CanaryScheduleInput - Amazon CloudWatch Synthetics


This structure specifies how often a canary is to make runs and the date and time when it should stop making runs.



How long, in seconds, for the canary to continue making regular runs according to the schedule in the Expression value. If you specify 0, the canary continues making runs until you stop it. If you omit this field, the default of 0 is used.

Type: Long

Valid Range: Minimum value of 0. Maximum value of 31622400.

Required: No


A rate expression or a cron expression that defines how often the canary is to run.

For a rate expression, The syntax is rate(number unit). unit can be minute, minutes, or hour.

For example, rate(1 minute) runs the canary once a minute, rate(10 minutes) runs it once every 10 minutes, and rate(1 hour) runs it once every hour. You can specify a frequency between rate(1 minute) and rate(1 hour).

Specifying rate(0 minute) or rate(0 hour) is a special value that causes the canary to run only once when it is started.

Use cron(expression) to specify a cron expression. You can't schedule a canary to wait for more than a year before running. For information about the syntax for cron expressions, see Scheduling canary runs using cron.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 1024.

Required: Yes

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: