Question 1

How do I use aws-lib with IAM roles on EC2?

Accepted Answer

Instantiate the client without passing credentials; aws-lib will automatically fetch them from the EC2 metadata API, as demonstrated in the IAM role support example where no keys are needed for EC2 calls.

Question 2

aws-lib vs AWS SDK for Node.js: which is better?

Accepted Answer

Choose aws-lib for simplicity and extensibility with core AWS services, but the official AWS SDK is better for full service coverage, TypeScript support, and AWS-backed updates. aws-lib is lighter but may lack features.

Question 3

How can I add support for a new AWS service in aws-lib?

Accepted Answer

Follow the pattern of existing clients in the lib directory, create a new client file, and submit a pull request with tests, as guided in the contributing section which encourages extensibility through community efforts.

Question 4

Does aws-lib support AWS S3 or Lambda?

Accepted Answer

No, based on the README, aws-lib does not list S3 or Lambda among its supported services; you would need to use the official AWS SDK or extend aws-lib yourself, which requires manual work.

Question 5

How do I handle errors in aws-lib API calls?

Accepted Answer

Errors are passed in the callback's first parameter, but the library provides basic error responses without detailed categorization or retry mechanisms, so you may need to implement custom error handling for production use.

Question 6

Is aws-lib still actively maintained?

Accepted Answer

The README shows a list of contributors but no recent activity dates; for critical projects, check the GitHub repository for latest commits or consider the official AWS SDK for reliable, ongoing support and updates.

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