method to print JSON messages as JSON instead of NSDictionary.

AFNetworkActivityLogger/AFNetworkActivityLogger.h

@@ -47,6 +47,11 @@ typedef NS_ENUM(NSUInteger, AFHTTPRequestLoggerLevel) {
  */
 @property (nonatomic, assign) AFHTTPRequestLoggerLevel level;
 
+/**
+ Enable JSON description on response values when having a JSON message.
+ */
+@property (assign) BOOL prettyJsonDescription;
+
 /**
  Omit requests which match the specified predicate, if provided. `nil` by default.
 

AFNetworkActivityLogger/AFNetworkActivityLogger.m

@@ -161,6 +161,10 @@ - (void)networkRequestDidFinish:(NSNotification *)notification {
     }
 
     NSTimeInterval elapsedTime = [[NSDate date] timeIntervalSinceDate:objc_getAssociatedObject(notification.object, AFNetworkRequestStartDate)];
+
+    if (self.prettyJsonDescription) {
+        responseObject = [self jsonDescriptionForResponseObject:responseObject];
+    }
 
     if (error) {
         switch (self.level) {
@@ -186,4 +190,22 @@ - (void)networkRequestDidFinish:(NSNotification *)notification {
     }
 }
 
+- (NSString *)jsonDescriptionForResponseObject:(id)responseObject {
+    NSError * err;
+    NSData *jsonData;
+
+    if ([responseObject isKindOfClass:[NSDictionary class]]) {
+        jsonData = [NSJSONSerialization dataWithJSONObject:responseObject options:NSJSONWritingPrettyPrinted error:&err];
+
+        if (err) {
+            return responseObject;
+        } else {
+            return [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
+        }
+    } else {
+        return responseObject;
+    }
+}
+
+
 @end