Set url session task depending on backgroundTask value

Author: utkuimd

ios/ReactNativeBlobUtilRequest.h

@@ -33,7 +33,7 @@
 @property (nullable, nonatomic) NSError * error;
 @property (nullable, nonatomic) ReactNativeBlobUtilProgress *progressConfig;
 @property (nullable, nonatomic) ReactNativeBlobUtilProgress *uploadProgressConfig;
-@property (nullable, nonatomic, weak) NSURLSessionDataTask *task;
+@property (nullable, nonatomic, weak) NSURLSessionTask *task;
 
 - (void) sendRequest:(NSDictionary  * _Nullable )options
        contentLength:(long)contentLength

ios/ReactNativeBlobUtilRequest.mm

@@ -167,9 +167,15 @@ - (void) sendRequest:(__weak NSDictionary  * _Nullable )options
         respFile = NO;
     }
 
-    NSURLSessionDataTask *task = [session dataTaskWithRequest:req];
-    [task resume];
-    self.task = task;
+    if(backgroundTask) {
+        NSURLSessionDownloadTask *task = [session downloadTaskWithRequest:req];
+        [task resume];
+        self.task = task;
+    } else {
+        NSURLSessionDataTask *task = [session dataTaskWithRequest:req];
+        [task resume];
+        self.task = task;
+    }
 
     // network status indicator
     if ([[options objectForKey:CONFIG_INDICATOR] boolValue]) {