put message to CloudWatch Logs

put_message_cloudwatch_logs.sh

#!/bin/bash
 
# region
export AWS_DEFAULT_REGION=ap-northeast-1
 
# CloudWatchLogs settings
LogGroupName="Test"
LogStreamName="App1"
 
# message put to CloudWatchLogs
Mess=$1
 
# remove "'"
Mess=`echo $Mess | sed -e "s/'//g"`
 
# token for put-log-event
UploadSequenceToken=$(aws logs describe-log-streams --log-group-name "$LogGroupName" --query 'logStreams[?logStreamName==`'$LogStreamName'`].[uploadSequenceToken]' --output text)
 
# timestamp for put-log-event
TimeStamp=`date "+%s%N" --utc`
TimeStamp=`expr $TimeStamp / 1000000`
 
# execute put-log-events
if [ "$UploadSequenceToken" != "" ]
then
  # token exists
  aws logs put-log-events --log-group-name "$LogGroupName" --log-stream-name "$LogStreamName" --log-events timestamp=$TimeStamp,message="$Mess" --sequence-token $UploadSequenceToken
else
  # no token exists
  aws logs put-log-events --log-group-name "$LogGroupName" --log-stream-name "$LogStreamName" --log-events timestamp=$TimeStamp,message="$Mess"
fi