create-evlog-enricher

To add derived context to logging events, you scaffold an evlog enricher using a factory function that returns a typed context handler. This approach safely augments events with structured data across your pipeline.

An evlog enricher is a module that augments logging events with derived contextual data. You need one when you must consistently merge structured information, such as extracted headers, into event fields without side effects.

You safely merge contextual data into event fields using built-in helper utilities that provide overwrite control. The enricher uses a merge function to ensure non-side-effect mutations when adding derived context.

Scaffolding a logging enricher requires completing six mandatory touchpoints across source, tests, docs, and references. This ensures a complete integration workflow with an Info interface and factory function.

You can extract HTTP headers and add them to your logging pipeline using a dedicated helper function. The enricher utility safely pulls header data and merges it into your event context.