Fetch many ids at once

[ghost]

Is your feature request related to a problem? Please describe.
This is related to #11 due to Instagram rate limit.

Describe the solution you'd like
Instead of sending many request one by one into the api, it would be better to just send one request that will achieve the same thing.

For example I subscribed into 16278726 and 217723373, bbcnews and cnn respectively.
So instead of sending GET requests for each https://i.instagram.com/api/v1/feed/reels_media/?reel_ids=16278726 and https://i.instagram.com/api/v1/feed/reels_media/?reel_ids=217723373, you can just send 1 GET request of https://i.instagram.com/api/v1/feed/reels_media/?reel_ids=16278726&reel_ids=217723373.

Additional context
The reels_media array returned from this solution will be a list of each subscriptions Instagram Stories, so if bbcnews and cnn both has an active Instagram story reels_media[0] will be bbcnews and reels_media[1] will be cnn. Keep in mind that Instagram account that has no active Instagram story won't be listed in reels_media.

I'd like to open a PR, but I'm not really confident with my understanding of javascript.

[chriskyfung]

Thanks for your suggestion!

I believe the current version should be ample for regular usages, such as news cutting and following close friends' stories.
It won't reach the rate limit unless requesting the API with a high frequency, e.g. run the script every minute for web scraping sites and invading people's privacy.