examples/rest: add create funding offer example

bfxapi/examples/rest/create_funding.py

@@ -0,0 +1,35 @@
+import os
+import sys
+import asyncio
+import time
+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='DEBUG'
+)
+
+async def create_funding():
+  response = await bfx.rest.submit_funding_offer("fUSD", 1000, 0.012, 7)
+  # response is in the form of a Notification object
+  # notify_info is in the form of a FundingOffer
+  print ("Offer: ", response.notify_info)
+
+async def cancel_funding():
+  response = await bfx.rest.submit_cancel_funding_offer(41235958)
+  # response is in the form of a Notification object
+  # notify_info is in the form of a FundingOffer
+  print ("Offer: ", response.notify_info)
+
+async def run():
+  await create_funding()
+  await cancel_funding()
+
+t = asyncio.ensure_future(run())
+asyncio.get_event_loop().run_until_complete(t)