def home():
"""display status information about the blockchain. Eventually, this might be its own app.
"""
try:
timestamp = get_ledger_uptime()["time_stamp"]
# remove microseconds and timezone information
timestamp_no_us = timestamp.split(".")[0]
# calculate difference until now
startup_time = datetime.datetime.strptime(timestamp_no_us, "%Y-%m-%d %H:%M:%S")
uptime_duration = str(datetime.datetime.now() - startup_time)
# remove microseconds from uptime
uptime = ".".join(uptime_duration.split(".")[:-1])
# envelope_count=len(envelopes), \
# supplier_count=len(suppliers), \
# part_count=len(parts))
return render_page("home", \
uptime=uptime, \
apps=get_blockchain_apps(), \
nodes=get_blockchain_nodes() , \
ledger_api_address=get_ledger_address(), \
envelope_count=0, \
supplier_count=0, \
part_count=0)
except APIError as error:
return render_page("error", error_message=str(error))
def home():
"""display status information about the blockchain. Eventually, this might be its own app.
"""
try:
return render_page("home", \
uptime=get_ledger_uptime(), \
apps=get_blockchain_apps(), \
nodes=get_blockchain_nodes() , \
ledger_api_address=get_ledger_address(), \
envelope_count=0, \
supplier_count=0, \
part_count=0)
except APIError as error:
return render_page("error", error_message=str(error))
def home():
"""display status information about the blockchain. Eventually, this might be its own app.
"""
uptime_sample = str(datetime.datetime.now() -
datetime.datetime(2017, 7, 9, 12, 44))
uptime_sample = ".".join(uptime_sample.split(".")[:-1])
# dict supplier.id -> list of part instances by this supplier
supplier_parts = {}
# dict supplier.id -> supplier instance
apps = ["Sparts", "BC Dash"]
try:
ledger_ip, ledger_port = get_ledger_api_address()
# envelope_count=len(envelopes), \
# supplier_count=len(suppliers), \
# part_count=len(parts))
return render_page("home", uptime=uptime_sample, \
apps=apps, \
nodes=get_blockchain_nodes(), \
ledger_api_address="http://" + ledger_ip + ":" + str(ledger_port) + "/api/sparts", \
envelope_count=0, \
supplier_count=0, \
part_count=0)
except ConnectionError:
return render_page("error", error_message="The conductor service refused connection." \
+ " Could not query blockchain status at this time. Please try again later.")
except APIError as error:
return render_page("error", error_message="Failed to call the conductor API service. " \
+ str(error))
def get_node_status(uuid):
"""json route for pinging a node and returning its status
"""
selected_node = None
for node in get_blockchain_nodes():
if node["uuid"] == uuid:
selected_node = node
break
if selected_node is None:
return jsonify({"status": "Down. Node UUID was not found on the network."})
if "api_address" not in node:
return jsonify({"status": "Invalid conductor response. No api_address."})
try:
node_status = ping_node(node["api_address"], timeout=5)
except ReadTimeout:
node_status = "Down. Timed out."
except ConnectionError:
node_status = "Down. Connection refused."
return jsonify({"status": node_status})