--- Log opened Sun May 03 00:00:11 2020
00:31 < Educob2> Thanks. Can I know the mnemonic and passphrase of the wallet?
01:40 < darosior> The raw seed is stored in <lightning_dir>/hsm_secret, you should backup this file. About the passphrase you can encrypt this file with the --encrypted-hsm startup option but it's by default stored in clear
02:04 < Educob2> Thanks.
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04:30 < Educob2> I try to start lightning with a plugin (--plugin=path/plugin.py) and I get a Permission denied error.
04:37 < Educob2> I need it to make executable. Silly me.
04:45 < Educob2> In the plugin I am importing requests to be able to call my web server but I get: import: not authorized `requests' @ error/constitute.c/WriteImage/1028.
04:48 < Educob2> The line "plugin = Plugin()" gives error: Syntax error: "(" unexpected
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05:27 < Educob2> How do I install pyln?
05:42 < darosior> Educob2: You can use pip (pip install pyln-client) or directly use the setup.py (find the lib in contrib/)
05:43 < Educob2> Thanks.
05:49 <@cdecker> Educob2: you need a sheback (#!/usr/bin/env python3) as the first line of the plugin so your OS can recognize how to execute it (it needs to use the python3 interpreter)
05:49 <@cdecker> See here for an explanation: https://en.wikipedia.org/wiki/Shebang_(Unix)
05:52 < Educob2> I have pasted sendpay_notifications.py file in plugins folder. I get a long list of errors:
05:52 < Educob2> Notification handler notify_sendpay_success for notification sendpay_success does not have a variable keyword argument. 
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05:52 < Educob2> plugin-sendpay_notifications.py: Notification handler notify_sendpay_failure for notification sendpay_failure does not have a variable keyword argument. 
05:52 < Educob2> plugin-sendpay_notifications.py: RPC method 'listsendpays_plugin' does not have a docstring.
05:52 < Educob2> plugin-bcli: Could not connect to 'lightning-rpc': Connection refused
05:53 < Educob2> Where can I find  a subscriptions plugin that runs ok?
05:53 <@cdecker> That's quite alright, these are just warnings that some functions may break in future since they don't take variable keyword args and they don't have a documentation string
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05:54 <@cdecker> The plugin should be working, there's just some things that could be improved
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05:56 < Educob2> You mean it works inspite all the warning/errors?
05:56 < Educob2> Ah ok.
05:57 <@cdecker> Yep, you'd get a python stack trace in the logs if they'd crash outright
05:57 < Educob2> but what about this error: Could not connect to 'lightning-rpc': Connection refused ?
05:58 <@cdecker> That's a known issue with the bitcoin backend plugins: they need to start before we accept RPC connections, so we can do some sanity before accepting RPC commands, but they still check if the RPC is up, and that'll report a one-time error
05:58 < Educob2> But will it work when a notification is reported?
05:59 <@cdecker> Yes, it'll work
05:59 <@cdecker> Here's the issue tracking that annoying log entry about RPC not being ready: https://github.com/ElementsProject/lightning/issues/3553
06:00 <@cdecker> It's a bit of a nuisance, but will not impact functionality
06:00 < Educob2> Thanks. Do I need the plugins already included: fundchannel, pay, sendpay_notifications, bcli, autoclean, keysend?
06:01 <@cdecker> Yes, those are there to add functionality on top of the bare-bones RPC, and without the bcli plugin we'll refuse to start since we can't communicate with the bitcoin network
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06:04 < Educob2> Thanks.
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06:24 < darosior> Is someone working on MPP sending support for `pay` ? If not I might give it a shot 
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07:28 <@cdecker> darosior: I'm currently modularizing the pay command so we can compartmentalize functionality into pay-modifiers, splitting logic being one such modifier
07:28 <@cdecker> But it's taking me a bit longer than expected
08:02 <@cdecker> On the upside though it should be possible to add or remove modifiers on a whim, and have them nicely bundled up in a way they don't sprawl all over the codebase
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09:11 < fiatjaf> awesome
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10:34 < darosior> Great ! :)
10:47 < Educob2> I have set two regtest ln nodes, create a channel. Create an invoice in channel 2 and pay it from channel 1. 
10:47 < Educob2> in node 2 I run listinvoices, I get: "amount_received_msat": "100msat","paid_at": 1588526934
10:48 < Educob2> but then I run listfunds and I get: "our_amount_msat": "0msat",
10:48 < Educob2> while in node 1 listfunds reflect the 100msat sent: "our_amount_msat": "999999000msat",
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10:49 < Educob2> Shouldn't "our_amount_msat" in node 2 reflect the 100msat received?
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10:50 < darosior> Educob2: Interesting, does it get accounted if it reaches one whole sat ?
10:56 < Educob2> I will pay more. Let's see
10:57 < Educob2> I created a 2nd invoice in node 2 and for both invoices I got: "warning_deadends": "No channel with a peer that is not a dead end"
10:58 < Educob2> What does it mean?
10:59 < Educob2> I have sent 10.000msat and node 1 says: "our_amount_msat": "999989000msat", reflecting both payments
10:59 < Educob2> but node 2 says: "our_amount_msat": "10000msat", reflecting only the 2nd payment. What's going on
11:06 < Educob2> so the 1st payment doesn't exist in the funds for node 2 eventhough it knows the 1st payment has been paid. I don't want to do more payments until this (potentially huge) error is sorted out.
11:07 < Educob2> In output of node 2 I see this. UNUSUAL lightningd: invoice: insufficient incoming capacity for 100msat
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13:52 < Educob2> So many weird things when paying invoices. I have opened this issue: https://github.com/ElementsProject/lightning/issues/3699
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14:06 < Educob2> I can't find the code in python to be notified when receiving a payment. Anyone knows how to do it?
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17:50 < fiatjaf> Educob2: there are 3 ways, one is to call waitinvoice with the label of the invoice you're waiting for
17:51 < fiatjaf> another is to call waitanyinvoice progressively with an index that increments as you are notified of each payment
17:51 < fiatjaf> (each received payment will have a pay_index according to the time they were received)
17:52 < fiatjaf> another is to register your python app as a plugin and subscribe to invoice_payment events: https://lightning.readthedocs.io/PLUGINS.html#invoice-payment
17:53 < fiatjaf> another way is to install the https://github.com/fiatjaf/lightningd-gjson-rpc/tree/master/cmd/webhook plugin and configure a webhook url to call on invoice_payment events
17:53 < fiatjaf> ~
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23:35 < Educob2> Thanks. I have tried option 3 and it doesn't work. I have a python plugin that receives notification for sendpay_success but it's not notified for invoice_payment. Can you please pass me a working python code for that?
23:38 < Educob2> I can't find python examples  for waitanyinvoice and waitinvoice. This is very frustrating.
23:41 < Educob2> These are some of the codes I have tried with: https://github.com/ElementsProject/lightning/issues/3701
23:42 < darosior> Educob2: https://github.com/ElementsProject/lightning/blob/34ed2093acbc57719d8c63fb33ace41b505d7253/contrib/plugins/helloworld.py#L43
23:42 < Educob2> Thanks. I have tried that but it doesn't get notified.
23:43 < Educob2> I just tried it once again to make sure and the plugin doesn't get notified.
23:44 < Educob2> I receive the usual output: 2020-05-04T06:43:28.515Z INFO lightningd: Resolved invoice 'test 13 node 2' with amount 1005msat in 1 htlcs
23:51 < Educob2> I have tried to pay from node 2 to node 1 and I get this error: 'Could not find a route'
--- Log closed Mon May 04 00:00:10 2020