Joshua's Docs - Android Automagic App Cheatsheet and Notes
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Automagic - How Do I...

  • Print something to the global console
  • Initialize an object:
    • You have to start with empty object, using fromJSON
    fromJSON('{}')
    myObj['myKey'] = 'myVal';
  • Check if a variable has a value / is not null
    • Use getValue - getValue(String variableName, Object, defaultIfUndefined)
    isDefined = getValue('myVariable', false);
    if (isDefined) {
    	// Do something
    }
  • Use time comparisons and date utilities
    • Triggers will add a flow variable, triggertime, which is stored as a Number MS timestamp
      • Although it is a Number, it works with functions like addDay().
    • There are multiple built-in functions for getting date/time info:
      • Date getDate() (and variations) - get current date & time
      • Number getUptimeMillis() - MS since boot, excluding sleep time
      • Number getElapsedRealtimeMillis() - MS since boot, including sleep time
    • Use dateformat for formatting timestamps
    • There are multiple built-in functions for offsetting date and time
      • Date add___(Date d, Number a)
        • addDays(d, a)
        • addHours(d, a)
        • addMinutes(d, a)
        • addSeconds(d, a)
  • Persist a value across executions
    • There are many reasons why you might want to persist a value across executions; for example, for multiple counters, to track last execution time(s), or to cache API responses.
    • Approaches
      • By far, the easiest way to persist a value is with a Global variable. These are shared across flows, and persisted in non-volatile memory (reloaded if you restart Automagic).
        • Simply prefix your variable name with global_, such as global_myVar = "my string";
        • Be careful about conflicting global variable names
      • Writing and reading out of text files might be a decent approach for persistent large amount of data (such as stringified JSON) (limit of 1MB)

Automagic Example Script - Throttling Executions

This code can be used in an Expression condition step, to throttle executions of the flow to once per every 10 minutes.

throttleMins = 10;
lastExecutedAt = getValue('global_lastExecAct', 0);
minSinceLastExecuted = ((triggertime - lastExecutedAt) / 1000 / 60);
if (minSinceLastExecuted > throttleMins) {
	global_lastExecAct = triggertime;
	return true;
}
else {
	log("Skipping execution - last executed " + minSinceLastExecuted + " min. ago");
	return false;
}
Markdown Source Last Updated:
Tue Jun 23 2020 19:52:31 GMT+0000 (Coordinated Universal Time)
Markdown Source Created:
Tue Jun 23 2020 19:51:04 GMT+0000 (Coordinated Universal Time)
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