and invoice has fallback address and amount can be paid on-chain.
In WalletMainView, follow on-chain payment path if available lighting balance is
insufficient for the invoice amount
If checked, we download prev (parent) txs from the network, asynchronously.
This allows calculating the fee and showing "input addresses".
We could also SPV-verify the tx, to fill in missing tx_mined_status
(block height, blockhash, timestamp, short ids), but this is not done currently.
Note that there is no clean way to do this with electrum protocol 1.4:
`blockchain.transaction.get_merkle(tx_hash, height)` requires knowledge of the block height.
Loosely based on 6112fe0e51
- wallet.add_input_info() previously had a fallback to download parent
prev txs from the network (after a lookup in wallet.db failed).
wallet.add_input_info() is not async, so the network request cannot
be done cleanly there and was really just a hack.
- tx.add_info_from_wallet() calls wallet.add_input_info() on each txin,
in which case these network requests were done sequentially, not concurrently
- the network part of wallet.add_input_info() is now split out into new method:
txin.add_info_from_network()
- in addition to tx.add_info_from_wallet(), there is now also tx.add_info_from_network()
- callers of old tx.add_info_from_wallet() should now called either
- tx.add_info_from_wallet(), then tx.add_info_from_network(), preferably in that order
- tx.add_info_from_wallet() alone is sufficient if the tx is complete,
or typically when not in a signing context
- callers of wallet.bump_fee and wallet.dscancel are now expected to have already
called tx.add_info_from_network(), as it cannot be done in a non-async context
(but for the common case of all-inputs-are-ismine, bump_fee/dscancel should work regardless)
- PartialTxInput.utxo was moved to the baseclass, TxInput.utxo
self.interface might get set to None after decorator checks it but before func gets scheduled:
125.04 | E | asyncio | Task exception was never retrieved
future: <Task finished name='Task-408' coro=<Transaction.add_info_from_network.<locals>.add_info_to_txin() done, defined at ...\electrum\electrum\transaction.py:976> exception=AttributeError("'NoneType' object has no attribute 'get_transaction'")>
Traceback (most recent call last):
File "...\electrum\electrum\transaction.py", line 980, in add_info_to_txin
await txin.add_info_from_network(network=network, ignore_network_issues=ignore_network_issues)
File "...\electrum\electrum\transaction.py", line 375, in add_info_from_network
self.utxo = await fetch_from_network(txid=self.prevout.txid.hex())
File "...\electrum\electrum\transaction.py", line 362, in fetch_from_network
raw_tx = await network.get_transaction(txid, timeout=10)
File "...\electrum\electrum\network.py", line 866, in make_reliable_wrapper
async with OldTaskGroup(wait=any) as group:
File "...\aiorpcX\aiorpcx\curio.py", line 304, in __aexit__
await self.join()
File "...\electrum\electrum\util.py", line 1410, in join
self.completed.result()
File "...\electrum\electrum\network.py", line 889, in wrapper
return await func(self, *args, **kwargs)
File "...\electrum\electrum\network.py", line 1114, in get_transaction
return await self.interface.get_transaction(tx_hash=tx_hash, timeout=timeout)
AttributeError: 'NoneType' object has no attribute 'get_transaction'
Required a much higher mental load to parse the name "convert_bip32_path_to_list_of_uint32"
than to parse "convert_bip32_strpath_to_intpath".
And we already have the ~inverse: "convert_bip32_intpath_to_strpath".
