class ETHTickerClient(ttk.Frame):
def __init__(
self,
sender_privkey: str,
session: Session = None,
poll_interval: float = 5
) -> None:
self.poll_interval = poll_interval
self.root = tkinter.Tk()
ttk.Frame.__init__(self, self.root)
self.root.title('µRaiden ETH Ticker')
self.root.protocol('WM_DELETE_WINDOW', self.close)
self.pack()
self.pricevar = tkinter.StringVar(value='0.00 USD')
ttk.Label(self, textvariable=self.pricevar, font=('Helvetica', '72')).pack()
if session is None:
self.session = Session(
private_key=sender_privkey,
close_channel_on_exit=True,
endpoint_url='http://localhost:5000'
)
else:
self.session = session
self.active_query = False
self.running = False
def run(self):
self.running = True
self.root.after(0, self.query_price)
self.root.mainloop()
def query_price(self):
if not self.running:
return
self.active_query = True
response = self.session.get('http://localhost:5000/ETHUSD')
if response:
price = float(response.json()['last_price'])
log.info('New price received: {:.2f} USD'.format(price))
self.pricevar.set('{:.2f} USD'.format(price))
else:
log.warning('No response.')
if self.running:
self.root.after(int(self.poll_interval * 1000), self.query_price)
self.active_query = False
def close(self):
log.info('Shutting down gracefully.')
self.running = False
self.root.destroy()
# Sloppy handling of thread joining but works for this small demo.
while self.active_query:
gevent.sleep(1)
self.session.close()
class ETHTickerClient(ttk.Frame):
def __init__(
self,
sender_privkey: str,
session: Session = None,
poll_interval: float = 5
) -> None:
self.poll_interval = poll_interval
self.root = tkinter.Tk()
ttk.Frame.__init__(self, self.root)
self.root.title('µRaiden ETH Ticker')
self.root.protocol('WM_DELETE_WINDOW', self.close)
self.pack()
self.pricevar = tkinter.StringVar(value='0.00 USD')
ttk.Label(self, textvariable=self.pricevar, font=('Helvetica', '72')).pack()
if session is None:
self.session = Session(
private_key=sender_privkey,
close_channel_on_exit=True,
endpoint_url='http://localhost:5000'
)
else:
self.session = session
self.active_query = False
self.running = False
def run(self):
self.running = True
self.root.after(0, self.query_price)
self.root.mainloop()
def query_price(self):
if not self.running:
return
self.active_query = True
response = self.session.get('http://localhost:5000/ETHUSD')
if response:
price = float(response.json()['last_price'])
log.info('New price received: {:.2f} USD'.format(price))
self.pricevar.set('{:.2f} USD'.format(price))
else:
log.warning('No response.')
if self.running:
self.root.after(int(self.poll_interval * 1000), self.query_price)
self.active_query = False
def close(self):
log.info('Shutting down gracefully.')
self.running = False
self.root.destroy()
# Sloppy handling of thread joining but works for this small demo.
while self.active_query:
gevent.sleep(1)
self.session.close()
def run(private_key: str,
password_path: str,
channel_manager_address: str = None,
reqs: int = 20,
web3: Web3 = None,
retry_interval: float = 5,
endpoint_url: str = 'http://localhost:5000'):
# Create the client session.
global session
session = Session(endpoint_url=endpoint_url,
private_key=private_key,
key_password_path=password_path,
channel_manager_address=channel_manager_address,
web3=web3,
initial_deposit=lambda price: 10 * 1000 * 1000 * price,
topup_deposit=lambda price: 10 * 1000 * 1000 * price,
close_channel_on_exit=True,
retry_interval=retry_interval)
resource = "/test/1"
# Get the resource. If payment is required, client will attempt to create
# a channel or will use existing one.
last_time = time.time()
global rqs
last_reqs = 0
for i in range(0, reqs):
response = session.get('{}/{}'.format(endpoint_url, resource))
if response.status_code == requests.codes.OK:
rqs = rqs + 1
t = time.time()
if (t - last_time) >= 1:
print("transaction rate: ", rqs - last_reqs, " req/sec")
last_time = t
last_reqs = rqs
continue
if re.match('^text/', response.headers['Content-Type']):
logging.info("Got the resource {} type={}:\n{}".format(
resource, response.headers.get('Content-Type', '???'),
response.text))
else:
logging.info("Got the resource {} type={} (not echoed)".format(
resource, response.headers.get('Content-Type', '???')))
else:
logging.error("Error getting the resource. Code={} body={}".format(
response.status_code, response.text))
print(rqs, " requests processed, closing session.")
session.close()
return response
def session(client: Client, use_tester: bool, api_endpoint_address: str):
# patch request_resource of this instance in order to advance blocks when doing requests
def request_patched(self: Session, method: str, url: str, **kwargs):
if use_tester:
log.info('Mining new block.')
self.client.context.web3.testing.mine(1)
return Session._request_resource(self, method, url, **kwargs)
kwargs = {}
if use_tester:
kwargs['retry_interval'] = 0.1
session = Session(client,
endpoint_url='http://' + api_endpoint_address,
**kwargs)
session._request_resource = types.MethodType(request_patched, session)
yield session
session.close()
def session(client: Client, use_tester: bool, api_endpoint_address: str):
# patch request_resource of this instance in order to advance blocks when doing requests
def request_patched(self: Session, method: str, url: str, **kwargs):
if use_tester:
log.info('Mining new block.')
self.client.context.web3.testing.mine(1)
return Session._request_resource(self, method, url, **kwargs)
kwargs = {}
if use_tester:
kwargs['retry_interval'] = 0.1
session = Session(
client,
endpoint_url='http://' + api_endpoint_address,
**kwargs
)
session._request_resource = types.MethodType(request_patched, session)
yield session
session.close()
