electron/docs/api/net-log.md
Shelley Vohr d87b3ead76 chore: remove promisification deprecation callbacks (#17907)
* chore: remove promisification deprecation callbacks

* update docs

* fix smoke test

* fix executejs issue

* cleanup leftovers

* fix webContents.executeJavaScript tests

* cleanup WebContents.prototype.takeHeapSnapshot

* fix "sets arbitrary webContents as devtools" test

* fix executeJavaScriptInFrame related tests
2019-04-30 07:08:32 -07:00

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Markdown

# netLog
> Logging network events for a session.
Process: [Main](../glossary.md#main-process)
```javascript
const { netLog } = require('electron')
app.on('ready', async function () {
netLog.startLogging('/path/to/net-log')
// After some network events
const path = await netLog.stopLogging()
console.log('Net-logs written to', path)
})
```
See [`--log-net-log`](chrome-command-line-switches.md#--log-net-logpath) to log network events throughout the app's lifecycle.
**Note:** All methods unless specified can only be used after the `ready` event
of the `app` module gets emitted.
## Methods
### `netLog.startLogging(path)`
* `path` String - File path to record network logs.
Starts recording network events to `path`.
### `netLog.stopLogging()`
Returns `Promise<String>` - resolves with a file path to which network logs were recorded.
Stops recording network events. If not called, net logging will automatically end when app quits.
## Properties
### `netLog.currentlyLogging`
A `Boolean` property that indicates whether network logs are recorded.
### `netLog.currentlyLoggingPath`
A `String` property that returns the path to the current log file.