Quote from: achow101 on April 12, 2018, 03:19:27 PM

Quote from: jrian on April 12, 2018, 12:08:53 PM

understand, thanks. But how can I open bi-directional channel with any node?

how can I open such channel with some (not mine) node?

Using whatever channel opening functionality the LN software you are using provides. All channels are bidirectional; it doesn't matter who creates them, both parties in the channel can send money to and receive money from the other party in the channel.

maybe I ask wrong question.

according to this tutorial https://dev.lightning.community/tutorial/01-lncli/
If I open channel from Alice to Bob - Alice can pay to Bob, right?
But how can I force Bob to put some satoshi in this channel? So Bob can pay back to Alice?

for example:

Code:

bitcointest@zabbix:/root$ lncli-alice openchannel --node_key=XXXXX --local_amt=80000
{
   "funding_txid": "XXXXXX"
}

bitcointest@zabbix:/root$ lncli-alice listchannels
{
   "channels": [
   {
   "active": true,
   "remote_pubkey": "XXXXXXX",
   "channel_point": "XXXXXXXXX:1",
   "chan_id": "XX",
   "capacity": "80000",
   "local_balance": "77199",
   "remote_balance": "0",
   "commit_fee": "191",
   "commit_weight": "600",
   "fee_per_kw": "250",
   "unsettled_balance": "0",
   "total_satoshis_sent": "0",
   "total_satoshis_received": "0",
   "num_updates": "0",
   "pending_htlcs": [
   ],
   "csv_delay": 144,
   "private": false
   }
   ]
}

now we have channel from Alice to Bob. But I want Bob to pay Alice invoice.

Code:

bitcointest@zabbix:/root$ lncli-alice addinvoice 5000
{
   "r_hash": "XXXXX5cfd2a4949adc680b01ad0f002553c",
   "pay_req": "lnXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXf5mvr"
}

bitcointest@zabbix:/root$ lncli-bob payinvoice lnXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXf5mvr
{
   "payment_error": "unable to route payment to destination: TemporaryChannelFailure: insufficient capacity in available outgoing links: need 5000000 mSAT, max available is 0 mSAT",
   "payment_preimage": "",
   "payment_route": null
}

so, question is - how to force Bob to put some money into channel?