MyTodoList

high overview requirements:

• Expose as REST API with HTTPS.
• Serverless architecture.
• Users should be able to directly interact with their own folder in S3.
• Users should authenticate through a managed serverless service.
• The users can write and read to-dos, but they mostly read them.
• The database should scale and have some high read throughput.

Solution¶

• Serverless REST API: HTTPS
  • API Gateway
  • Lambda
  • DynamoDB
• Cognito to generate temp credentials with STS to access S3 bucket with restricted policy.
• App users can directly access AWS resources this way.
  • Pattern can be applied to DynamoDB, Lambda.
• Caching the reads on DynamoDB using DAX.
• Caching the REST request at the API Gateway level.

Giving users access to S3¶

High read throughput, static data¶

adding DAX caching layer to increase performance since most queries are reads.

can also cache some responses in the API Gateway¶