1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
import os
import sys
import binascii
import argparse
import web3
from autobahn import xbr
from test_accounts import addr_owner, addr_edith_consumer, addr_frank_consumer, markets, hl
def main(accounts):
for market in markets:
for actor in market['actors']:
if actor['type'] == xbr.ActorType.CONSUMER:
amount = 100 * 10**18
result = xbr.xbrtoken.functions.approve(xbr.xbrnetwork.address, amount).transact({'from': actor['addr'], 'gas': 1000000})
if not result:
print('Failed to allow transfer of tokens for payment channel!', result)
else:
print('Allowed transfer of {} XBR from {} to {} for opening a payment channel'.format(amount, actor['addr'], xbr.xbrnetwork.address))
# openPaymentChannel (bytes16 marketId, address consumerDelegate, uint256 amount) public returns (address paymentChannel)
txn = xbr.xbrnetwork.functions.openPaymentChannel(market['id'], actor['delegate'], amount).transact({'from': actor['addr'], 'gas': 1000000})
receipt = w3.eth.getTransactionReceipt(txn)
# bytes16 marketId, address sender, address delegate, address receiver, address channel
args = xbr.xbrnetwork.events.PaymentChannelCreated().processReceipt(receipt)
args = args[0].args
marketId = args['marketId']
sender = args['sender']
delegate = args['delegate']
recipient = args['receiver']
channel = args['channel']
print('Actor {} opened payment channel {} in market {} with inital deposit of {}, delegate {} and recipient {}!'.format(actor['addr'], hl(channel), market['id'], amount, hl(delegate), recipient))
if __name__ == '__main__':
print('using web3.py v{}'.format(web3.__version__))
parser = argparse.ArgumentParser()
parser.add_argument('--gateway',
dest='gateway',
type=str,
default=None,
help='Ethereum HTTP gateway URL or None for auto-select (default: -, means let web3 auto-select).')
args = parser.parse_args()
if args.gateway:
w3 = web3.Web3(web3.Web3.HTTPProvider(args.gateway))
else:
# using automatic provider detection:
from web3.auto import w3
# check we are connected, and check network ID
if not w3.isConnected():
print('could not connect to Web3/Ethereum at: {}'.format(args.gateway or 'auto'))
sys.exit(1)
else:
print('connected via provider "{}"'.format(args.gateway or 'auto'))
# set new provider on XBR library
xbr.setProvider(w3)
# now enter main ..
main(w3.eth.accounts)
|
