Build a app to take a product database and auto import information for the products to other selling apps automatically

We died a thousand that store return items a week is so time-consuming to list them all over and over and over again for every site we want to put them on we want to be able to easily scan the barcode that would then generate a file for that item then the app would open the camera and the user would take photos of the item then after photos are done we could open up a page for notes on condition of the item then it would open another page for shipping info like dimensions and weight a vitamin Packaging. And then this could easily be done one time then for each item until this easily on multiple sites without having to go to each site and spend the time to list it I would prefer the language of the code be wrote in python in a little JavaScript is okay to. We basically want to be able to list the product one time and it fall across multiple websites and apps automatically like with OfferUp it would have to be a robot I believe to be able to post and upload the items for sale on there's app I believe if it had the dictionary file from the product catalog and it knew all the steps to take to input them like a user would it would work,