<p>The <code>update_add_htlc</code> message transports the <code>onion</code> with payment / routing information. The information itself is desced in the onion routing chapter that explains how nodes can handle this</p>

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2021-12-31T17:10:57.637Z
2021-12-31T17:10:57.637Z
Rene Pickhardt
<p>I am quite new to the whole blockchain space in general and was reading about Lightning Network. In LN which message type is used to encode payment information? For example, in the below book, there are references to 7 different messages exchanged between channel partners.</p>
<p><a href="https://github.com/lnbook/lnbook/blob/develop/07_payment_channels.asciidoc" rel="nofollow noreferrer">https://github.com/lnbook/lnbook/blob/develop/07_payment_channels.asciidoc</a></p>
<p>But none of them seem to transfer information about payments; something like &quot;Bob, I am sending you 10 sats&quot;</p>
<p>I also looked at the Bolt specification repo on GitHub but was not able to locate this. Is there something that I missed?</p>

<lightning-network><lightning-rfc>
How Lightning Network sends payments
Arun
# How Lightning Network sends payments

(Asked by: username_0 on 2021-12-31)

I am quite new to the whole blockchain space in general and was reading about Lightning Network. In LN which message type is used to encode payment information? For example, in the below book, there are references to 7 different messages exchanged between channel partners.

<https://github.com/lnbook/lnbook/blob/develop/07_payment_channels.asciidoc>

But none of them seem to transfer information about payments; something like "Bob, I am sending you 10 sats"

I also looked at the Bolt specification repo on GitHub but was not able to locate this. Is there something that I missed?

**Tags:** lightning-network, lightning-rfc


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## 1 answers

### Answer by username_1 on 2021-12-31. Score: 0

The `update_add_htlc` message transports the `onion` with payment / routing information. The information itself is desced in the onion routing chapter that explains how nodes can handle this


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