Get Bearer Token (shell function)

bearer_token.sh

function bearer_token () {
  local CONSUMER_API=$1
  local CONSUMER_SECRET=$2
​
  if [ -z "$CONSUMER_API" ] || [ -z "$CONSUMER_SECRET" ] ; then
    echo "Usage: ${FUNCNAME[0]} <consumer_api_key> <consumer_secret>"
    return 1
  fi
​
  curl -s -XPOST -H "Authorization: Basic $(echo -n $CONSUMER_API:$CONSUMER_SECRET | base64)" -H "Content-type: application/x-www-form-urlencoded; charset: utf-8" -d "grant_type=client_credentials" https://api.twitter.com/oauth2/token | jq -r .access_token
}