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86 lines
2.5 KiB
Markdown
86 lines
2.5 KiB
Markdown
# Environment Variables
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> Control application configuration and behavior without changing code.
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Certain Electron behaviors are controlled by environment variables because they
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are initialized earlier than the command line flags and the app's code.
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POSIX shell example:
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```bash
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$ export ELECTRON_ENABLE_LOGGING=true
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$ electron
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```
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Windows console example:
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```powershell
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> set ELECTRON_ENABLE_LOGGING=true
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> electron
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```
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## Production Variables
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The following environment variables are intended primarily for use at runtime
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in packaged Electron applications.
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### `GOOGLE_API_KEY`
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Electron includes a hardcoded API key for making requests to Google's geocoding
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webservice. Because this API key is included in every version of Electron, it
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often exceeds its usage quota. To work around this, you can supply your own
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Google API key in the environment. Place the following code in your main process
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file, before opening any browser windows that will make geocoding requests:
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```javascript
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process.env.GOOGLE_API_KEY = 'YOUR_KEY_HERE'
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```
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For instructions on how to acquire a Google API key, visit [this page](https://www.chromium.org/developers/how-tos/api-keys).
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By default, a newly generated Google API key may not be allowed to make
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geocoding requests. To enable geocoding requests, visit [this page](https://console.developers.google.com/apis/api/geolocation/overview).
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### `ELECTRON_NO_ASAR`
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Disables ASAR support. This variable is only supported in forked child processes
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and spawned child processes that set `ELECTRON_RUN_AS_NODE`.
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## Development Variables
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The following environment variables are intended primarily for development and
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debugging purposes.
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### `ELECTRON_RUN_AS_NODE`
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Starts the process as a normal Node.js process.
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### `ELECTRON_ENABLE_LOGGING`
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Prints Chrome's internal logging to the console.
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### `ELECTRON_LOG_ASAR_READS`
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When Electron reads from an ASAR file, log the read offset and file path to
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the system `tmpdir`. The resulting file can be provided to the ASAR module
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to optimize file ordering.
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### `ELECTRON_ENABLE_STACK_DUMPING`
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Prints the stack trace to the console when Electron crashes.
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This environment variable will not work if the `crashReporter` is started.
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### `ELECTRON_DEFAULT_ERROR_MODE` _Windows_
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Shows the Windows's crash dialog when Electron crashes.
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This environment variable will not work if the `crashReporter` is started.
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### `ELECTRON_NO_ATTACH_CONSOLE` _Windows_
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Don't attach to the current console session.
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### `ELECTRON_FORCE_WINDOW_MENU_BAR` _Linux_
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Don't use the global menu bar on Linux.
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