How to test performance on API as if 10's of thousands of requests are being sent

Basically, my site only has maybe 50-100 per day. But I want to structure the code, threads, and infrastructure that if 1000s were to come in a second, my site can handle it and not lag.Can anyone recommend libraries where I can test this and perhaps view the performances?

Submitted August 26, 2019 at 03:01PM by sterling729