From 034cb724b8571249644d3167ec93a9801de18a07 Mon Sep 17 00:00:00 2001
From: benbuschmann <ben@rootnaturally.com>
Date: Fri, 24 May 2024 04:19:53 -0700
Subject: [PATCH] Add feerate percentiles to blockinfo endpoint (#3753)

---
 docs/src/inscriptions/recursion.md | 4 ++++
 src/api.rs                         | 1 +
 src/subcommand/server.rs           | 9 +++++++++
 3 files changed, 14 insertions(+)

diff --git a/docs/src/inscriptions/recursion.md b/docs/src/inscriptions/recursion.md
index ea901eda9b..e20a2ac20a 100644
--- a/docs/src/inscriptions/recursion.md
+++ b/docs/src/inscriptions/recursion.md
@@ -78,6 +78,9 @@ Examples
 
 - `/r/blockinfo/0`:
 
+Note: `feerate_percentiles` are feerates at the 10th, 25th, 50th, 75th, and 90th
+percentile in sats/vB.
+
 ```json
 {
   "average_fee": 0,
@@ -87,6 +90,7 @@ Examples
   "confirmations": 0,
   "difficulty": 0.0,
   "hash": "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
+  "feerate_percentiles": [0, 0, 0, 0, 0],
   "height": 0,
   "max_fee": 0,
   "max_fee_rate": 0,
diff --git a/src/api.rs b/src/api.rs
index 9efdf1e48d..177cf92bf6 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -50,6 +50,7 @@ pub struct BlockInfo {
   pub confirmations: i32,
   pub difficulty: f64,
   pub hash: BlockHash,
+  pub feerate_percentiles: [u64; 5],
   pub height: u32,
   pub max_fee: u64,
   pub max_fee_rate: u64,
diff --git a/src/subcommand/server.rs b/src/subcommand/server.rs
index e6e168f2a1..6178cedbe7 100644
--- a/src/subcommand/server.rs
+++ b/src/subcommand/server.rs
@@ -1296,6 +1296,13 @@ impl Server {
         confirmations: info.confirmations,
         difficulty: info.difficulty,
         hash,
+        feerate_percentiles: [
+          stats.fee_rate_percentiles.fr_10th.to_sat(),
+          stats.fee_rate_percentiles.fr_25th.to_sat(),
+          stats.fee_rate_percentiles.fr_50th.to_sat(),
+          stats.fee_rate_percentiles.fr_75th.to_sat(),
+          stats.fee_rate_percentiles.fr_90th.to_sat(),
+        ],
         height: info.height.try_into().unwrap(),
         max_fee: stats.max_fee.to_sat(),
         max_fee_rate: stats.max_fee_rate.to_sat(),
@@ -6421,6 +6428,7 @@ next
         hash: "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"
           .parse()
           .unwrap(),
+        feerate_percentiles: [0, 0, 0, 0, 0],
         height: 0,
         max_fee: 0,
         max_fee_rate: 0,
@@ -6460,6 +6468,7 @@ next
         hash: "56d05060a0280d0712d113f25321158747310ece87ea9e299bde06cf385b8d85"
           .parse()
           .unwrap(),
+        feerate_percentiles: [0, 0, 0, 0, 0],
         height: 1,
         max_fee: 0,
         max_fee_rate: 0,