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Step 1 - Create a New Extension Project using the UIP VS Code Extension
As mentioned in Development Environment Set-Up, this tutorial will be using Visual Studio Code running in Windows and connected to a WSL (Windows Subsystem for Linux) project environment.
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from __future__ import (print_function)
from universal_extension import UniversalExtension
from universal_extension import ExtensionResult
from universal_extension import logger
class Extension(UniversalExtension):
"""Required class that serves as the entry point for the extension
"""
def __init__(self):
"""Initializes an instance of the 'Extension' class
"""
# Call the base class initializer
super(Extension, self).__init__()
def extension_start(self, fields):
"""Required method that serves as the starting point for work performed
for a task instance.
Parameters
----------
fields : dict
populated with field values from the associated task instance
launched in the Controller
Returns
-------
ExtensionResult
once the work is done, an instance of ExtensionResult must be
returned. See the documentation for a full list of parameters that
can be passed to the ExtensionResult class constructor
"""
# Get the value of the 'action' field
action = fields.get('action', [""])[0]
if action.lower() == 'print':
# Print to standard output...
print("Hello STDOUT!")
else:
# Log to standard error...
logger.info('Hello STDERR!')
# Return the result with a payload containing a Hello message...
return ExtensionResult(
unv_output='Hello Extension!'
)
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