Typescript Logger

This repository contains a simple, baseline logger setup for use in various Typescript apps. It is meant to be extensible. It comes with an optional morgan middleware setup function as well, for logging HTTP requests and responses.

Default Behavior

LOG_LEVEL

When environment LOG_LEVEL is set, it will be used as the winston log level.

Levels:

const levels = {
  error: 0,
  warn: 1,
  info: 2,
  http: 3, // optional level for http req & resp logging
  graphql: 4, // optional level for graphql req & resp logging
  debug: 5,
};

Example Usage

Generic Setup

You can use this logger in most generic Typescript functions.

TBD

For server-level specific logs:

• will get & embed the RELEASE_SHA environment variable into the log message metadata, if present

TBD

For lambda-level specific logs:

• will get & embed the RELEASE_SHA environment variable into the log message metadata, if present

TBD

For HTTP request & response specific logs via Morgan Express Middleware:

• will get & embed the RELEASE_SHA environment variable into the log message metadata, if present
• message will have all http headers for requests & responses

TBD

For HTTP specific logs via server context objects:

• will get & embed the RELEASE_SHA environment variable into the log message metadata, if present
• will get & embed the user id header, request id, and trace id request headers in log message metadata, if present

TBD

For GraphQL specific logs via server context objects & Apollo hooks:

• will get & embed the RELEASE_SHA environment variable into the log message metadata, if present
• will get & embed the user id header, request id, and trace id request headers in log message metadata, if present

TBD