Scenario: You're developing a serverless application that requires frequent access to a third-party API. How would you implement resource reuse to optimize performance and reduce costs?

  • Allocate more memory to Lambda functions
  • Increase the function timeout for API calls
  • Use VPC endpoints for API access
  • Utilize AWS Lambda Layers to cache API clients
Utilizing AWS Lambda Layers to cache API clients helps in reusing the initialized clients across function invocations, optimizing performance and reducing costs by minimizing repeated initializations.
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