If you want to download pcaps via the API, the following are examples on how to do that.

The following is an example of how a Python script could be used to download packet captures from Security Analytics through the Packet Analyzer API.

from SoleraConnector import *
sc = SoleraConnector("admin","API_Key_Here","Security_Analytics_IP_Address")
data = {'pcap':'/timespan/2015-04-30T16:07:20+08:00_2015-04-30T16:09:48+08:00/import_id/46/data.pcap','pcapType':'pcap','filter':'ip.addr==10.0.0.1 and ip.addr==10.0.0.1'}
sc.callAPI("GET","/packet_analyzer/download",data, "filename.pcap");

If this is not an imported packet capture, we can use the following :

from SoleraConnector import *
sc = SoleraConnector("admin","API_Key_Here","Security_Analytics_IP_Address")
data = {'pcap':'/timespan/2015-04-30T16:07:20+08:00_2015-04-30T16:09:48+08:00/data.pcap','pcapType':'pcap','filter':'ip.addr==10.0.0.1 and ip.addr==10.0.0.1'}
sc.callAPI("GET","/packet_analyzer/download",data, "filename.pcap");

Note : admin : An account with rights to download the packet capture.
API_Key_Here : API Key for username admin
Security_Analytics_IP_Address : IP Address of your Security Analytics