UniswapV2TestTrader

tradeexecutor.testing.ethereumtrader_uniswap_v2.UniswapV2TestTrader Python class in Trading Strategy framework.

class UniswapV2TestTrader

Bases: EthereumTrader

Helper class to trade against a locally deployed Uniswap v2 contract.

Allows to execute individual trades without need to go through decide_trades()

May be used with or without pricing_model.

__init__(uniswap, state, pair_universe, tx_builder, pricing_model=None)

Parameters:

• web3 –

• uniswap (UniswapV2Deployment) –

• hot_wallet –

• state (State) –

• pair_universe (PandasPairUniverse) –

• tx_builder (TransactionBuilder) –

• pricing_model (Optional[UniswapV2LivePricing]) – Give if you want to get the lp fees estimated

Methods

__init__(uniswap, state, pair_universe, ...)	param web3:
broadcast_trades(trades[, ...])	Broadcast prepared trades.
buy(pair, amount_in_usd[, execute, ...])	Buy token (trading pair) for a certain value.
execute_trades_simple(trades[, ...])	Execute trades on web3 instance.
sell(pair, quantity[, execute, ...])	Sell tokens on an open position for a certain quantity.

Attributes

web3

__init__(uniswap, state, pair_universe, tx_builder, pricing_model=None)

Parameters:

• web3 –

• uniswap (UniswapV2Deployment) –

• hot_wallet –

• state (State) –

• pair_universe (PandasPairUniverse) –

• tx_builder (TransactionBuilder) –

• pricing_model (Optional[UniswapV2LivePricing]) – Give if you want to get the lp fees estimated

buy(pair, amount_in_usd, execute=True, slippage_tolerance=None)

Buy token (trading pair) for a certain value.

Parameters:

• pair (TradingPairIdentifier) –

• amount_in_usd (Decimal) –

• slippage_tolerance (Optional[float]) –

Return type:

Tuple[TradingPosition, TradeExecution]

sell(pair, quantity, execute=True, slippage_tolerance=None)

Sell tokens on an open position for a certain quantity.

Parameters:

• pair (TradingPairIdentifier) –

• quantity (Decimal) –

• slippage_tolerance (Optional[float]) –

Return type:

Tuple[TradingPosition, TradeExecution]

execute_trades_simple(trades, stop_on_execution_failure=True, broadcast=True)

Execute trades on web3 instance.

A testing shortcut

• Create BlockchainTransaction instances of each gives TradeExecution

• Execute them on Web3 test connection (EthereumTester / Ganache)

• Works with single Uniswap test deployment

Parameters:

• trades (List[TradeExecution]) – Trades to be converted to blockchain transactions

• stop_on_execution_failure – Raise exception on an error

• broadcast – Broadcast trades over web3 connection

Return type:

Tuple[List[TradeExecution], List[TradeExecution]]

broadcast_trades(trades, stop_on_execution_failure=True)

Broadcast prepared trades.

Parameters:

trades (List[TradeExecution]) –