I paid the invoice and then I noticed I paid more than the amount of the invoice.
1201035 (I actually paid) - 1200000 (the amount of the invoice) = 1035 (?)
My questions are..
- What is 1035 satoshi? (routing fee..?)
- Is it possible to know how much extra amount I will pay before paying.
$ lightning-cli pay lntb12u1pw0ljy4pp55mjg93fckm3ydxsdglp4xxtc8vuc0v79g24gm3rz8h72j8fg32tqdp2xys9xct5da3kx6twv9kk7m3qg3hkccm9ypxxzar5v5cqp5336eqcvsmkx9507p6r82ekralj82jl3npv0v2k8auj2kkgmc9l68mmmzkxvpcnzd3feyygp8hw6wq2qup6f97zfjlm2hzhlk4a9veegqstahde
{
"id" : 1,
"payment_hash" : "a6e482c538b6e2469a0d47c35319783b3987b3c542aa8dc4623dfca91d288a96",
"destination" : "03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134",
"msatoshi" : 1200000,
"amount_msat" : "1200000msat",
"msatoshi_sent" : 1201035,
"amount_sent_msat" : "1201035msat",
"created_at" : 1560268918,
"status" : "complete",
"payment_preimage" : "c718e470dcf429280c611afba095c7396e219d60e590c6ee6beca8042f616483",
"bolt11" : "lntb12u1pw0ljy4pp55mjg93fckm3ydxsdglp4xxtc8vuc0v79g24gm3rz8h72j8fg32tqdp2xys9xct5da3kx6twv9kk7m3qg3hkccm9ypxxzar5v5cqp5336eqcvsmkx9507p6r82ekralj82jl3npv0v2k8auj2kkgmc9l68mmmzkxvpcnzd3feyygp8hw6wq2qup6f97zfjlm2hzhlk4a9veegqstahde"
}
$ lightning-cli listpeers
{
"peers" : [
{
"id" : "02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248",
"connected" : true,
"netaddr" : [
"23.237.77.12:9735"
],
"globalfeatures" : "",
"localfeatures" : "82",
"channels" : [
{
"state" : "CHANNELD_NORMAL",
"scratch_txid" : "e7a65a4f1e625a218baf640a154b04bdf06aa922ff1970ee64cbb3f0046b7866",
"owner" : "lightning_channeld",
"short_channel_id" : "1542376x20x0",
"direction" : 1,
"channel_id" : "6673cb8effd2bae6e0168949fcd8581acd1f6149f0966b568e8900d384f0729c",
"funding_txid" : "9c72f084d300898e566b96f049611fcd1a58d8fc498916e0e6bad2ff8ecb7366",
"private" : false,
"funding_allocation_msat" : {
"02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248" : 0,
"023a41771d55140a27c35687727a4b51bc6b58254129bd216fb000f405b7701cb4" : 20000000
},
"funding_msat" : {
"02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248" : "0msat",
"023a41771d55140a27c35687727a4b51bc6b58254129bd216fb000f405b7701cb4" : "20000000msat"
},
"msatoshi_to_us" : 18798965,
"to_us_msat" : "18798965msat",
"msatoshi_to_us_min" : 18798965,
"min_to_us_msat" : "18798965msat",
"msatoshi_to_us_max" : 20000000,
"max_to_us_msat" : "20000000msat",
"msatoshi_total" : 20000000,
"total_msat" : "20000000msat",
"dust_limit_satoshis" : 546,
"dust_limit_msat" : "546000msat",
"max_htlc_value_in_flight_msat" : 18446744073709551615,
"max_total_htlc_in_msat" : "18446744073709551615msat",
"their_channel_reserve_satoshis" : 546,
"their_reserve_msat" : "546000msat",
"our_channel_reserve_satoshis" : 546,
"our_reserve_msat" : "546000msat",
"spendable_msatoshi" : 18252965,
"spendable_msat" : "18252965msat",
"htlc_minimum_msat" : 0,
"minimum_htlc_in_msat" : "0msat",
"their_to_self_delay" : 6,
"our_to_self_delay" : 144,
"max_accepted_htlcs" : 483,
"status" : [
"CHANNELD_NORMAL:Reconnected, and reestablished.",
"CHANNELD_NORMAL:Funding transaction locked. Channel announced."
],
"in_payments_offered" : 0,
"in_msatoshi_offered" : 0,
"in_offered_msat" : "0msat",
"in_payments_fulfilled" : 0,
"in_msatoshi_fulfilled" : 0,
"in_fulfilled_msat" : "0msat",
"out_payments_offered" : 2,
"out_msatoshi_offered" : 2402049,
"out_offered_msat" : "2402049msat",
"out_payments_fulfilled" : 1,
"out_msatoshi_fulfilled" : 1201035,
"out_fulfilled_msat" : "1201035msat",
"htlcs" : []
}
]
}
]
}
Update 1
I tried sendpay. Then it worked.
