What is the best way to send data at intervals?

Question

JavaScript

An array with data comes from the front (about 100-200 username values).
Then, using this array, I make a request to Mongo.
Monga gives a new array (of user id).
I then need to send a request to the public api.
The public api does not allow you to send an array at once, but only one value per request.
It also has a limit of 30 requests per second.
From the ideas so far, split the input array into several 30 elements each, and send them in a loop through settimeout per second
.

Answer 1

Queues.