#!/usr/bin/python import sys, urllib, json, datetime, time from common_parse_utils import parse_utc, read_json, get_max_height if len(sys.argv) < 2: print "usage: python parse_chain.py host:port [min_height]" sys.exit() blocks_fetch = 20 # tendermint can't return more blocks tmaddress = sys.argv[1] max_height = get_max_height(tmaddress) min_height = int(sys.argv[2]) if len(sys.argv) > 2 else max(1, max_height - 49) last_non_empty = -1 last_fetched_height = min_height - 1 print "%6s %26s %7s %7s %8s %30s %30s %30s %30s %30s" % ("height", "block time", "txs", "acc.txs", "app_hash", "tx1", "tx2", "tx3", "tx4", "tx5") for height in range(min_height, max_height + 1): if height > last_fetched_height: last_fetched_height = min(height + blocks_fetch - 1, max_height) bulk_data = (read_json(tmaddress + "/blockchain?minHeight=%d&maxHeight=%d" % (height, last_fetched_height)))["result"]["block_metas"] data = bulk_data[last_fetched_height - height]["header"] num_txs = data["num_txs"] total_txs = data["total_txs"] app_hash = data["app_hash"] blocktimetxt = data["time"] blocktime = parse_utc(blocktimetxt) if num_txs > 0 or height == max_height or height == last_non_empty + 1: blockdata = read_json(tmaddress + "/block?height=%d" % height) txs = blockdata["result"]["block"]["data"]["txs"] txsummary = "" if txs: last_non_empty = height for tx in txs[0:5]: txstr = tx.decode('base64') if len(txstr) > 30: txsummary += "%27s... " % txstr[0:27] else: txsummary += "%30s " % txstr if len(txs) > 5: txsummary += "..." app_hash_to_show = "0x" + app_hash[0:6] if app_hash != "" else "--------" print "%5s: %s %7d %7d" % (height, datetime.datetime.fromtimestamp(blocktime), num_txs, total_txs), app_hash_to_show, txsummary else: if height == last_non_empty + 2: print "..."