I executed getroute command and I expected the fee was 1022.
After I paid, the amount was decreased 1201022 (the invoice amount + fee) as I expected.
18798965 - 17597943 = 1201022
// before payment
"msatoshi_to_us" : 18798965,
// after payment
"msatoshi_to_us" : 17597943,
// listfunds before payment
$ lightning-cli listfunds
{
"outputs" : [
{
"txid" : "9c72f084d300898e566b96f049611fcd1a58d8fc498916e0e6bad2ff8ecb7366",
"output" : 1,
"value" : 92846,
"amount_msat" : "92846000msat",
"address" : "tb1qyee36f2jmsytxxymwzc8rps7e7gmkky04lvtz6",
"status" : "confirmed"
}
],
"channels" : [
{
"peer_id" : "02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248",
"short_channel_id" : "1542376x20x0",
"channel_sat" : 18798,
"our_amount_msat" : "18798000msat",
"channel_total_sat" : 20000,
"amount_msat" : "20000000msat",
"funding_txid" : "9c72f084d300898e566b96f049611fcd1a58d8fc498916e0e6bad2ff8ecb7366"
}
]
}
// listpeers before payment
$ lightning-cli listpeers
{
"peers" : [
{
"id" : "02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248",
"connected" : true,
"netaddr" : [
"23.237.77.12:9735"
],
"globalfeatures" : "",
"localfeatures" : "82",
"channels" : [
{
"state" : "CHANNELD_NORMAL",
"scratch_txid" : "e7a65a4f1e625a218baf640a154b04bdf06aa922ff1970ee64cbb3f0046b7866",
"owner" : "lightning_channeld",
"short_channel_id" : "1542376x20x0",
"direction" : 1,
"channel_id" : "6673cb8effd2bae6e0168949fcd8581acd1f6149f0966b568e8900d384f0729c",
"funding_txid" : "9c72f084d300898e566b96f049611fcd1a58d8fc498916e0e6bad2ff8ecb7366",
"private" : false,
"funding_allocation_msat" : {
"02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248" : 0,
"023a41771d55140a27c35687727a4b51bc6b58254129bd216fb000f405b7701cb4" : 20000000
},
"funding_msat" : {
"02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248" : "0msat",
"023a41771d55140a27c35687727a4b51bc6b58254129bd216fb000f405b7701cb4" : "20000000msat"
},
"msatoshi_to_us" : 18798965,
"to_us_msat" : "18798965msat",
"msatoshi_to_us_min" : 18798965,
"min_to_us_msat" : "18798965msat",
"msatoshi_to_us_max" : 20000000,
"max_to_us_msat" : "20000000msat",
"msatoshi_total" : 20000000,
"total_msat" : "20000000msat",
"dust_limit_satoshis" : 546,
"dust_limit_msat" : "546000msat",
"max_htlc_value_in_flight_msat" : 18446744073709551615,
"max_total_htlc_in_msat" : "18446744073709551615msat",
"their_channel_reserve_satoshis" : 546,
"their_reserve_msat" : "546000msat",
"our_channel_reserve_satoshis" : 546,
"our_reserve_msat" : "546000msat",
"spendable_msatoshi" : 18252965,
"spendable_msat" : "18252965msat",
"htlc_minimum_msat" : 0,
"minimum_htlc_in_msat" : "0msat",
"their_to_self_delay" : 6,
"our_to_self_delay" : 144,
"max_accepted_htlcs" : 483,
"status" : [
"CHANNELD_NORMAL:Reconnected, and reestablished.",
"CHANNELD_NORMAL:Funding transaction locked. Channel announced."
