Do you have experience posting pictures on Instagram programatically? How do you do it?
I have a Telegram bot (https://t.me/SocialMediaPosterBot) which I use to post to Instagram from channel and groups. For that, I send to the bot my username and password and he stores the authentication cookie in the database. Then, every time I send a picture to the group/channel he uses the cookie to post the picture and stores the updated cookie.
take a look : https://www.useloom.com/share/0b1bfb516d6e4bc885b9ab669ec182d7
nodejs app: https://www.npmjs.com/package/ig-upload
I've hacked together a small node app for this a couple of weeks back using a google spread for handling the content: https://github.com/Kinzi/instagram-post-bot – can be hosted for free on heroku or similiar... recommended for private use only as it uses instagrams internal API