Thursday, February 16, 2017

Electron - Environment Variables

Environment Variables control application configuration and behavior without changing code. Certain Electron behaviors are controlled by environment variables because they are initialized earlier than the command line flags and the app’s code.

There are 2 kinds of environment variables encoded in electron, Production variables and Development variables.

Production Variables

The following environment variables are intended for use at runtime in packaged Electron applications.
Variable Description
GOOGLE_API_KEY Electron includes a hardcoded API key for making requests to Google’s geocoding webservice. Because this API key is included in every version of Electron, it often exceeds its usage quota. To work around this, you can supply your own Google API key in the environment. Place the following code in your main process file, before opening any browser windows that will make geocoding requests:
process.env.GOOGLE_API_KEY = 'YOUR_KEY_HERE'
ELECTRON_RUN_AS_NODE Starts the process as a normal Node.js process.
ELECTRON_FORCE_WINDOW_MENU_BAR (Linux Only) Don’t use the global menu bar on Linux.

Development Variables

The following environment variables are intended primarily for development and debugging purposes.
Variable Description
ELECTRON_ENABLE_LOGGING Prints Chrome’s internal logging to the console.
ELECTRON_ENABLE_STACK_DUMPING Prints the stack trace to the console when Electron crashes.
ELECTRON_DEFAULT_ERROR_MODE Shows the Windows’s crash dialog when Electron crashes.
To set any of these environment variables as true, set it in your console. For example, if you want to enable logging, then use the following:
For windows:
> set ELECTRON_ENABLE_LOGGING=true
For Linux:
$ export ELECTRON_ENABLE_LOGGING=true
Note that you'll need to set these environment variables every time you restart your computer. If you want to avoid doing so, add these lines to your .bashrc files.

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