SIMPLE STORAGE SERVICE (S3)

What is CORS?

Cross-Origin Resource Sharing (CORS):

an HTTP-header based mechanism that

allows a server to indicate any origins (domain, scheme, or port) other than its own

from which a browser should permit loading resources.

CORS also relies on a mechanism by which
browsers make a “preflight” request to the server hosting the cross-origin resource,
in order to check that the server will permit the actual request.
Access-Control-Request-Method: POST
Access-Control-Request-Headers: X-PINGOTHER, Content-Type
the server response
Access-Control-Allow-Origin: https://foo.example
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Headers: X-PINGOTHER, Content-Type
Access-Control-Max-Age: 86400

Alt text CORS Configuration on the Cross-Origin

Alt text CORS: Simple Request & Preflight Request

[ASSOCIATE] S3 Events (4:32)

[ASSOCIATE] S3 Access Logs (3:05)

S3 Requester Pays (4:36)

Alt text S3 Requester Pays: Requester pays for the requests and data transfer out from the bucket

[ASSOCIATE] S3 Object Lock (9:52)

Section Quiz - S3

Notes for AWS Developer Associate (Cantrill course)