@fatso83/stacktrace-cli

stacktrace-cli

Retroactively show a source mapped location from a error message

Example:

You have such an error in your logs:

https://localhost:56962/app-bundle.js 129:600036 TypeError: Cannot read property 'map' of undefined

If you download then download app-bundle.js and app-bundle.js.map you can get the original source lines using this tool:

 npx stacktrace-cli dist/app-bundle.js* 129:600036
{
    "columnNumber": 56,
    "lineNumber": 78,
    "fileName": "webpack:///src/store/entitys/entitys-reducer.js",
    "functionName": "getEntitysById"
}
{
    "columnNumber": 56,
    "lineNumber": 78,
    "fileName": "webpack:///src/store/entitys/entitys-reducer.js",
    "functionName": "map"
}

How?

• Stacktrace.js
• Node HTTP
• Puppeteer

Stacktrace.js is wonderful. In theory. When trying to use it, the docs are missing all the bits on how to get this running. This is my attempt at solving an itch that needed scratching.

This was literally hacked together in 3 hours, so feel free to extract, refactor and package it up as the sweet little thing it could have been.