Add eth adapter to tx helper

crypto_dev_signer/eth/helper/__init__.py

@@ -0,0 +1 @@
+from .tx import EthTxExecutor

crypto_dev_signer/eth/helper/tx.py

@@ -0,0 +1,49 @@
+# standard imports
+import logging
+
+# local imports
+from crypto_dev_signer.helper import TxExecutor
+
+logg = logging.getLogger()
+logging.getLogger('web3').setLevel(logging.CRITICAL)
+logging.getLogger('urllib3').setLevel(logging.CRITICAL)
+
+
+class EthTxExecutor(TxExecutor):
+
+    def __init__(self, w3, sender, signer, chain_id, verifier=None, block=False):
+        self.w3 = w3
+        nonce = self.w3.eth.getTransactionCount(sender, 'pending')
+        super(EthTxExecutor, self).__init__(sender, signer, self.translator, self.dispatcher, self.reporter, nonce, chain_id, self.fee_helper, self.fee_price_helper, verifier, block)
+
+
+    def fee_helper(self, tx):
+        estimate = self.w3.eth.estimateGas(tx)
+        if estimate < 21000:
+            estimate = 21000
+        logg.debug('estimate {} {}'.format(tx, estimate))
+        return estimate
+
+
+    def fee_price_helper(self):
+        return self.w3.eth.gasPrice
+
+
+    def dispatcher(self, tx):
+        return self.w3.eth.sendRawTransaction(tx)
+
+
+    def reporter(self, tx):
+        return self.w3.eth.getTransactionReceipt(tx)
+
+
+    def translator(self, tx):
+        if tx.get('feePrice') != None:
+            tx['gasPrice'] = tx['feePrice']
+            del tx['feePrice']
+
+        if tx.get('feeUnits') != None:
+            tx['gas'] = tx['feeUnits']
+            del tx['feeUnits']
+
+        return tx