Adding dynamic POST parameters

I've had to do this many times. Here's a sample script that I use:

// Script to dynamically create POST parameters for next page

// Function to actually create the parameter
makeParam(name, value, index)
{
scrapeableFile.addHTTPParameter(new com.screenscraper.common.HTTPParameter(name,value,index,com.screenscraper.common.HTTPParameter.TYPE_POST));
}

// Dataset that contains each paramter as a dataRecord
params = session.getVariable("Next page parameters");
// Clear so large values don't linger in memory
session.setVariable("Next page parameters", null);

session.log("+++There are " + params.getNumDataRecords() + " parameters");

// Loop through each paramter
for (i=0; i
{
param = params.getDataRecord(i);

key = param.get("NAME");
// The the key is "eventtarget", I need to set the value from a seperate location
if (key.equals("__EVENTTARGET"))
value = session.getVariable("PAGE");
else
value = param.get("VALUE")!=null ? param.get("VALUE") : "";

session.log("Making param: " + key + "=" + value);
makeParam(key, value, i+1);
}

You see this script expects a session variable with all of the parameters, and loops through them. You need to run this on your scrapeable file before the file file is scraped. You can easily edit line #29 to move the default start point.