long lived facebook access token

fb-token-refresh

#!/usr/bin/env sh

# Turn a short-lived access token into a long(er) lived access token.
#   To use this you must first generate a short-lived access token using the
#   graph API (https://developers.facebook.com/tools/explorer/)
#
# NOTE: make sure you select your app under the "Application" dropdown. if you
#       don't you will see an error from this saying something about your app and
#       not having permission/access
#
# SEE: http://stackoverflow.com/questions/17197970/facebook-permanent-page-access-token

: ${FACEBOOK_APP_ID:="your app client id"}
: ${FACEBOOK_APP_SECRET:="your app client secret"}
: ${FBAPIV:="v2.6"}

do_request() {
  local url="${1}"
  curl -D /dev/stderr -s "${url}" | awk -F'&' '{print $1}' | awk -F= '{print $2}'
}

refresh_token() {
  local token="${1}"
  local url="https://graph.facebook.com/${FBAPIVS}/oauth/access_token?grant_type=fb_exchange_token&client_id=${FACEBOOK_APP_ID}&client_secret=${FACEBOOK_APP_SECRET}&fb_exchange_token=${token}"
  do_request "${url}"
}

usage() {
  echo "Usage: $(basename $0) <short-lived-token>"
  exit 1
}

main() {
  local token="${1}"
  refresh_token "${token}"
}

if [ $# -eq 0 ]; then
  usage
fi

main "$@"