onlineParser/server_code/ParserServer.py

import anvil.tables as tables
import anvil.tables.query as q
from anvil.tables import app_tables
import anvil.server

import yaml
import json 
import pprint

# This is a server module. It runs on the Anvil server,
# rather than in the user's browser.
#
# To allow anvil.server.call() to call functions here, we mark
# them with @anvil.server.callable.
# Here is an example - you can replace it with your own:
#
@anvil.server.callable
def parse_yaml(yaml_data):
  try:
    return (0,pprint.pformat(yaml.safe_load(yaml_data), indent=2),"",0,0)
  except yaml.YAMLError as exc:
    return (1,pprint.pformat(yaml_data, indent=2), exc.problem, exc.problem_mark.line, exc.problem_mark.column)


@anvil.server.callable
def parse_json(json_data):
  try:
    return (0,pprint.pformat(json.loads(json_data), indent=2),"",0,0)
  except json.JSONDecodeError as exc:
    return (1,pprint.pformat(json_data, indent=2), exc.msg, exc.lineno, exc.colno)