How to determine that all asynchronous operations have completed?

Question

JavaScript

Hello.
There is an async method in which, first, for an array of data, a get request is made for each element of this array, then it resolves

const responses = await Promise.all(responsePromises);

Next, you need to go through the responses and pull the post request:

items.forEach((item, itemIndex) => {
          responses.forEach((res, resindex) => {
            if (itemIndex === resIndex) {
              axios.post(res.post_url, item, config);
            }
          });
        });

At the end of all these posts, you need to throw out a notification. How to do it?

Answer 1

What prevents to apply Promise.all once again? Instead of nested forEach's, it will be something like this:

Promise.all(items.map((item, index) => axios.post(responses[index], item, config)))