Make all DynamoDB Tables On-Demand - Use with caution ⚠️

update_tables.sh

for name in $(aws dynamodb list-tables | jq .TableNames)
do
    l=${#name} 
    if [ ${#name} -le 3 ]; then echo "Skipping name!"
    else
       short=${name:1:l-2} # clean json string representation of dataset
       if [ "${short: -1}" == '"' ]
         then short=${name:1:l-3}
       fi
       echo "Updating Table: ${short}"
       aws dynamodb update-table --table-name ${short} --billing-mode PAY_PER_REQUEST > "${short}_response.json"
       sleep 30 # long sleep so that tables have time to be updated (AWS has max limit of 50 tables updating at once)
   fi
done