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Building a Serverless File Upload Pipeline: API Gateway, Lambda, S3, and SNS

A step-by-step walkthrough of building a serverless file upload pipeline using API Gateway, Lambda, S3, and SNS , wiring four AWS services together from scratch.

May 12, 2026

#AWS#api-gateway

Breaking Lambda to Learn It: S3 Triggers, Permissions, and Pitfalls

A hands on walkthrough of wiring S3 to Lambda and what I learned by intentionally breaking permissions to understand execution roles vs resource based policies.

May 4, 2026

#AWS#aws-lamda