From c9c3790b5db63bb57d2ec4618551206f5b27621d Mon Sep 17 00:00:00 2001
From: junderw <jonathan.underwood4649@gmail.com>
Date: Sun, 31 May 2026 09:52:38 +0900
Subject: [PATCH] feat: Overwrite the esplora API for fees always

---
 backend/src/api/bitcoin/bitcoin.routes.ts | 41 +++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/backend/src/api/bitcoin/bitcoin.routes.ts b/backend/src/api/bitcoin/bitcoin.routes.ts
index 4b8aecab8..c0fe41b7e 100644
--- a/backend/src/api/bitcoin/bitcoin.routes.ts
+++ b/backend/src/api/bitcoin/bitcoin.routes.ts
@@ -38,6 +38,7 @@ class BitcoinRoutes {
       .get(config.MEMPOOL.API_URL_PREFIX + 'difficulty-adjustment', this.getDifficultyChange)
       .get(config.MEMPOOL.API_URL_PREFIX + 'fees/recommended', this.getRecommendedFees)
       .get(config.MEMPOOL.API_URL_PREFIX + 'fees/precise', this.getPreciseRecommendedFees)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'fee-estimates', this.getPreciseRecommendedFeesEsploraTransformed)
       .get(config.MEMPOOL.API_URL_PREFIX + 'fees/mempool-blocks', this.getMempoolBlocks)
       .get(config.MEMPOOL.API_URL_PREFIX + 'backend-info', this.getBackendInfo)
       .get(config.MEMPOOL.API_URL_PREFIX + 'init-data', this.getInitData)
@@ -134,6 +135,46 @@ class BitcoinRoutes {
     res.json(result);
   }
 
+  private getPreciseRecommendedFeesEsploraTransformed(req: Request, res: Response) {
+    if (!mempool.isInSync()) {
+      res.statusCode = 503;
+      res.send('Service Unavailable');
+      return;
+    }
+    const result = feeApi.getPreciseRecommendedFee();
+
+    res.json({
+      '1': result.fastestFee,
+      '2': result.fastestFee,
+      '3': result.halfHourFee,
+      '4': result.halfHourFee,
+      '5': result.halfHourFee,
+      '6': result.hourFee,
+      '7': result.hourFee,
+      '8': result.hourFee,
+      '9': result.hourFee,
+      '10': result.hourFee,
+      '11': result.hourFee,
+      '12': result.hourFee,
+      '13': result.hourFee,
+      '14': result.hourFee,
+      '15': result.hourFee,
+      '16': result.hourFee,
+      '17': result.hourFee,
+      '18': result.hourFee,
+      '19': result.hourFee,
+      '20': result.hourFee,
+      '21': result.hourFee,
+      '22': result.hourFee,
+      '23': result.hourFee,
+      '24': result.hourFee,
+      '25': result.hourFee,
+      '144': result.economyFee,
+      '504': result.economyFee,
+      '1008': result.minimumFee,
+    });
+  }
+
   private getMempoolBlocks(req: Request, res: Response) {
     try {
       const result = mempoolBlocks.getMempoolBlocks();