Lambda Best Practices

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• Separate the lambda handler from the core logic (Handler should be used as the entry point)
• Use execution context to improve performance
• Use env variables to pass operational parameters to lambda function
• Avoid using the recursive code
• Control the dependencies in functions deployment packages (Can be put them in the lambda layer)
• Minimize deployment packages
• Example is, selectively include the libraries that are required
• For error like ServiceException use retry with ErrorEquals string to match the error