examples: add ws auth example

bfxapi/examples/ws/connect_auth.py

@@ -0,0 +1,24 @@
+import os
+import sys
+sys.path.append('../')
+
+from bfxapi import Client, Order
+
+API_KEY=os.getenv("BFX_KEY")
+API_SECRET=os.getenv("BFX_SECRET")
+
+bfx = Client(
+  API_KEY=API_KEY,
+  API_SECRET=API_SECRET,
+  logLevel='DEBUG',
+  dead_man_switch=true, # <-- kill all orders if this connection drops
+  channel_filter=['wallet'] # <-- only receive wallet updates
+)
+
+@bfx.ws.on('error')
+def log_error(msg):
+  print ("Error: {}".format(msg))
+
+@bfx.ws.on('authenticated')
+async def submit_order(auth_message):
+  print ("Authenticated!!")