Check sync state of local node

check-node-sync.py

import json
import subprocess

# TODO: support chcking s1,s2,s3 nodes
REMOTE_NODE_URL = 'https://api.harmony.one'

def get_latest_headers(api=None):
    cmd = ['./hmy', 'blockchain', 'latest-header']

    if api != None:
      cmd = cmd + ['-n', api]

    res = subprocess.run(cmd, capture_output=True, encoding='utf8')

    return json.loads(res.stdout).get('result')

def print_block_info(label, block_headers):
    print(label + ": ", block_headers['blockNumber'], " @ ", block_headers['timestamp'])

local_headers = get_latest_headers()
beacon_headers = get_latest_headers(REMOTE_NODE_URL)

print_block_info("Local", local_headers)
print_block_info("Beacon", beacon_headers)

print("Delta: ", int(beacon_headers['blockNumber']) - int(local_headers['blockNumber']))