Or should we create new distribution and attach it to API gateway?
Found the answer on the official AWS link.
If your API clients are geographically dispersed, consider using an edge-optimized API endpoint in API Gateway. This type of endpoint acts as a Regional endpoint with an AWS managed CloudFront web distribution to improve client connection time.
To use the global CloudFront content delivery network and maintain more control over the distribution, use a Regional API with a custom CloudFront web distribution.