examples: seperate ws and rest examples

bfxapi/examples/ws/wallet_balance.py

@@ -0,0 +1,31 @@
+import os
+import sys
+sys.path.append('../')
+
+from bfxapi import Client
+
+API_KEY=os.getenv("BFX_KEY")
+API_SECRET=os.getenv("BFX_SECRET")
+
+bfx = Client(
+  API_KEY=API_KEY,
+  API_SECRET=API_SECRET,
+  logLevel='INFO'
+)
+
+@bfx.ws.on('wallet_snapshot')
+def log_snapshot(wallets):
+  for wallet in wallets:
+    print (wallet)
+  
+  # or bfx.ws.wallets.get_wallets()
+
+@bfx.ws.on('wallet_update')
+def log_update(wallet):
+  print ("Balance updates: {}".format(wallet))
+
+@bfx.ws.on('error')
+def log_error(msg):
+  print ("Error: {}".format(msg))
+
+bfx.ws.run()