ISteamPublishedItemVoting – Steam Web API Documentation

https://partner.steam-api.com/ISteamPublishedItemVoting/ItemVoteSummary/v1/

Name	Type	Required	Description
steamid	uint64	Yes	Steam ID of user
appid	uint32	Yes	appID of product
count	uint32	Yes	Count of how many items we are querying
publishedfileid[0]	uint64[]	No	The Published File ID who's vote details are required

https://partner.steam-api.com/ISteamPublishedItemVoting/UserVoteSummary/v1/

Name	Type	Required	Description
steamid	uint64	Yes	Steam ID of user
count	uint32	Yes	Count of how many items we are querying
publishedfileid[0]	uint64[]	No	A Specific Published Item