Network monitor (IOS)

Author: enriqueviard

ios/RNTwilioClient/RNNetworkMonitor.h

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+//
+//  RNNetworkMonitor.h
+//  RNTwilioClient
+//
+//  Created by Enrique Viard on 7/21/21.
+//  Copyright © 2021 No Good Software Inc. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import <React/RCTBridgeModule.h>
+
+@interface RNNetworkMonitor: NSObject<RCTBridgeModule>
+- (void)startNetworkMonitoring;
+- (void)stopNetworkMonitoring;
+@end

ios/RNTwilioClient/RNNetworkMonitor.m

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+//
+//  RNReachability.m
+//  RNTwilioClient
+//
+//  Created by Enrique Viard on 7/21/21.
+//  Copyright © 2021 No Good Software Inc. All rights reserved.
+//
+
+#import "RNNetworkMonitor.h"
+@import Foundation;
+@import Network;
+
+@interface RNNetworkMonitor()
+
+@property (nonatomic, strong) nw_path_monitor_t monitor;
+@property (nonatomic, strong) dispatch_queue_t monitorQueue;
+@property (nonatomic, strong) nw_path_t path;
+@property (nonatomic, strong) NSString *pathDescription;
+
+@end
+
+@implementation RNNetworkMonitor
+
+- (void)startNetworkMonitoring {
+    dispatch_queue_attr_t attrs = dispatch_queue_attr_make_with_qos_class(DISPATCH_QUEUE_SERIAL, QOS_CLASS_UTILITY, DISPATCH_QUEUE_PRIORITY_DEFAULT);
+    self.monitorQueue = dispatch_queue_create("com.ngs.network.monitor", attrs);
+    
+    self.monitor = nw_path_monitor_create();
+    nw_path_monitor_set_queue(self.monitor, self.monitorQueue);
+    nw_path_monitor_set_update_handler(self.monitor, ^(nw_path_t _Nonnull path) {
+        self.path = path;
+        nw_path_status_t status = nw_path_get_status(path);
+        BOOL isWiFi = nw_path_uses_interface_type(path, nw_interface_type_wifi);
+        BOOL isCellular = nw_path_uses_interface_type(path, nw_interface_type_cellular);
+        self.pathDescription = isWiFi ? @"WIFI" : @"CELLULAR";
+        
+        NSDictionary *userInfo = @{
+                                    @"path" : self.pathDescription,
+                                    @"status" : @(status),
+                                 };
+        
+        dispatch_async(dispatch_get_main_queue(), ^{
+            NSLog(@"[IIMobile - RNNetworkMonitor] onNetworkStatusChange %@", userInfo);
+            [NSNotificationCenter.defaultCenter postNotificationName:@"onNetworkStatusChange" object:nil userInfo:userInfo];
+        });
+    });
+    
+    nw_path_monitor_start(self.monitor);
+}
+
+- (void)stopNetworkMonitoring {
+    nw_path_monitor_cancel(self.monitor);
+}
+
+- (NSString*)getCurrentPath {
+    return self.pathDescription;
+}
+
++ (NSString *)moduleName {
+    return @"RNNetworkMonitor";
+}
+
+@end
+