Notes

from service_now import update_service_now_cr

# A dictionary to map the next state based on the current state
state_transition = {
'New': 'Scheduled',
'Scheduled': 'Implement',
'Implement': 'Closed'
}

# Lambda handler to update ServiceNow CR state automatically
def lambda_handler(event, context):
# Get the CR ID from the event or the environment
change_request_id = event.get('CHANGE_REQUEST_ID')

if not change_request_id:
return {
"statusCode": 400,
"body": "Missing Change Request ID (CHANGE_REQUEST_ID)"
}

# Get the current state from the event (or retrieve it from ServiceNow API if needed)
current_state = event.get('current_state', 'New')
closure_notes = event.get('closure_notes', 'Automatically moved to the next state.')

# Determine the next state based on the current state
next_state = state_transition.get(current_state)

if not next_state:
return {
"statusCode": 200,
"body": f"Change Request {change_request_id} is already in the 'Closed' state."
}

# Call the function to update the ServiceNow CR to the next state
result = update_service_now_cr(change_request_id, next_state, closure_notes)

if result:
return {
"statusCode": 200,
"body": {
"message": f"ServiceNow CR {change_request_id} updated from {current_state} to {next_state}",
"next_state": next_state
}
}
else:
return {
"statusCode": 500,
"body": f"Failed to update ServiceNow CR {change_request_id} to {next_state}"
}