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Update 13_4_Paying_a_Invoice.md

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13_4_Paying_a_Invoice.md
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@ -12,12 +12,17 @@ Invoices have two parts:
- Data part : UNIX Timestamp + tagged parts include a payment hash, the pubkey of the payee node, an optional description of the payment, an expiration time, and some extra routing information.
Conside this ln invoice `lntb1m1p03ft7lpp5zve4dsgwgdxekqqq39vhgcnv6gfa2g2ktqy9lf0aph60d0388xmqdqqcqzpgsp545a9fphd8m5ayplcu8m5845cr4m0zcnyxddwv4g3zm32yprkfd4q9qy9qsq3s4y6cmyvh0qw9qm0sf80llxyyjy9xwrjds7lpkqhzv247jsm6q5me8t9e6ftquma664gz5u4a2rvs0yf4f0mlwtwfs6as5uj5djzhcqpnqlcj
Conside this ln invoice
`lntb1m1p03ft7lpp5zve4dsgwgdxekqqq39vhgcnv6gfa2g2ktqy9lf0aph60d0388xmqdqqcqzpgsp545a9fphd8m5ayplcu8m5845cr4m0zcnyxddwv4g3zm32yprkfd4q9qy9qsq3s4y6cmyvh0qw9qm0sf80llxyyjy9xwrjds7lpkqhzv247jsm6q5me8t9e6ftquma664gz5u4a2rvs0yf4f0mlwtwfs6as5uj5djzhcqpnqlcj
`
This invoice starts with prefix ln+tb+1m that indicates milli, so you should multi by 0.001. That means we'll pay an invoice by 100000 satoshis.
### Understanding your invoice
If you want to decode your lightning invoice you should use `lightning-cli decodepay ` command that receives a string and checks and parses as specified by the [BOLT 11 specification](https://github.com/lightningnetwork/lightning-rfc/blob/master/11-payment-encoding.md).
```
c$lightning-cli --network=testnet decodepay lntb1m1p03ft7lpp5zve4dsgwgdxekqqq39vhgcnv6gfa2g2ktqy9lf0aph60d0388xmqdqqcqzpgsp545a9fphd8m5ayplcu8m5845cr4m0zcnyxddwv4g3zm32yprkfd4q9qy9qsq3s4y6cmyvh0qw9qm0sf80llxyyjy9xwrjds7lpkqhzv247jsm6q5me8t9e6ftquma664gz5u4a2rvs0yf4f0mlwtwfs6as5uj5djzhcqpnqlcj
{
@ -37,6 +42,8 @@ c$lightning-cli --network=testnet decodepay lntb1m1p03ft7lpp5zve4dsgwgdxekqqq39v
```
### Check your balance
As we did in previous chapter we have established an channel with a total capacity of 280.000 sats.
```
c$ lightning-cli --network=testnet listfunds
{
@ -60,7 +67,7 @@ c$ lightning-cli --network=testnet listfunds
"state": "CHANNELD_AWAITING_LOCKIN",
"channel_sat": 280000,
"our_amount_msat": "280000000msat",
"channel_total_sat": 280000,
"channel_total_sat": **280000**,
"amount_msat": "280000000msat",
"funding_txid": "9843c037f54a4660b297a9f2454e11d26d8659f084a284a5740bb15cb1d97aa6",
"funding_output": 1
@ -69,9 +76,10 @@ c$ lightning-cli --network=testnet listfunds
}
```
### Paying your invoice
You should use `lightning-cli pay ` command to pay the invoice. The pay RPC command attempts to find a route to the given destination, and send the funds asked in amount value.
```
c$lightning-cli --network=testnet pay
lntb1m1p03ft7lpp5zve4dsgwgdxekqqq39vhgcnv6gfa2g2ktqy9lf0aph60d0388xmqdqqcqzpgsp545a9fphd8m5ayplcu8m5845cr4m0zcnyxddwv4g3zm32yprkfd4q9qy9qsq3s4y6cmyvh0qw9qm0sf80llxyyjy9xwrjds7lpkqhzv247jsm6q5me8t9e6ftquma664gz5u4a2rvs0yf4f0mlwtwfs6as5uj5djzhcqpnqlcj
@ -92,6 +100,8 @@ lntb1m1p03ft7lpp5zve4dsgwgdxekqqq39vhgcnv6gfa2g2ktqy9lf0aph60d0388xmqdqqcqzpgsp5
### Check your balance
We've performed payment successfully
```
c$ lightning-cli --network=testnet listfunds
{