class FabricInitializer:
"""This provides the proper fabric client wrapper
"""
def __init__(self,
net_profile=None,
channel_name=None,
cc_name=None,
cc_version=None,
org_name=None,
user_name=None,
peer_name=None):
self.client = Client(net_profile=net_profile)
assert self.client
print("---client---")
print(self.client.orderers)
print(self.client.peers)
print("---client---")
self.channel_name = channel_name
self.channel = self.client.new_channel(channel_name)
print("---channel---")
print("client channels: ", self.client._channels)
print("channel: ", self.client.get_channel(channel_name))
print("channel name: ", self.client.get_channel(channel_name).name)
print("channel peers: ", self.client.get_channel(channel_name).peers)
print("channel orderers: ",
self.client.get_channel(channel_name).orderers)
print("---channel---")
assert self.channel
self.cc_name = cc_name
self.cc_version = cc_version
self.user = self.client.get_user(org_name, user_name)
assert self.user
self.peers = [self.client.get_peer(peer_name)]
assert self.peers
print("---parameters---")
print("User: "******"Peers: ", self.peers)
print("cc name:", self.cc_name)
print("---parameters---")
self.hub = None
self.reg_nub = None
async def get_height(self):
info = await self.client.query_info(self.user, self.channel_name,
self.peers)
return info.height
peers=['peer0.org1.example.com'],
args=args,
cc_name='example_cc'))
print("Query chaincode done.")
print(response)
##############################################################################
# Query Peer installed chaincodes
response = loop.run_until_complete(
cli.query_installed_chaincodes(requestor=org1_admin,
peers=['peer0.org1.example.com']))
print("Query installed chaincode.")
print(response)
# check if channel named "businesschannel" is already exists
response = cli.get_channel(name="businesschannel")
print("Channel named `businesschannel`: ", response)
# query channels joined in by given peers
response = loop.run_until_complete(
cli.query_channels(requestor=org1_admin,
peers=['peer0.org1.example.com']))
print("Channels: ", response)
# query channel info of a given channel named "businesschannel"
response = loop.run_until_complete(
cli.query_info(requestor=org1_admin,
channel_name="businesschannel",
peers=['peer0.org1.example.com']))
print("Channels: ", response)
peers=['peer0.org1.example.com']
))
print("Get channel config done.")
print(response)
# Channel event hub
def getBlocks(blocks):
# On event complition the block is appended to the list of blocks
def onEvent(block):
blocks.append(block)
# Returns an instance of the onEvent function
return onEvent
blocks = [] # empty list
channel = cli.get_channel('businesschannel')
channel_event_hub = channel.newChannelEventHub(cli.get_peer('peer0.org1.example.com'), org1_admin)
channel_event_hub.registerBlockEvent(start=0, onEvent=getBlocks(blocks))
stream = channel_event_hub.connect()
print(blocks)
# Query Channel
response = cli.query_channels(
requestor=org1_admin,
peers=['peer0.org1.example.com', 'peer1.org1.example.com']
)
print(response)
# Query Info
response = loop.run_until_complete(cli.query_info(
