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EC2-based Step Functions Worker
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{ | |
"Comment": "Simple example that gets status code and puts in SSM Parameter Store", | |
"StartAt": "process-input", | |
"States": { | |
"process-input": { | |
"Type": "Task", | |
"Resource": "arn:aws:states:::activity:process-input", | |
"ResultPath": "$", | |
"End": true | |
} | |
} | |
} |
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#!/usr/bin/env python | |
import boto3 | |
import time | |
import json | |
from botocore.config import Config as BotoCoreConfig | |
region = 'us-west-2' | |
boto_config = BotoCoreConfig(read_timeout=70, region_name=region) | |
sf = boto3.client('stepfunctions', config=boto_config) | |
activity_arn = 'arn:aws:states:::activity:process-input' | |
def processor(task_input): | |
print(json.loads(task_input)) | |
return json.dumps(task_input) | |
while True: | |
response = sf.get_activity_task( | |
activityArn=activity_arn, | |
workerName='step-function-worker' | |
) | |
if 'taskToken' not in response: | |
print('INFO: No task token') | |
else: | |
print(response['taskToken']) | |
print("===================") | |
activity_token = response['taskToken'] | |
task_input = response['input'] | |
result = processor(task_input) | |
sf.send_task_success(taskToken=activity_token, output=result) |
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