Add extra fields for channel RPC

src/rpc/README.md

@@ -695,6 +695,15 @@ The channel data structure
 * `received_tlc_balance` - <em>u128</em>, The received balance of the channel
 * `latest_commitment_transaction_hash` - <em>`Option<H256>`</em>, The hash of the latest commitment transaction
 * `created_at` - <em>u64</em>, The time the channel was created at, in milliseconds from UNIX epoch
+* `enabled` - <em>bool</em>, Whether the channel is enabled
+* `tlc_expiry_delta` - <em>u64</em>, The expiry delta to forward a tlc, in milliseconds, default to 1 day, which is 24 * 60 * 60 * 1000 milliseconds
+ This parameter can be updated with rpc `update_channel` later.
+* `tlc_fee_proportional_millionths` - <em>u128</em>, The fee proportional millionths for a TLC, proportional to the amount of the forwarded tlc.
+ The unit is millionths of the amount. default is 1000 which means 0.1%.
+ This parameter can be updated with rpc `update_channel` later.
+ Not that, we use outbound channel to calculate the fee for TLC forwarding. For example,
+ if we have a path A -> B -> C, then the fee B requires for TLC forwarding, is calculated
+ the channel configuration of B and C, not A and B.
 ---
 
 <a id="#type-channelinfo"></a>

src/rpc/channel.rs

@@ -250,6 +250,20 @@ pub struct Channel {
     /// The time the channel was created at, in milliseconds from UNIX epoch
     #[serde_as(as = "U64Hex")]
     pub created_at: u64,
+    /// Whether the channel is enabled
+    pub enabled: bool,
+    /// The expiry delta to forward a tlc, in milliseconds, default to 1 day, which is 24 * 60 * 60 * 1000 milliseconds
+    /// This parameter can be updated with rpc `update_channel` later.
+    #[serde_as(as = "U64Hex")]
+    pub tlc_expiry_delta: u64,
+    /// The fee proportional millionths for a TLC, proportional to the amount of the forwarded tlc.
+    /// The unit is millionths of the amount. default is 1000 which means 0.1%.
+    /// This parameter can be updated with rpc `update_channel` later.
+    /// Not that, we use outbound channel to calculate the fee for TLC forwarding. For example,
+    /// if we have a path A -> B -> C, then the fee B requires for TLC forwarding, is calculated
+    /// the channel configuration of B and C, not A and B.
+    #[serde_as(as = "U128Hex")]
+    pub tlc_fee_proportional_millionths: u128,
 }
 
 #[serde_as]
@@ -427,6 +441,11 @@ where
                             .as_ref()
                             .map(|tx| tx.clone().into_view().hash().unpack()),
                         created_at: state.get_created_at_in_millis(),
+                        enabled: state.local_tlc_info.enabled,
+                        tlc_expiry_delta: state.local_tlc_info.tlc_expiry_delta,
+                        tlc_fee_proportional_millionths: state
+                            .local_tlc_info
+                            .tlc_fee_proportional_millionths,
                     })
             })
             .collect();

tests/bruno/e2e/3-nodes-transfer/04-node2-get-auto-accepted-channel.bru

@@ -31,6 +31,9 @@ body:json {
 assert {
   res.body.error: isUndefined
   res.body.result.channels: isDefined
+  res.body.result.channels[0].enabled: isDefined
+  res.body.result.channels[0].tlc_expiry_delta: isDefined
+  res.body.result.channels[0].tlc_fee_proportional_millionths: isDefined
 }
 
 script:post-response {