How to pass the build hash as an environment variable in webpack?

Question

I\'ve got an internal application that\'s built using webpack that gets deployed frequently. In order to make bug reporting easier, I want to include an environment variable

Answer 1

https://github.com/webpack/docs/wiki/list-of-plugins#extendedapiplugin

ExtendedAPIPlugin

new webpack.ExtendedAPIPlugin()

Adds useful free vars to the bundle.

__webpack_hash__ The hash of the compilation available as free var.

This can't be used in the DefinePlugin() but it creates a global __webpack_hash__ variable that can be accessed from anywhere inside your bundle.

var hash = __webpack_hash__;