ISSUE - High latency with AWS Cloudfront on top of AWS AppSync whereas AWS API Gateway (edge optimized) with AWS AppSync showing better results (low latency).
If AWS gateway internally uses cloud front for global distribution then result should be same?
Is it a best practice to use API Gateway on top of AppSync just for global distribution ?
In order to find the problem I tried multiple PoCs -
POC 1 - High TTFB with ASIA region without AWS Cloudfront
Detail - AWS AppSync deployed in us-east-1 region
Screenshot -
POC 2 - High TTFB with ASIA region with AWS CloudFront on top of AWS AppSync
Detail - AWS AppSync deployed in us-east-1 region, used AWS CloudFront (All edge locations) to solve global distribution and persistent connection for faster connections and data compression
Result - 10% improvement in latency but no data-compression got
Screenshot -
POC 3 - Low TTFB in ASIA region with AWS Gatway (edge optimized) on top of AWS AppSync
Detail - AWS Gateway deployed in us-east-1 region with edge-optimized which internally uses AWS CloudFront for persistent connection
Result - 30% improvement in latency with data compression
Screenshot -
