Number of API Calls Consumed while Using messaging Service

Will the data Size in API Request Sent from the Client Part in case of Publish vary upon the Number of followers in a Channel to be published , or is it a 1 Time API Call Operation ?

If I Send One 'Publish ’ API Request to a Channel which has 1000 Subscriber, How much API call does it makes 1 , or 1000 ?
Regards,
Pujan

If I Send One 'Publish ' API Request to a Channel which has 1000 Subscriber, How much API call does it makes 1 , or 1000 ?

1 API call to publish
1000 pub/sub messages delivered.

Thanks Marks :slight_smile: