Automatically captured data
BugSnag automatically captures a variety of data to help you debug your errors. You may wish to avoid capturing some types of data, particularly if there are privacy implications for your users.
This documentation is for version 7+ of the BugSnag JavaScript notifier. If you are using older versions, we recommend upgrading to the latest release using our Upgrade guide. Documentation for the previous release can be found on our legacy pages.
User information is used to show you which errors are impacting the most users. Set your own user identifiers if you want to be able to find errors affecting individual users.
Browser
Data |
Default value |
Preventing collection |
User ID |
The user’s IP address |
Modify user in a callback or to prevent collection configure collectUserIp |
Node.js
Data |
Default value |
Preventing collection |
User ID |
The user’s IP address |
Modify user in a callback |
Information about the device can be useful to identify if an error is only occurring on some devices.
Browser
Data |
Default value |
Preventing collection |
Device ID |
A generated anonymous ID |
Configure generateAnonymousId |
Locale |
The locale of the browser |
Modify device in a callback |
User agent |
The user agent of the browser |
Modify device in a callback |
Node.js
Data |
Default value |
Preventing collection |
Hostname |
The result of os.hostname() on the device (or process.env.DYNO when running on Heroku) |
Modify device in a callback |
Runtime versions |
The value of process.versions which lists the version of Node.js and its dependencies |
Modify device in a callback |
Details about the request can be helpful to reproduce errors.
Browser
Data |
Default value |
Preventing collection |
Client IP |
The IP address |
Configure collectUserIp |
Request URL |
The URL including query parameters |
Modify request in a callback |
Node.js
Data |
Default value |
Preventing collection |
URL |
The full URL requested by the client |
Modify request in a callback |
Path |
The URL path of the request |
Modify request in a callback |
HTTP method |
The request method, e.g. GET , POST |
Modify request in a callback |
HTTP version |
The version of HTTP used in the client request |
Modify request in a callback |
Headers |
The HTTP request headers |
Modify request in a callback |
Query |
The parsed query string |
Modify request in a callback |
Body |
The request body |
Modify request in a callback |
Parameters |
The parameters as defined by the route handler |
Modify request in a callback |
Connection |
Info from the underlying TCP connection: remoteAddress , remotePort , bytesRead , bytesWritten , localPort , localAddress and IPVersion |
Modify request in a callback |
Breadcrumbs
Breadcrumbs are automatically recorded for common actions and can be helpful to reproduce errors.
Node.js
Browser
Modifying error information may affect error grouping.
Browser
Data |
Default value |
Preventing collection |
Context |
The pathname of the URL |
Modify context in a callback |
Error class |
The class of the error that occurred |
Modify errors[].errorClass in a callback |
Error message |
The message of the error that occurred |
Modify errors[].errorMessage in a callback |
Inline script content |
The contents of an inline script where an error occurred |
Modify errors[].stacktrace in a callback |
Stack trace |
The URL of the file where the error occurred, method and line number |
Modify errors[].stacktrace in a callback |
Node.js
Data |
Default value |
Preventing collection |
Context |
The pathname or full URL (only when handling a request) |
Modify context in a callback |
Error class |
The class of the error that occurred |
Modify errors[].errorClass in a callback |
Error message |
The message of the error that occurred |
Modify errors[].errorMessage in a callback |
Stack trace |
The URL of the file where the error occurred, method and line number and surrounding code |
Modify errors[].stacktrace in a callback |