A few questions on various "limits" with freshservice serverless apps

[zach_jones_noel (Jones Zachariah Noel N)]

Hey @David_Copenhaver,
Welcome to the Freshworks developer community!

@David_Copenhaver

setTimeout is a common method to create a blocking “pause” in the program flow, with that not being available, is there a feature in the framework I’m not finding to be able to introduce a “pause”? We need to detect rate limits, such as with your “request” api which will return a 429 code in the error object when exceeded. In this case, the app logic needs to pause, and retry. How then do we pause? (I’ve created and tested a “time” based approach but it’s really not a good way to simply pause, as it wastes cpu cycles). Does the framework provide another mechanism to handle this common need? We must detect a rate limit, pause, and retry. Is there no pause, but rather we are supposed to use the schedule feature and schedule a retry of the function x seconds in the future maybe?

One way to handle the rate limits is with a request template defined with retryDelay and maxAttempts where the platform will automatically retry after the set delay and also ensure it retries based on the configuration. Request template configuration docs.
And about the headers not present will check that up.

@David_Copenhaver

2. From doc: “The default app execution timeout is 20 seconds. If the request timeout is increased to 20, 25, or 30 seconds, the app execution timeout is extended to 40 seconds.”

How exactly do I make this change? I want to increase the app execution timeout to 40 seconds.

For request timeout increase, you can raise a ticket to us via dev-assist ticket.

@David_Copenhaver

Please let me know if that’s not the case. So what exactly happens on the 51st trigger? How can I know when this happens? Can it be increased?

SMI has a rate limit of 50 RPM and at 51st invocation, you would get a 429 error where we can increase that again with a dev-assist ticket to increase rate limits

The rate limit or request timeout increase is on a case-by-case basis, you can refer this - Get assistance in extending platform rate limits for your apps for more details on how to request and default rate limits.