],
"in_payments_offered" : 0,
"in_msatoshi_offered" : 0,
"in_offered_msat" : "0msat",
"in_payments_fulfilled" : 0,
"in_msatoshi_fulfilled" : 0,
"in_fulfilled_msat" : "0msat",
"out_payments_offered" : 2,
"out_msatoshi_offered" : 2402049,
"out_offered_msat" : "2402049msat",
"out_payments_fulfilled" : 1,
"out_msatoshi_fulfilled" : 1201035,
"out_fulfilled_msat" : "1201035msat",
"htlcs" : []
}
]
},
{
"id" : "03f44acc1df8639efbe5099da403f213a4ce5bbe6f9bdac7bfa26dcc338761e9de",
"connected" : true,
"netaddr" : [
"207.154.224.115:9735"
],
"globalfeatures" : "",
"localfeatures" : "81",
"channels" : []
}
]
}
// getroute
$ lightning-cli getroute 03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134 1200000 0
{
"route" : [
{
"id" : "02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248",
"channel" : "1542376x20x0",
"direction" : 1,
"msatoshi" : 1201022,
"amount_msat" : "1201022msat",
"delay" : 157
},
{
"id" : "034fe52e98a0e9d3c21b767e1b371881265d8c7578c21f5afd6d6438da10348b36",
"channel" : "1514318x209x0",
"direction" : 0,
"msatoshi" : 1200021,
"amount_msat" : "1200021msat",
"delay" : 13
},
{
"id" : "03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134",
"channel" : "1513532x23x1",
"direction" : 0,
"msatoshi" : 1200000,
"amount_msat" : "1200000msat",
"delay" : 9
}
]
}
// decodepay to get payment_hash
$ lightning-cli decodepay lntb12u1pwsp655pp5rs20fvw8es376wcxxv6u5lxgmh020tlaj77k57rwuzee8qd9a6jqdp2xys9xct5da3kx6twv9kk7m3qg3hkccm9ypxxzar5v5cqp5ufncstk7609dzjg5pm9vjsnf8aphvncpzndup9ly640ggzev76yyazzaxx5uachlp0ld62qlf4qvp7a9w7m4lyagwvehh5cjh2gr90sqet6hjs
{
"currency" : "tb",
"created_at" : 1560341140,
"expiry" : 3600,
"payee" : "03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134",
"msatoshi" : 1200000,
"amount_msat" : "1200000msat",
"description" : "1 Satoccinamon Dolce Latte",
"min_final_cltv_expiry" : 20,
"payment_hash" : "1c14f4b1c7cc23ed3b063335ca7cc8dddea7affd97bd6a786ee0b39381a5eea4",
"signature" : "3045022100e267882eded3cad149140ecac942693f43764f0114dbc097e4d55e840b2cf68802204e885d31a9cee2ff0bfedd281f4d40c0fba577b75f93a873337bd312ba9032be"
}
// sendpay
$ lightning-cli sendpay '[{"id" : "02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248","channel" : "1542376x20x0","direction" : 1,"msatoshi" : 1201022,"amount_msat" : "1201022msat","delay" : 157},{"id" : "034fe52e98a0e9d3c21b767e1b371881265d8c7578c21f5afd6d6438da10348b36","channel" : "1514318x209x0","direction" : 0,"msatoshi" : 1200021,"amount_msat" : "1200021msat","delay" : 13},{"id" : "03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134","channel" : "1513532x23x1","direction" : 0,"msatoshi" : 1200000,"amount_msat" : "1200000msat","delay" : 9}]' 1c14f4b1c7cc23ed3b063335ca7cc8dddea7affd97bd6a786ee0b39381a5eea4
{
"message" : "Monitor status with listpayments or waitsendpay",
"id" : 2,
"payment_hash" : "1c14f4b1c7cc23ed3b063335ca7cc8dddea7affd97bd6a786ee0b39381a5eea4",
"destination" : "03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134",
"msatoshi" : 1200000,
"amount_msat" : "1200000msat",
"msatoshi_sent" : 1201022,
"amount_sent_msat" : "1201022msat",
"created_at" : 1560342528,
"status" : "pending"
}
// check the status of the payment
$ lightning-cli listpayments
{
"payments" : [
{
"id" : 1,
"payment_hash" : "a6e482c538b6e2469a0d47c35319783b3987b3c542aa8dc4623dfca91d288a96",
"destination" : "03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134",
"msatoshi" : 1200000,
"amount_msat" : "1200000msat",
"msatoshi_sent" : 1201035,
"amount_sent_msat" : "1201035msat",
"created_at" : 1560268918,
"status" : "complete",
"payment_preimage" : "c718e470dcf429280c611afba095c7396e219d60e590c6ee6beca8042f616483",
