@mvf/logger v1.0.10

MVF Logger

Usage

Provides a consistent logging output for javascript applications.

To install the package

Run npm install @mvf/logger

How to use

Import log function of your choice and then use them to output a log message.

import { info, warning, error } from "@mvf/logger";

info("info message");
warning("info message");
error("info message");

The logger can also accept an object of extra data, which will be logged together with the message.

import { info } from "@mvf/logger";

info("info message", {
  clickId: "...",
  ...
});

Exceptions

Logger is configured to catch any unhandled exceptions and output them to the console in a json format, consistent with the other log messages.

Testing

Logger will be silent, it will not log anything, if ENVIRONMENT_FILE env variable is set to testing.

Formatting

Logger will format output using prettyPrint formatter if ENVIRONMENT_FILE env variable is set to development in all other cases json formatter will be used to ensure consistent log output.

Contributing

Setup

• Run make to build the container
• Run make shell to enter the container
• Run npm install to install dependencies

Refer to package.json for commands

After merging

After you have merged a PR to master, you need to rebuild and publish your changes.

1. Checkout master git checkout master && git pull
2. Use one of the following make publish commands to publish changes:
   • make publish kind=patch - Use this if your change is a bug fix and is backwards compatible.
   • make publish kind=minor - Use this if your change adds new functionality and is backwards compatible.
   • make publish kind=major - Use this if your change is not backwards compatible.