C# How to determine if Rate Limit was exceeded immediately after xxxx.Sms().Post(msg) call

Add this to your code and try it out

var eventsExtension = new EventsExtension();

await restClient.InstallExtension(eventsExtension);

void EventHandler(object sender, HttpMessages httpMessages)
{
  httpMessages.Headers.First(i => i.Key == "X-Rate-Limit-Remaining").Value.First();
  Console.WriteLine("Remaining: " + rateLimitRemaining);
}

eventsExtension.RequestSuccess += EventHandler;

Or use the rate limit extension directly

https://github.com/ringcentral/RingCentral.Net/tree/master/RingCentral.Net.RateLimit

For more rate limit headers, check out this article.

Thank you.  When I try to use either below, the compiler doesn’t recognize the class or the method.  Am I missing a using statement ?

new EventsExtension();

restClient.InstallExtension

Sorry for the quick answer without details and with some mistakes.

You need to install the Events extension package RingCentral.Net.Events. Then add the lib to your code

using RingCentral.Net.Events;

// Then this correct code

var eventsExtension = new EventsExtension();
await restClient.InstallExtension(eventsExtension);

void EventHandler(object sender, HttpMessages httpMessages)
{
  String rateLimitRemaining = httpMessages.httpResponseMessage.Headers.First(i => i.Key == "X-Rate-Limit-Remaining").Value.First();
  Console.WriteLine("Remaining: " + rateLimitRemaining);
}

eventsExtension.RequestSuccess += EventHandler;

Thank you.  I have try/catch blocks around my REST calls.  Before I was aware of this EventHandler Extension,  one of the blocks was catching the 429 error. I was unable to pin point which one, because it is difficult to make a 429 error occur, so I can not test at will.

If this Event Handler is installed, will my other try/catch blocks catch the 429 Error,  or will it only propagate to the newly installed EventHandler Extension?

Also,  what is the c# code to determine which call invoked the EventHandler Extension?  When I look at the structure of the return,  I can sort of get a hint of who called it,  but nothing specific.

Thanks again,

JFA

Please open and explore the httpMessages.httpRequestMessage object to find more. I think the event is fired even the API call hits the 429 error.

I recommend you to explore all the extensions and particularly the RateLimit extension.

https://github.com/ringcentral/RingCentral.Net/tree/master?tab=readme-ov-file#extensions