From c71acfeb83eeb2a1dc4bd0ae28b136f50bbec040 Mon Sep 17 00:00:00 2001
From: Mehrdad Mirsamie <m.mirsamie@gmail.com>
Date: Thu, 2 Mar 2023 11:49:27 +0330
Subject: [PATCH 1/2] feature/add-fetch-client-to-options

---
 index.d.ts         | 1 +
 src/http-client.js | 7 +++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/index.d.ts b/index.d.ts
index e14f9ca1..95776049 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -9,6 +9,7 @@ declare module 'binance-api-node' {
     wsBase?: string
     wsFutures?: string
     proxy?: string
+    fetch?: unknown
   }): Binance
 
   export type ErrorCodes_LT =
diff --git a/src/http-client.js b/src/http-client.js
index 7156d6a1..fa44882c 100644
--- a/src/http-client.js
+++ b/src/http-client.js
@@ -5,6 +5,7 @@ import JSONbig from 'json-bigint'
 
 import 'isomorphic-fetch'
 
+let fetchClient = fetch;
 const BASE = 'https://api.binance.com'
 const FUTURES = 'https://fapi.binance.com'
 const COIN_FUTURES = 'https://dapi.binance.com'
@@ -121,7 +122,7 @@ const checkParams = (name, payload, requires = []) => {
  */
 const publicCall = ({ proxy, endpoints }) => (path, data, method = 'GET', headers = {}) => {
   return sendResult(
-    fetch(
+    fetchClient(
       `${
         path.includes('/fapi') || path.includes('/futures')
           ? endpoints.futures
@@ -194,7 +195,7 @@ const privateCall = ({
     const newData = noExtra ? data : { ...data, timestamp, signature }
 
     return sendResult(
-      fetch(
+      fetchClient(
         `${
           path.includes('/fapi') || path.includes('/futures')
             ? endpoints.futures
@@ -333,6 +334,8 @@ export default opts => {
     delivery: (opts && opts.httpDelivery) || COIN_FUTURES,
   }
 
+  fetchClient = fetch || opts.fetch;
+
   const pubCall = publicCall({ ...opts, endpoints })
   const deliveryPubCall = publicCall({ ...opts, endpoints: { futures: endpoints.delivery } })
   const privCall = privateCall({ ...opts, endpoints, pubCall })

From 5f695dd2e9640e39ac1bae5f88209b87337c7875 Mon Sep 17 00:00:00 2001
From: Mehrdad Mirsamie <m.mirsamie@gmail.com>
Date: Thu, 2 Mar 2023 12:33:17 +0330
Subject: [PATCH 2/2] override fetch client

---
 index.d.ts         | 2 +-
 src/http-client.js | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/index.d.ts b/index.d.ts
index 95776049..5570aa0c 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -9,7 +9,7 @@ declare module 'binance-api-node' {
     wsBase?: string
     wsFutures?: string
     proxy?: string
-    fetch?: unknown
+    fetchClient?: unknown
   }): Binance
 
   export type ErrorCodes_LT =
diff --git a/src/http-client.js b/src/http-client.js
index fa44882c..08c09d6e 100644
--- a/src/http-client.js
+++ b/src/http-client.js
@@ -334,7 +334,8 @@ export default opts => {
     delivery: (opts && opts.httpDelivery) || COIN_FUTURES,
   }
 
-  fetchClient = fetch || opts.fetch;
+  // overriding the fetch client if available in options
+  fetchClient = opts.fetchClient || fetch;
 
   const pubCall = publicCall({ ...opts, endpoints })
   const deliveryPubCall = publicCall({ ...opts, endpoints: { futures: endpoints.delivery } })