Ratnopam Chakrabarti, a software developer at Ericsson Inc., has been working on various IoT and machine-to-machine technologies. He recently focused on the AWS Reckognition API for image analysis. To use this API, he created an S3 bucket with a specific bucket policy that allows all users to store objects into the bucket and fetch objects from it. The API is then used to analyze images and infer labels with confidence scores, which are parsed using JSON and pushed into tags array before being stored in a Couchbase bucket. To run the photogallery node app, he uses environment variables for AWS access keys and S3 bucket name, ensuring that these values are not exposed to the world. This post is part of the Couchbase Community Writing Program.