I have improved the `exchange` module in the python-graphenelibs such
that you could now create transactions **without** the cli_wallet and
thus write trading bots without the need for compiling BitShares.
I would call it experimental even though the code itself seems to pass
all tests.
However, I created a
new branch in the python-graphene libs repository called
`feature/signing-of-trades`. I encourage everyone to give it a try.
Installation
git clone https://github.com/xeroc/python-graphenelib
git checkout feature/signing-of-trades
make install-user
Example Code
from grapheneexchange.exchange import GrapheneExchange
from pprint import pprint
class Config():
witness_url = "wss://bitshares.openledger.info/ws"
watch_markets = ["USD_BTS"]
market_separator = "_"
account = "xeroc"
dex = GrapheneExchange(
config,
safe_mode=True,
wif="YOUR-WIF-KEY"
)
pprint(dex.returnTicker())
print(dex.buy("USD_BTS", 1, 10))
print(dex.adjust_collateral_ratio("SILVER", 3.0))
Prove the `wif` key for the *active* permissions of the account provided
in the config.
If you set the `safe_mode` flag when instatiating `GrapheneExchange` to
`False`, it will also **broadcast** the transaction.
Please give it a try and also remember that there is a **TEST** network
for this!
**Note**, this is still work in progress and some interfaces may change.
While writing this post, I realized that the wif key should probably be
put in the `Config` class aswell so that it can be put in a distinct
`config.py` file and loaded via `import config` for separation of code
and access key.
Cheers
Steem post
https://steemit.com/bitshares/[member=120]xeroc[/member]/experimental-python-trading-without-cli-wallet