Commitcede174

Roman Shterenzon

authored

feat: estimate gas using RPC (#190)

This will allow using it on Arbitrum (see#177).

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Lines changed: 3 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1085,6 +1085,8 @@ def _build_and_send_tx(`
`1085`	`1085`	`ifnottx_params:`
`1086`	`1086`	`tx_params=self._get_tx_params()`
`1087`	`1087`	`transaction=function.buildTransaction(tx_params)`
	`1088`	`+# Uniswap3 uses 20% margin for transactions`
	`1089`	`+transaction["gas"]=Wei(int(self.w3.eth.estimate_gas(transaction)*1.2))`
`1088`	`1090`	`signed_txn=self.w3.eth.account.sign_transaction(`
`1089`	`1091`	`transaction,private_key=self.private_key`
`1090`	`1092`	`)`
`@@ -1096,12 +1098,11 @@ def _build_and_send_tx(`
`1096`	`1098`	`logger.debug(f"nonce:{tx_params['nonce']}")`
`1097`	`1099`	`self.last_nonce=Nonce(tx_params["nonce"]+1)`
`1098`	`1100`
`1099`		`-def_get_tx_params(self,value:Wei=Wei(0),gas:Wei=Wei(250000))->TxParams:`
	`1101`	`+def_get_tx_params(self,value:Wei=Wei(0))->TxParams:`
`1100`	`1102`	`"""Get generic transaction parameters."""`
`1101`	`1103`	`return {`
`1102`	`1104`	`"from":_addr_to_str(self.address),`
`1103`	`1105`	`"value":value,`
`1104`		`-"gas":gas,`
`1105`	`1106`	`"nonce":max(`
`1106`	`1107`	`self.last_nonce,self.w3.eth.get_transaction_count(self.address)`
`1107`	`1108`	`),`

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