Hello,
I am trying to geocode an address using the Google API and R. So far, I have used the following code:

location<-c('120 Avenue de la Republique, 92120 Montrouge, France')
location <- gsub(' ', '+', location)
sensor<-c('FALSE')
sensor4url <- paste('sensor=', tolower(as.character(sensor)), sep = '')
posturl <- paste(location, sensor4url, sep = '&')
url_string <- paste('http://maps.googleapis.com/maps/api/geocode/json?address=', posturl, sep = "")
url_string <- URLencode(url_string)
gc <- fromJSON(paste(readLines(url(url_string)), collapse = ''))
gc

The above code has worked just fine for up to 2500 Google queries per day (which are free). My question: how can I modify the above code to insert a Google client ID and/or crypto key so as to run >2500 queries? Adding a 'client=...' and/or 'key=...' in the posturl line above does not seem to do the trick.

Thanks in advance,
fv
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