More information about the socket API can be found here: How to take long captures that can't fit into memory at all at once? How do I use the Socket API?
The Socket API currently supports the raw export feature and the protocol specific export feature. However, the socket API does not yet support exporting the protocol search results.
For more information on the raw data export, see this article from the users guide: Saving, Loading, and Exporting Data
For more information about analyzer specific export, see this article from the users guide: Using Protocol Analyzers
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