Tailing logs

Zappa provides a facility for watching the logs related to your deployment. You can simply use the following command:

$ zappa tail production

This will print all logs related to HTTP requests and AWS events. If you want to print logs related to HTTP requests, you can simply pass the --http argument:

$ zappa tail production --http

You can reverse the preceding command with non-HTTP events and log messages by simply using the following code::

$ zappa tail production --non-http

You can also limit the log with respect to time using the --since argument:

$ zappa tail production --since 1h # 1 hour
$ zappa tail production --since 1m # 1 minute
$ zappa tail production --since 1mm # 1 month  

You can also filter the logs with the --filter argument, for example:

$ zappa tail production --since 1h --http --filter “POST”

This will show only HTTP POST requests for the last hour. This uses the AWS CloudWatch log-filter pattern (http://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/FilterAndPatternSyntax.html).