From 151876277233befdbe7c0d9818039aa08ad15d1c Mon Sep 17 00:00:00 2001
From: Marc Rousavy <me@mrousavy.com>
Date: Tue, 20 Oct 2026 20:23:47 +0200
Subject: [PATCH] Fix nullability annotations in iOS networking headers

---
 .../Libraries/Network/RCTHTTPRequestHandler.h     |  8 ++++++--
 .../React/Base/RCTMultipartDataTask.h             | 15 ++++++++++-----
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/packages/react-native/Libraries/Network/RCTHTTPRequestHandler.h b/packages/react-native/Libraries/Network/RCTHTTPRequestHandler.h
index 15d986e529c8..7c86b27bae07 100644
--- a/packages/react-native/Libraries/Network/RCTHTTPRequestHandler.h
+++ b/packages/react-native/Libraries/Network/RCTHTTPRequestHandler.h
@@ -8,12 +8,14 @@
 #import <React/RCTInvalidating.h>
 #import <React/RCTURLRequestHandler.h>
 
+NS_ASSUME_NONNULL_BEGIN
+
 typedef NSURLSessionConfiguration *_Nullable (^NSURLSessionConfigurationProvider)(void);
 /**
  *  The block provided via this function will provide the NSURLSessionConfiguration for all HTTP requests made by the
  * app.
  */
-RCT_EXTERN void RCTSetCustomNSURLSessionConfigurationProvider(NSURLSessionConfigurationProvider /*provider*/);
+RCT_EXTERN void RCTSetCustomNSURLSessionConfigurationProvider(NSURLSessionConfigurationProvider _Nullable /*provider*/);
 
 typedef NSURLRequest *_Nullable (^RCTHTTPRequestInterceptor)(NSURLRequest *request);
 /**
@@ -21,7 +23,7 @@ typedef NSURLRequest *_Nullable (^RCTHTTPRequestInterceptor)(NSURLRequest *reque
  * they are sent. Return a modified request to override, or nil to use the
  * original request unchanged.
  */
-RCT_EXTERN void RCTSetCustomHTTPRequestInterceptor(RCTHTTPRequestInterceptor /*interceptor*/);
+RCT_EXTERN void RCTSetCustomHTTPRequestInterceptor(RCTHTTPRequestInterceptor _Nullable /*interceptor*/);
 
 /**
  * This is the default RCTURLRequestHandler implementation for HTTP requests.
@@ -29,3 +31,5 @@ RCT_EXTERN void RCTSetCustomHTTPRequestInterceptor(RCTHTTPRequestInterceptor /*i
 @interface RCTHTTPRequestHandler : NSObject <RCTURLRequestHandler, RCTInvalidating>
 
 @end
+
+NS_ASSUME_NONNULL_END
diff --git a/packages/react-native/React/Base/RCTMultipartDataTask.h b/packages/react-native/React/Base/RCTMultipartDataTask.h
index 9b94a260a902..b161bf33b325 100644
--- a/packages/react-native/React/Base/RCTMultipartDataTask.h
+++ b/packages/react-native/React/Base/RCTMultipartDataTask.h
@@ -10,11 +10,13 @@
 #import <React/RCTDefines.h>
 #import <React/RCTMultipartStreamReader.h>
 
+NS_ASSUME_NONNULL_BEGIN
+
 typedef void (^RCTMultipartDataTaskCallback)(
     NSInteger statusCode,
-    NSDictionary *headers,
-    NSData *content,
-    NSError *error,
+    NSDictionary *_Nullable headers,
+    NSData *_Nullable content,
+    NSError *_Nullable error,
     BOOL done);
 
 typedef NSURLRequest *_Nullable (^RCTMultipartDataTaskRequestInterceptor)(NSURLRequest *request);
@@ -23,14 +25,17 @@ typedef NSURLRequest *_Nullable (^RCTMultipartDataTaskRequestInterceptor)(NSURLR
  * requests before they are sent. Return a modified request to override, or nil
  * to use the original request unchanged.
  */
-RCT_EXTERN void RCTSetCustomMultipartDataTaskRequestInterceptor(RCTMultipartDataTaskRequestInterceptor /*interceptor*/);
+RCT_EXTERN void RCTSetCustomMultipartDataTaskRequestInterceptor(
+    RCTMultipartDataTaskRequestInterceptor _Nullable /*interceptor*/);
 
 @interface RCTMultipartDataTask : NSObject
 
 - (instancetype)initWithURL:(NSURL *)url
                 partHandler:(RCTMultipartDataTaskCallback)partHandler
-            progressHandler:(RCTMultipartProgressCallback)progressHandler;
+            progressHandler:(nullable RCTMultipartProgressCallback)progressHandler;
 
 - (void)startTask;
 
 @end
+
+NS_ASSUME_NONNULL_END