Notify users when transaction arrives for any of their accounts

[jacogr]

No description provided.

[gituser]

+1 for this would be nice to have a tracking ability for accounts, maybe just like bitcoin does via walletnotify, where you can pass any bash script and it gets executed with transaction id.

[ngotchac]

@jacogr
Got this to work thanks to the Trace API (thus needs to be enabled), since you can make a request for transactions on several addresses (not available on Etherescan API...)
I'm not sure how would that be possible without tracing enabled then, because making a request for each account to Etherescan at each block sounds like a big overhead... Any thoughts? Maybe we should have some servers running Parity with tracing enabled... ?

[tomusdrw]

What about this: https://etherscan.io/apis#websocket ?

[ngotchac]

Thought about this, I guess it would work. Only thing is that, for example for the list of transactions, there's a footer expliciting that Etherscan is used to get those, and here it won't. Is that an issue ?
Will try to implement it though.

[rphmeier]

it seems a bit hacky to rely on etherscan for data which should be available from the connected parity node (pub/sub support would be nice here :) )

[jacogr]

I think the correct solution would be -

1. short-term, poll for our accounts when new block arrives (which is also currently polling, but at least abstracted away until we have proper pub-sub)
2. medium-term use node pub-sub to provide this info same

I don't think we should rely on 3rd parties more than we already do.

[ngotchac]

@jacogr How would we poll transactions for any account without using Etherscan anyway ?