When your job title should be “bug fixer”, you eat spaghetti code for lunch and your logs are useless, then it’s time to stop and refocus: a Data-Driven approach is what you need to turn your day around! This is why we developed Trace Lib, an AWS serverless based service designed to provide a high-capacity log storage and query system, hosting millions of tracing events and offering easy querying through an SQL-like API. Our use case addresses the need for observability in complex flows that exist within a hybrid product ecosystem, in a cost effective solution that definitely made our day!