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I came up with the following function to tap into the FourSquare trending venues API:
library("RCurl", "RJSONIO")
foursquare<-function(x,y,z){
w<-paste("https://api.foursquare.com/v2/venues/trending?ll=",x,"&radius=2000&oauth_token=",y,"&v=",z,sep="")
u<-getURL(w)
test<-fromJSON(u)
locationname=""
lat=""
long=""
zip=""
herenowcount=""
likes=""
for(n in 1:length(test$response$venues)) {
locationname[n] = test$response$venues[[n]]$name
lat[n] = test$response$venues[[n]]$location$lat
long[n] = test$response$venues[[n]]$location$lng
zip[n] = test$response$venues[[n]]$location$postalCode
herenowcount[n]<-test$response$venues[[n]]$hereNow$count
likes[n]<-test$response$venues[[n]]$likes$count
xb<-as.data.frame(cbind(locationname, lat, long, zip, herenowcount, likes))
}
xb$pulled=date()
return(xb)
}
where x=”lat,long”, y=oAuth_token, and z=date. You can find out your oAuth_token by signing into FourSquare and going to https://developer.foursquare.com/docs/venues/trending, click on the “try it out” button, then copy and the code that would be where the deleted box is.
an example:
philly<-foursquare("39.9572,-75.1691","XXXXDSAFAEWRFAEFRAAFDASDFASFD","20130304")
or you can scrape by running in a repeat function.
QED
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