electron/docs/api/crash-reporter.md

crashReporter

Submit crash reports to a remote server.

Process: Main, Renderer

The following is an example of automatically submitting a crash report to a remote server:

const {crashReporter} = require('electron')

crashReporter.start({
  productName: 'YourName',
  companyName: 'YourCompany',
  submitURL: 'https://your-domain.com/url-to-submit',
  uploadToServer: true
})

For setting up a server to accept and process crash reports, you can use following projects:

• socorro
• mini-breakpad-server

Crash reports are saved locally in an application-specific temp directory folder. For a productName of YourName, crash reports will be stored in a folder named YourName Crashes inside the temp directory. You can customize this temp directory location for your app by calling the app.setPath('temp', '/my/custom/temp') API before starting the crash reporter.

Methods

The crashReporter module has the following methods:

crashReporter.start(options)

• options Object
  • companyName String (optional)
  • submitURL String - URL that crash reports will be sent to as POST.
  • productName String (optional) - Defaults to app.getName().
  • uploadToServer Boolean (optional) - Whether crash reports should be sent to the server Default is true.
  • ignoreSystemCrashHandler Boolean (optional) - Default is false.
  • extra Object (optional) - An object you can define that will be sent along with the report. Only string properties are sent correctly. Nested objects are not supported and the property names and values must be less than 64 characters long.
  • crashesDirectory String (optional) - Directory to store the crashreports temporarily (only used when the crash reporter is started via process.crashReporter.start)

You are required to call this method before using any other crashReporter APIs and in each process (main/renderer) from which you want to collect crash reports. You can pass different options to crashReporter.start when calling from different processes.

Note Child processes created via the child_process module will not have access to the Electron modules. Therefore, to collect crash reports from them, use process.crashReporter.start instead. Pass the same options as above along with an additional one called crashesDirectory that should point to a directory to store the crash reports temporarily. You can test this out by calling process.crash() to crash the child process.

Note: To collect crash reports from child process in Windows, you need to add this extra code as well. This will start the process that will monitor and send the crash reports. Replace submitURL, productName and crashesDirectory with appropriate values.

Note: If you need send additional/updated extra parameters after your first call start you can call setExtraParameter on macOS or call start again with the new/updated extra parameters on Linux and Windows.

 const args = [
   `--reporter-url=${submitURL}`,
   `--application-name=${productName}`,
   `--crashes-directory=${crashesDirectory}`
 ]
 const env = {
   ELECTRON_INTERNAL_CRASH_SERVICE: 1
 }
 spawn(process.execPath, args, {
   env: env,
   detached: true
 })

Note: On macOS, Electron uses a new crashpad client for crash collection and reporting. If you want to enable crash reporting, initializing crashpad from the main process using crashReporter.start is required regardless of which process you want to collect crashes from. Once initialized this way, the crashpad handler collects crashes from all processes. You still have to call crashReporter.start from the renderer or child process, otherwise crashes from them will get reported without companyName, productName or any of the extra information.

crashReporter.getLastCrashReport()

Returns CrashReport:

Returns the date and ID of the last crash report. If no crash reports have been sent or the crash reporter has not been started, null is returned.

crashReporter.getUploadedReports()

Returns CrashReport[]:

Returns all uploaded crash reports. Each report contains the date and uploaded ID.

crashReporter.getUploadToServer() Linux macOS

Returns Boolean - Whether reports should be submitted to the server. Set through the start method or setUploadToServer.

Note: This API can only be called from the main process.

crashReporter.setUploadToServer(uploadToServer) Linux macOS

• uploadToServer Boolean macOS - Whether reports should be submitted to the server

This would normally be controlled by user preferences. This has no effect if called before start is called.

Note: This API can only be called from the main process.

crashReporter.setExtraParameter(key, value) macOS

• key String - Parameter key, must be less than 64 characters long.
• value String - Parameter value, must be less than 64 characters long.

Set an extra parameter to be sent with the crash report. The values specified here will be sent in addition to any values set via the extra option when start was called. This API is only available on macOS, if you need to add/update extra parameters on Linux and Windows after your first call to start you can call start again with the updated extra options.

crashReporter.removeExtraParameter(key) macOS

• key String - Parameter key, must be less than 64 characters long.

Remove a extra parameter from the current set of parameters so that it will not be sent with the crash report.

crashReporter.getParameters()

See all of the current parameters being passed to the crash reporter.

Crash Report Payload

The crash reporter will send the following data to the submitURL as a multipart/form-data POST:

• ver String - The version of Electron.
• platform String - e.g. 'win32'.
• process_type String - e.g. 'renderer'.
• guid String - e.g. '5e1286fc-da97-479e-918b-6bfb0c3d1c72'
• _version String - The version in package.json.
• _productName String - The product name in the crashReporter options object.
• prod String - Name of the underlying product. In this case Electron.
• _companyName String - The company name in the crashReporter options object.
• upload_file_minidump File - The crash report in the format of minidump.
• All level one properties of the extra object in the crashReporter options object.