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Conductor python client

Project description

Python client for Conductor

Python client for Conductor provides two sets of functions:

  1. Workflow management APIs (start, terminate, get workflow status etc.)
  2. Worker execution framework

NOTE: This repository has been forked from Netflix:conductor's client/python folder. Apart from the results of renaming the module from conductor to pyconductor, (as pip already contains a conductor module), there are no code changes. This repository is mostly meant to act as an easy way to install the python client for Netflix:conductor. There are also attempts made to add documentation to the client overall. As far as possible, the library will be kept in sync with the upstream branch.


pip install pyconductor

Using Workflow Management API

Python class WorkflowClient provides client API calls to the conductor server to start manage the workflows.


import sys
from pyconductor import conductor
import json

def getStatus(workflowId):

	workflowClient = conductor.WorkflowClient('http://localhost:8080/api')

	workflow_json = workflowClient.getWorkflow(workflowId)
	print json.dumps(workflow_json, indent=True, separators=(',', ': '))

	return workflow_json

Task Worker Execution

Task worker execution APIs facilitates execution of a task worker using python client. The API provides necessary mechanism to poll for task work at regular interval and executing the python worker in a separate threads.


The following python script demonstrates workers for the kitchensink workflow.

from pyconductor.ConductorWorker import ConductorWorker

def execute(task):
	return {'status': 'COMPLETED', 'output': {'mod': 5, 'taskToExecute': 'task_1', 'oddEven': 0}, 'logs': ['one', 'two']}

def execute4(task):
	forkTasks = [{"name": "task_1", "taskReferenceName": "task_1_1", "type": "SIMPLE"},{"name": "sub_workflow_4", "taskReferenceName": "wf_dyn", "type": "SUB_WORKFLOW", "subWorkflowParam": {"name": "sub_flow_1"}}];
	input = {'task_1_1': {}, 'wf_dyn': {}}
	return {'status': 'COMPLETED', 'output': {'mod': 5, 'taskToExecute': 'task_1', 'oddEven': 0, 'dynamicTasks': forkTasks, 'inputs': input}}

def main():
	print 'Hello World'
	cc = ConductorWorker('http://localhost:8080/api', 1, 0.1)
	for x in range(1, 30):
		if(x == 4):
			cc.start('task_{0}'.format(x), execute4, False)
			cc.start('task_{0}'.format(x), execute, False)
	cc.start('task_30', execute, True)

if __name__ == '__main__':

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