react-native-firebase/docs/v2/modules/crash.md

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# Crash Reporting
RNFirebase provides crash reporting for your app out of the box. Please note crashes do not appear in real-time on the console, they tend to take a number of hours to appear.
## Enabling/Disabling Crash Reporting
By default crash reporting is enabled. If you want to disable reporting, call `setCrashCollectionEnabled(enabled: Boolean)`:
```js
firebase.crash().setCrashCollectionEnabled(false);
```
To check if crash reporting is currently enabled, call `isCrashCollectionEnabled(): Promise<boolean>`:
```js
firebase.crash().isCrashCollectionEnabled()
.then((enabled) => {
if (enabled) {
console.log('Crash Reporting is currently enabled');
}
});
```
## Manual Crash Reporting
If you want to manually report a crash, such as a pre-caught exception this is possible by using the `report` method.
```javascript
try {
initSomeSDK();
} catch (e) {
firebase.crash().log('Some SDK failed to boot!');
firebase.crash().report(e);
}
```
### log
Logs a message that will appear in a subsequent crash report.
`firebase.crash().log(String message);`
### logcat
- **Android**: Logs a message that will appear in a subsequent crash report as well as in [logcat](https://developer.android.com/studio/command-line/logcat.html).
- **iOS**: Logs the message in the subsequest crash report only (same as `log`).
`firebase.crash().logcat(int level, String tag, String message);`
### report
Files a crash report, along with any previous logs to Firebase. An [Error](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) object must be passed into the report method.
`firebase.crash().report(Error, int maxStackSize)`.