- RESTful API tutorial: https://www.restapitutorial.com/
- HTTP status codes: https://tools.ietf.org/html/rfc7231, https://www.restapitutorial.com/httpstatuscodes.html
- OSI model explanation: https://www.youtube.com/watch?v=vv4y_uOneC0
- API Gateway pricing: https://aws.amazon.com/api-gateway/pricing/
- API Gateway service limits: https://docs.aws.amazon.com/apigateway/latest/developerguide/limits.html
- API Gateway Management API reference for version 1 and 2: https://docs.aws.amazon.com/apigateway/latest/developerguide/api-ref.html
- How to SigV4 sign a request: https://docs.aws.amazon.com/general/latest/gr/sigv4_signing.html
- Setting up client SSL certificates: https://docs.aws.amazon.com/apigateway/latest/developerguide/getting-started-client-side-ssl-authentication.html#generate-client-certificate