[BUG]: Two or more iCal pulls from one Exchange Server

[jroehler23]

Describe the bug
I have several public calendars on my Exchange server. When two triggers or the event sensors afterwards query at the same second, I get a 503 error from Exchange.

Screenshots
If applicable, add screenshots to help explain your problem.

**node-red-contrib-ical-events

• Version 2.2.0
• node-red version 2.2.0
• nodejs version
• iCal from Exchange 2019

Logs / Additional context
Add any other context about the problem here.

You can send me a debug log, like described here: https://naimo84.github.io/kalender-events/guide/debug.html

[naimo84]

Hi @jroehler23,

unfortunately I have no Exchange Server to test this.

After some searching, I found this (german) post in the FHEM forum https://forum.fhem.de/index.php/topic,110635.15.html?PHPSESSID=8b4ddtco8fqoo76pkvjjfgb4d0

It seems, that the exchange server can't handle two requests at the same time.

Can you try to put some delay between the requests? Because I've no idea how to handle this on the code side ;)

Greets,
BEnjamin