Make multiple management API calls

[Manju]

Have a csv file(1000 entries) with app details like product, developer, custom attributes. 

Need to convert that csv file to json

Then iterate over the json and Build a POST call to management API by building the url with proper headers and payload from the json array. This has to be done for each json entry.

Can we achieve this with javascript policy? If not, please suggest how can we handle this?