How to Share Code Between Serverless Functions
Briefly

Inherently, serverless functions face challenges in code sharing due to their distributed nature. Updating shared code requires redeploying all dependent functions, complicating maintenance.
To optimize code sharing across serverless functions, developers often rely on packages like NPM, but many of these solutions remain application-specific, limiting reusability.
Techniques such as AWS Lambda Layers attempt to tackle code sharing limitations, yet they fall short under scenarios requiring broad code sharing among multiple serverless functions.
The complexity of maintaining a dependency graph increases significantly with the number of serverless functions, necessitating improvements in how code can be shared and managed.
Read at Medium
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