check_transactions.py

import requests
import json
import time

query = """query {
  pooledUserCommands {
    hash
  }
}"""

url = 'http://localhost:3085/graphql'

while True:
    time.sleep(5)
    r = requests.post(url, json={'query': query})
    if r.status_code != 200:
        print "request failed: ", r.text
    else:
        data = json.loads(r.text)
        hashes = set(map(lambda x: x['hash'], data['data']['pooledUserCommands']))
        target_hashes = set(['CkpYSMrZ47dGY1Pu2phsn4DW4RgVUVupqva2jq2eux9RAEYRP7oTn'])
        intersections = hashes & target_hashes
        if len(intersections) > 0:
            print intersections