Like or unlike a venue

https://api.foursquare.com/v2/venues/VENUE_ID/like
Allows the acting user to like or unlike a venue.
HTTP MethodPOST
Requires Acting UserYes (learn more)
Parameters
All parameters are optional, unless otherwise indicated.
VENUE_IDXXX123YYYYrequired The venue to like or unlike.
set1If 1, like this venue. If 0 unlike (un-do a previous like) it. Default value is 1.
Response fields
likesUpdated count and groups of users who like this venue. Groups generally include friends and others (indicating the relationship to the acting user), but are subject to change.