"bolt11" : "lntb12u1pw0ljy4pp55mjg93fckm3ydxsdglp4xxtc8vuc0v79g24gm3rz8h72j8fg32tqdp2xys9xct5da3kx6twv9kk7m3qg3hkccm9ypxxzar5v5cqp5336eqcvsmkx9507p6r82ekralj82jl3npv0v2k8auj2kkgmc9l68mmmzkxvpcnzd3feyygp8hw6wq2qup6f97zfjlm2hzhlk4a9veegqstahde"
},
{
"id" : 2,
"payment_hash" : "1c14f4b1c7cc23ed3b063335ca7cc8dddea7affd97bd6a786ee0b39381a5eea4",
"destination" : "03933884aaf1d6b108397e5efe5c86bcf2d8ca8d2f700eda99db9214fc2712b134",
"msatoshi" : 1200000,
"amount_msat" : "1200000msat",
"msatoshi_sent" : 1201022,
"amount_sent_msat" : "1201022msat",
"created_at" : 1560342528,
"status" : "complete",
"payment_preimage" : "92ef9e7fd0d7d54565f83e623b8182fdb2884cc6c81071cb8ef3797da4a7efd5"
}
]
}
// listfunds after payment
$ lightning-cli listfunds
{
"outputs" : [
{
"txid" : "9c72f084d300898e566b96f049611fcd1a58d8fc498916e0e6bad2ff8ecb7366",
"output" : 1,
"value" : 92846,
"amount_msat" : "92846000msat",
"address" : "tb1qyee36f2jmsytxxymwzc8rps7e7gmkky04lvtz6",
"status" : "confirmed"
}
],
"channels" : [
{
"peer_id" : "02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248",
"short_channel_id" : "1542376x20x0",
"channel_sat" : 17597,
"our_amount_msat" : "17597000msat",
"channel_total_sat" : 20000,
"amount_msat" : "20000000msat",
"funding_txid" : "9c72f084d300898e566b96f049611fcd1a58d8fc498916e0e6bad2ff8ecb7366"
}
]
}
// listpeers after payment
$ lightning-cli listpeers
{
"peers" : [
{
"id" : "02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248",
"connected" : true,
"netaddr" : [
"23.237.77.12:9735"
],
"globalfeatures" : "",
"localfeatures" : "82",
"channels" : [
{
"state" : "CHANNELD_NORMAL",
"scratch_txid" : "743a7677371cea3cb4b75efdb4934ff3a1a8bdce9a152cf9266b057b24c6f300",
"owner" : "lightning_channeld",
"short_channel_id" : "1542376x20x0",
"direction" : 1,
"channel_id" : "6673cb8effd2bae6e0168949fcd8581acd1f6149f0966b568e8900d384f0729c",
"funding_txid" : "9c72f084d300898e566b96f049611fcd1a58d8fc498916e0e6bad2ff8ecb7366",
"private" : false,
"funding_allocation_msat" : {
"02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248" : 0,
"023a41771d55140a27c35687727a4b51bc6b58254129bd216fb000f405b7701cb4" : 20000000
},
"funding_msat" : {
"02312627fdf07fbdd7e5ddb136611bdde9b00d26821d14d94891395452f67af248" : "0msat",
"023a41771d55140a27c35687727a4b51bc6b58254129bd216fb000f405b7701cb4" : "20000000msat"
},
"msatoshi_to_us" : 17597943,
"to_us_msat" : "17597943msat",
"msatoshi_to_us_min" : 17597943,
"min_to_us_msat" : "17597943msat",
"msatoshi_to_us_max" : 20000000,
"max_to_us_msat" : "20000000msat",
"msatoshi_total" : 20000000,
"total_msat" : "20000000msat",
"dust_limit_satoshis" : 546,
"dust_limit_msat" : "546000msat",
"max_htlc_value_in_flight_msat" : 18446744073709551615,
"max_total_htlc_in_msat" : "18446744073709551615msat",
"their_channel_reserve_satoshis" : 546,
"their_reserve_msat" : "546000msat",
"our_channel_reserve_satoshis" : 546,
"our_reserve_msat" : "546000msat",
"spendable_msatoshi" : 17051943,
"spendable_msat" : "17051943msat",
"htlc_minimum_msat" : 0,
"minimum_htlc_in_msat" : "0msat",
"their_to_self_delay" : 6,
"our_to_self_delay" : 144,
"max_accepted_htlcs" : 483,
"status" : [
"CHANNELD_NORMAL:Reconnected, and reestablished.",
"CHANNELD_NORMAL:Funding transaction locked. Channel announced."
],
"in_payments_offered" : 0,
"in_msatoshi_offered" : 0,
"in_offered_msat" : "0msat",
"in_payments_fulfilled" : 0,
"in_msatoshi_fulfilled" : 0,
"in_fulfilled_msat" : "0msat",
"out_payments_offered" : 3,
"out_msatoshi_offered" : 3603071,
"out_offered_msat" : "3603071msat",
"out_payments_fulfilled" : 2,
"out_msatoshi_fulfilled" : 2402057,
"out_fulfilled_msat" : "2402057msat",
"htlcs" : []
}
]
},
{
"id" : "03f44acc1df8639efbe5099da403f213a4ce5bbe6f9bdac7bfa26dcc338761e9de",
"connected" : true,
"netaddr" : [
"207.154.224.115:9735"
],
"globalfeatures" : "",
"localfeatures" : "81",
"channels" : []
}
]
}