Optimize display request method

CountlyFeedbackWidget.m

@@ -174,46 +174,61 @@ - (NSURLRequest *)dataRequest
     }
 }
 
-- (NSURLRequest *)displayRequest
-{
-    NSString* queryString = [NSString stringWithFormat:@"%@=%@&%@=%@&%@=%@&%@=%@&%@=%@&%@=%@&%@=%@",
-                             kCountlyQSKeyAppKey, CountlyConnectionManager.sharedInstance.appKey.cly_URLEscaped,
-                             kCountlyQSKeyDeviceID, CountlyDeviceInfo.sharedInstance.deviceID.cly_URLEscaped,
-                             kCountlyQSKeySDKName, CountlyCommon.sharedInstance.SDKName,
-                             kCountlyQSKeySDKVersion, CountlyCommon.sharedInstance.SDKVersion,
-                             kCountlyFBKeyAppVersion, CountlyDeviceInfo.appVersion,
-                             kCountlyFBKeyPlatform, CountlyDeviceInfo.osName,
-                             kCountlyFBKeyWidgetID, self.ID];
+- (NSURLRequest *)displayRequest {
+    // Create the base URL with endpoint and feedback type
+    NSMutableString *URL = [NSMutableString stringWithFormat:@"%@%@/%@",
+                            CountlyConnectionManager.sharedInstance.host,
+                            kCountlyEndpointFeedback,
+                            self.type];
 
-    queryString = [queryString stringByAppendingFormat:@"&%@=%@",
-                   kCountlyAppVersionKey, CountlyDeviceInfo.appVersion];
+    // Create a dictionary for query parameters
+    NSDictionary *queryParams = @{
+        kCountlyQSKeyAppKey: CountlyConnectionManager.sharedInstance.appKey.cly_URLEscaped,
+        kCountlyQSKeyDeviceID: CountlyDeviceInfo.sharedInstance.deviceID.cly_URLEscaped,
+        kCountlyQSKeySDKName: CountlyCommon.sharedInstance.SDKName,
+        kCountlyQSKeySDKVersion: CountlyCommon.sharedInstance.SDKVersion,
+        kCountlyFBKeyAppVersion: CountlyDeviceInfo.appVersion,
+        kCountlyFBKeyPlatform: CountlyDeviceInfo.osName,
+        kCountlyFBKeyWidgetID: self.ID,
+        kCountlyAppVersionKey: CountlyDeviceInfo.appVersion,
+    };
 
+    // Create the query string
+    NSMutableArray *queryItems = [NSMutableArray array];
+    [queryParams enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
+        [queryItems addObject:[NSString stringWithFormat:@"%@=%@", key, obj]];
+    }];
+
+    NSString *queryString = [queryItems componentsJoinedByString:@"&"];
+
+    // Append checksum to the query string
     queryString = [CountlyConnectionManager.sharedInstance appendChecksum:queryString];
 
-    NSMutableString* URL = CountlyConnectionManager.sharedInstance.host.mutableCopy;
-    [URL appendString:kCountlyEndpointFeedback];
-    NSString* feedbackTypeEndpoint = [@"/" stringByAppendingString:self.type];
-    [URL appendString:feedbackTypeEndpoint];
+    // Add the query string to the URL
     [URL appendFormat:@"?%@", queryString];
 
-    // customParams is an NSDictionary containing the custom key-value pairs
-    NSDictionary *customParams = @{@"tc": @"1"};
+    // Create custom parameters
+    NSDictionary *customParams = @{@"tc": @"1",
+                                   @"rw": @"1",
+                                   @"xb": @"1"};
 
-    NSMutableString *customString = [NSMutableString new];
-    [customString appendString:@"{"];
-    [customParams enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
-        [customString appendFormat:@"\"%@\":%@,", key, obj];
-    }];
-    [customString deleteCharactersInRange:NSMakeRange(customString.length - 1, 1)]; // Remove the last comma
-    [customString appendString:@"}"];
+    // Create JSON data from custom parameters
+    NSError *error;
+    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:customParams options:0 error:&error];
 
-    // Append the custom parameter to the URL
-    [URL appendFormat:@"&custom=%@", customString.cly_URLEscaped];
+    if (!jsonData) {
+        NSLog(@"Failed to serialize JSON: %@", error);
+    } else {
+        NSString *customString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
+        // Append the custom parameter to the URL
+        [URL appendFormat:@"&custom=%@", customString.cly_URLEscaped];
+    }
 
-    NSURLRequest* request = [NSURLRequest requestWithURL:[NSURL URLWithString:URL]];
-    return request;
+    // Create and return the NSURLRequest
+    return [NSURLRequest requestWithURL:[NSURL URLWithString:URL]];
 }
 
+
 - (void)recordReservedEventForDismissing
 {
     [self recordReservedEventWithSegmentation:@{kCountlyFBKeyClosed: @1}];