console-caller

console-caller

console-caller lets you easily print the call site of console functions. It can be useful in large codebases where there are a lot of logs. Do you want to easily find out which line of your code is printing that thing? This is the right module for you!

Installation

npm i --save-dev console-caller

or

yarn add --dev console-caller

Basic usage

This is the most basic way to use this tool.

require('console-caller')()
// All console calls will be intercepted.

Dynamically load console-caller

It's better if we include this tool only when developing, since it's not useful in a production environment.

const console = process.env.NODE_ENV === 'development' ? require('console-caller')() : ((typeof window !== 'undefined' && window.console) || (typeof global !== 'undefined' && global.console))
// All console calls will be intercepted when in development environment.

Per file usage

You can also configure console-caller to track only console calls for certain files in this way.

const console = require('console-caller')(Object.assign(Object.create(null), global.console))
// Placed on top of a file, it will only track the calls in that file.

Change stack trace offset

If you are using some abstractions between your logging functions and the real call to console APIs, you can set an arbitrary offset when splitting the stack trace. In this way you can also use this utility when a custom library is used for logging.

const console = require('console-caller')(Object.assign({}, ((typeof window !== 'undefined' && window.console) || (typeof global !== 'undefined' && global.console))), 10)
// Note the "10" as second argument. That is the offset of the splitted stack trace

Example

npm run example or yarn run example

╭─phra at debian in /home/phra/git/console-caller (master ✔)
╰─λ yarn run example                                                                                                                                             0 < 13:36:37
yarn run v0.22.0
$ env NODE_ENV=development node examples/example.js 
hi from module!
example {caller: [Object.<anonymous> (/home/phra/git/console-caller/examples/example.js:6:9)]}
hi from module! {caller: [module.exports (/home/phra/git/console-caller/examples/module.js:1:94)]}
example {caller: [Object.<anonymous> (/home/phra/git/console-caller/examples/example.js:9:9)]}
example {caller: [Object.<anonymous> (/home/phra/git/console-caller/examples/example.js:10:9)]}
example {caller: [Object.<anonymous> (/home/phra/git/console-caller/examples/example.js:11:9)]}
Done in 0.17s.