How to send many axios requests without loss?

Question

API

How can you send more than 500 requests to the server without losing data?

That is, a request is sent (from 150 to 500 in total), based on the data of which another 1 to 4 requests are sent (150 * 4 - 600 requests). When executing this algorithm, a 503 error occurs, or data is missing.

I think that it is possible to solve the problem with a delay between requests that are formed as a result of the main one.

Answer 1

I would look for errors on the server. 503 is clearly not normal behavior, and 600 requests is no load at all.
Is your service?