A horizon server may be configured to only keep a portion of the Kuknos network’s history stored within its database. This error will be returned when a client requests a piece of information (such as a page of transactions or a single operation) that the server can positively identify as falling outside the range of recorded history.
As with all errors Horizon returns,
before_history follows the Problem Details for HTTP APIs draft specification guide and thus has the following attributes:
|The identifier for the error. This is a URL that can be visited in the browser
|A short title describing the error
|An HTTP status code that maps to the error
|A more detailed description of the error
|A token that uniquely identifies this request. Allows server administrators to correlate a client report with server log files