Stomp over websocket

simple python client for stomp over websocket.

Usage

The usage is simple if you have experience using Stomp js, assuming you have built a websocket server with SpringBoot, below is the way to connect:

LOG_FORMAT = "%(asctime)s - %(levelname)s - %(message)s"
logging.basicConfig(level=logging.DEBUG, format=LOG_FORMAT)


client = Client("ws://127.0.0.1:8080/gs-guide-websocket")

# connect to the endpoint
client.connect()

# subscribe channel
client.subscribe("/topic/1", callback=print_frame)

# send msg to channel
client.send("/topic/1", body=json.dumps({'name': 'tom'}))

time.sleep(3)

client.disconnect()

API

.connect(login, passcode, headers, connectCallback, errorCallback, timeout)

Attempts to connect to the server, the timeout default to 0 means that will block until a successful connection. You can also set login and passcode if the server requires auth.

.disconnect(disconnectCallback, headers)

Disconnect from STOMP server, the callback will be called if disconnectCallback is not None.

.subscribe(dest, callback)

Subscribes to a destination on the STOMP server to receive messages that are published on it. This method will return a tuple (subscribe_id, unsubscribe):

sub_id, unsubscribe = client.subscribe("/topic/1", some_func)
unsubscribe() # This will unsubscribe topic '/topic/1'

The callback must be a function that accepts a frame argument:

def some_func(frame):
    print(frame.command) # get commend
    print(frame.headers) # get headers
    print(frame.body)    # get body

.unsubscribe(dest)

Unsubscribe from a topic.

.send(dest, headers=None, body=None)

Sends message to destination on the server. The format of message could be json or others, depends on the STOMP server.

TODO

• : Heart beat
• : Transaction