is there a way to automate capturing of raw data from packets in wireshark

Hi everyone, I am working on a project that requires me to create a plug-in for wireshark that extracts raw data from packets and analyzes them. Hence I wanted to know if there is any way to do that. I tried to look for wireshark api's but am not able to get much from it. What I basically need to do is to scan through the raw data of each packet and find certain information to check whether the packet is of interest or not.

Thanks in advance,

Regards, Shobhit.