Many services use a throttling pattern to control the resources they consume, imposing limits on the rate at which other applications or services can access them. You can use a rate limiting pattern to help you avoid or minimize throttling errors related to these throttling limits and to help you more accurately predict throughput.
A rate limiting pattern is appropriate in many scenarios, but it is particularly helpful for large-scale repetitive automated tasks such as batch processing.
https://learn.microsoft.com/en-us/azure/architecture/patterns/rate-limiting-pattern
