Structured JSON logging: design a schema that lasts
Define meaningful fields, preserve data types, and evolve your event schema without breaking downstream readers.
Logging foundations
Start with a contract, not a wall of text.
Explore what a log API does, how structured events work, and why stable field meanings make every downstream tool more useful. These guides focus on the producer-to-reader contract: identifiers, timestamps, types, and schema evolution.
Your reading path.
Begin with the log API guide to separate emission, ingestion, and querying. Then use the JSON schema guide to turn those boundaries into a field dictionary and a realistic fixture suite.
What is a log API? A practical developer’s guide
Understand logging libraries, ingestion endpoints, and query interfaces—and build an event contract that connects them.
ONE EVENT IS A GOOD START
Make your next log more useful.
Start with a clear schema. Keep the context that matters.