Add new property`redirects` to class RNFetchBlobResp #111

src/android/src/main/java/com/RNFetchBlob/RNFetchBlobReq.java

@@ -17,6 +17,7 @@ import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReadableArray;
 import com.facebook.react.bridge.ReadableMap;
 import com.facebook.react.bridge.ReadableMapKeySetIterator;
+import com.facebook.react.bridge.WritableArray;
 import com.facebook.react.bridge.WritableMap;
 import com.facebook.react.modules.core.DeviceEventManagerModule;
 
@@ -32,6 +33,7 @@ import java.nio.ByteBuffer;
 import java.nio.charset.CharacterCodingException;
 import java.nio.charset.Charset;
 import java.nio.charset.CharsetEncoder;
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.concurrent.TimeUnit;
 
@@ -72,6 +74,7 @@ public class RNFetchBlobReq extends BroadcastReceiver implements Runnable {
 
     ReactApplicationContext ctx;
     RNFetchBlobConfig options;
+    ArrayList<String> redirects = new ArrayList<>();
     String taskId;
     String method;
     String url;
@@ -280,6 +283,14 @@ public class RNFetchBlobReq extends BroadcastReceiver implements Runnable {
 
             final Request req = builder.build();
 
+            clientBuilder.addNetworkInterceptor(new Interceptor() {
+                @Override
+                public Response intercept(Chain chain) throws IOException {
+                    redirects.add(chain.request().url().toString());
+                    return chain.proceed(chain.request());
+                }
+            });
+
             // Add request interceptor for upload progress event
             clientBuilder.addInterceptor(new Interceptor() {
                 @Override
@@ -509,6 +520,11 @@ public class RNFetchBlobReq extends BroadcastReceiver implements Runnable {
             headers.putString(resp.headers().name(i), resp.headers().value(i));
         }
         info.putMap("headers", headers);
+        WritableArray redirectList = Arguments.createArray();
+        for(String r : redirects) {
+            redirectList.pushString(r);
+        }
+        info.putArray("redirects", redirectList);
         Headers h = resp.headers();
         if(isBlobResp) {
             info.putString("respType", "blob");

src/ios/RNFetchBlobNetwork.m

@@ -36,6 +36,7 @@ NSMutableDictionary * uploadProgressTable;
     long bodyLength;
     NSMutableDictionary * respInfo;
     NSInteger respStatus;
+    NSMutableArray * redirects;
 }
 
 @end
@@ -125,6 +126,8 @@ NSOperationQueue *taskQueue;
     self.expectedBytes = 0;
     self.receivedBytes = 0;
     self.options = options;
+    redirects = [[NSMutableArray alloc] init];
+    [redirects addObject:req.URL.absoluteString];
 
     NSString * path = [self.options valueForKey:CONFIG_FILE_PATH];
     NSString * ext = [self.options valueForKey:CONFIG_FILE_EXT];
@@ -242,6 +245,7 @@ NSOperationQueue *taskQueue;
                      @"taskId": taskId,
                      @"state": @"2",
                      @"headers": headers,
+                     @"redirects": redirects,
                      @"respType" : respType,
                      @"timeout" : @NO,
                      @"status": [NSString stringWithFormat:@"%d", statusCode ]
@@ -440,5 +444,10 @@ NSOperationQueue *taskQueue;
     }
 }
 
+- (void) URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task willPerformHTTPRedirection:(NSHTTPURLResponse *)response newRequest:(NSURLRequest *)request completionHandler:(void (^)(NSURLRequest * _Nullable))completionHandler
+{
+    [redirects addObject:[request.URL absoluteString]];
+    completionHandler(request);
+}
 
 @end