1. Return statusCode, headers for uploadFiles method

2. Fix README

README.md

@@ -198,16 +198,6 @@ var files = [
     filetype: 'audio/x-m4a'
   }
 ];
-// create an object of options
-var options = {
-  method: 'POST',
-  headers: {
-    'Accept': 'application/json',
-  },
-  fields: {
-    'hello': 'world',
-  }
-};
 
 var uploadBegin = (response) => {
   var jobId = response.jobId;
@@ -220,9 +210,25 @@ var uploadProgress = (response) => {
 };
 
 // upload files
-RNFS.uploadFiles(uploadUrl, files, options, uploadBegin, uploadProgress)
+RNFS.uploadFiles({
+    toUrl: uploadUrl,
+    files: files,
+    method: 'POST',
+    headers: {
+      'Accept': 'application/json',
+    },
+    fields: {
+      'hello': 'world',
+    },
+    begin: uploadBegin,
+    progress: uploadProgress
+  })
   .then((response) => {
-    console.log('FILES UPLOADED!');
+    if (response.statusCode == 200) {
+      console.log('FILES UPLOADED!'); // response.statusCode, response.headers, response.body
+    } else {
+      console.log('SERVER ERROR');
+    }
   })
   .catch((err) => {
     if(err.description === "cancelled") {
@@ -358,7 +364,7 @@ Abort the current download job with this ID. The partial file will remain on the
 
 ```
 {
-  url (String) - URL to upload file to
+  toUrl (String) - URL to upload file to
   files (Array) - An array of objects with the file information to be uploaded.
   method (String) - (Optional) Default is 'POST', supports 'POST' and 'PUT'
   headers (Object) - (Optional) An object of headers to be passed to the server

RNFSManager.m

@@ -250,9 +250,14 @@ RCT_EXPORT_METHOD(uploadFiles:(NSDictionary *)options
   params.fields = fields;
   params.method = method;
 
-  params.completeCallback = ^(NSString* response) {
+  params.completeCallback = ^(NSString* body, NSURLResponse *resp) {
+    
     NSMutableDictionary* result = [[NSMutableDictionary alloc] initWithDictionary: @{@"jobId": jobId,
-                             @"response": response}];
+                             @"body": body}];
+    if ([resp isKindOfClass:[NSHTTPURLResponse class]]) {
+      [result setValue:((NSHTTPURLResponse *)resp).allHeaderFields forKey:@"headers"];
+      [result setValue:[NSNumber numberWithUnsignedInteger:((NSHTTPURLResponse *)resp).statusCode] forKey:@"statusCode"];
+    }
     return callback(@[[NSNull null], result]);
   };
 

Uploader.h

@@ -1,7 +1,7 @@
 #import <Foundation/Foundation.h>
 #import <MobileCoreServices/MobileCoreServices.h>
 
-typedef void (^UploadCompleteCallback)(NSString*);
+typedef void (^UploadCompleteCallback)(NSString*, NSURLResponse *);
 typedef void (^UploadErrorCallback)(NSError*);
 typedef void (^UploadBeginCallback)();
 typedef void (^UploadProgressCallback)(NSNumber*, NSNumber*);

Uploader.m

@@ -98,7 +98,10 @@
 
   NSURLSessionConfiguration *sessionConfiguration = [NSURLSessionConfiguration defaultSessionConfiguration];
   NSURLSession *session = [NSURLSession sessionWithConfiguration:sessionConfiguration delegate:(id)self delegateQueue:[NSOperationQueue mainQueue]];
-  _task = [session dataTaskWithRequest:req];
+  _task = [session dataTaskWithRequest:req completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
+      NSString * str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+      return _params.completeCallback(str, response);
+  }];
   [_task resume];
   _params.beginCallback();
 }
@@ -133,12 +136,6 @@
   return _params.progressCallback([NSNumber numberWithLongLong:totalBytesExpectedToSend], [NSNumber numberWithLongLong:totalBytesSent]);
 }
 
-- (void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dataTask didReceiveData:(NSData *)data
-{
-  NSString * str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
-  return _params.completeCallback(str);
-}
-
 - (void)stopUpload
 {
   [_task cancel];