import json
@frappe.whitelist(allow_guest=True)
def create_consumer(**args):
doc1 = frappe.new_doc("pq_consumer")
# Retrieve the child table data from the POST request
consumer_doctypes = json.loads(args["consumer_doctypes"])
# Create child table entries
for data in consumer_doctypes:
child_table_entry = doc1.append("child_table_fieldname", {})
child_table_entry.field1 = data["field1"]
child_table_entry.field2 = data["field2"]
# Set other fields as per your child table structure
# Set other fields of the main document
doc1.callback_url = args["current_site_url"]
doc1.api_key = args["api_key"]
doc1.api_secret = args["api_secret"]
doc1.user = args["user"]
# Save the document
doc1.save()