[AWS] S3 Storage Classes and Versioning

S3 Storage Classes (Storage Tier) – cost, durability, and availability – can be changed manually or using lifecycle policies.

Link: https://aws.amazon.com/s3/storage-classes/

  • Object Durability: The percentage over a one-year period that an object in S3 will not be lost.
  • Object Availability: The percentage over a one-year period that an object in S3 will be accessible.
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[AWS] API Gateway

API Gateway is a fully managed API endpoint service that creates, manages, publishes, monitors, secures, and scales APIs. API Gateway can use other AWS services (Lambda, DynamoDB) for compute and store.

https://aws.amazon.com/api-gateway/

  • API (Application Programming Interface): Applications use APIs to communicate with other applications.
  • API Gateway is often used as the front door to a serverless application.
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