grest-ts

Appearance

@grest-ts/logger ​

Async context-aware logging library for Grest Framework.

Features ​

  • Multiple log levels (debug, info, warn, error, critical)
  • Async context propagation (per-request logging)
  • Pluggable loggers (console, custom)
  • Structured data logging

Quick usage example ​

typescript

GGLog.debug(this, "Doing something cool!", {coolSomethingId: something.id})

GGLog.info(this, "Doing something cool!", {coolSomethingId: something.id})

GGLog.warn(this, "Doing something cool!", {coolSomethingId: something.id})

GGLog.error(this, "Something went wrong", {coolSomethingId: something.id})

const error = new Error("Something went wrong!")
GGLog.error(this, error)
GGLog.error(this, "User registration flow failed!", error)

// All levels provide multiple ways to log messages:
GGLog[LEVEL](this, "Doing something cool!", {coolSomethingId: something.id})
GGLog[LEVEL](this, new Error("some error"))
GGLog[LEVEL](this, "My flow failed", new Error("some error"))

Documentation ​

  • Usage - How to use logging in your application.
  • Testing - How to test log output with testkit.
  • Extending - How to add custom loggers.