EDIT: 2020-08-01 SHA-1 Windows content to be retired in 2 days. Amazon is in an ever decreasing group of cryptography ignorant providers. EDIT: 2020-08-07 China believes TLS 1.3 privacy (hidden identity, not to be confused with confidentiality of data) is so effective they are going to block all TLS
So you're a developer or operations engineer (or both, DevOps) and work in a small team that either has no access to a Solution Architect. or you do but expected to re-architect solutions for security and reliabilty Get to know the AWS Well-Architected Framework and the new Operational Excellence Pillar
API Gateway is a service offered by AWS and was established originally as a code fork of thier CloudFront service and has evolved separately ever since. Although an interesting fact there has been little evidence to show any sort of relationship between the 2 services since API Gateway was released.