I want to send json data(dictionary mentioned in dummy json data) & image data on server

We want to send info and image data in on server in JSON format using rest api.

We are sending parameters in dictionary format and image data with a key value pair

Please find the dummy JSON format

data = {"customerInfo":{"first_name":"Pk","last_name":"Pk"},"otp":"1223"} image = {Image data}

Please sugget me the code for above format