Skip to main content
To help you keep an eye on errors and performance issues AppSignal allows you to provide the extra context by adding additional data to requests.

​
Request Parameters

Request parameters are both request query parameters and POST request payloads. AppSignal captures these parameters to help you understand what specific input may have triggered an error or performance issue.

​
Request Session Data

Request session data are values stored in a user’s session, such as preferences and state. This data can help debug issues with specific states of a user session.

​
Request Headers

Request headers include metadata about the HTTP request, such as the User-Agent, Content-Type, and custom headers. Capturing these can help you debug issues related to browsers, platforms, API versions, etc.

​
Function parameters

Function parameters are the parameters that background jobs or scripts start with. Capturing them can help you debug issues related to the initial context of those scripts.

​
Custom Data

Custom data lets you attach any additional information you consider useful that does not fit in any of the other data categories.