diff --git a/README.md b/README.md
index bf78798..b3d2bb2 100644
--- a/README.md
+++ b/README.md
@@ -79,19 +79,19 @@ public class MainApplication extends Application implements ReactApplication {
 import * as CacheManager from 'react-native-http-cache';
 
 // invoke API directly when in need
-CacheManager.clear();
+CacheManager.clearCache();
 
 ```
 
 ## API Documentation
 
-#### clear()
+#### clearCache()
 
 Clear cache for all type.
 
 Return a promise which indicate the clear state.
 
-#### getSize()
+#### getCacheSize()
 
 Get cache size for all type.
 
diff --git a/android/src/main/java/cn/reactnative/httpcache/HttpCacheModule.java b/android/src/main/java/cn/reactnative/httpcache/HttpCacheModule.java
index fea1db7..1133717 100644
--- a/android/src/main/java/cn/reactnative/httpcache/HttpCacheModule.java
+++ b/android/src/main/java/cn/reactnative/httpcache/HttpCacheModule.java
@@ -66,7 +66,7 @@ private void updateCacheSize(DiskStorageCache cache) throws NoSuchMethodExceptio
 
     @ReactMethod
     public void getImageCacheSize(Promise promise){
-        FileCache cache1 = ImagePipelineFactory.getInstance().getMainDiskStorageCache();
+        FileCache cache1 = ImagePipelineFactory.getInstance().getMainFileCache();
         long size1 = cache1.getSize();
         if (size1 < 0){
             try {
@@ -77,7 +77,7 @@ public void getImageCacheSize(Promise promise){
             }
             size1 = cache1.getSize();
         }
-        FileCache cache2 = ImagePipelineFactory.getInstance().getSmallImageDiskStorageCache();
+        FileCache cache2 = ImagePipelineFactory.getInstance().getSmallImageFileCache();
         long size2 = cache2.getSize();
         if (size2 < 0){
             try {
diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..96312ff
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,8 @@
+declare module "react-native-http-cache" {
+    export function clearHttpCache(): Promise<void>;
+    export function getHttpCacheSize(): Promise<number>;
+    export function clearImageCache(): Promise<void>;
+    export function getImageCacheSize(): Promise<number>;
+    export function getCacheSize(): Promise<number>;
+    export function clearCache(): Promise<void>;
+}
diff --git a/ios/RCTHttpCache/RCTHttpCache.m b/ios/RCTHttpCache/RCTHttpCache.m
index b5fb64e..ac61222 100644
--- a/ios/RCTHttpCache/RCTHttpCache.m
+++ b/ios/RCTHttpCache/RCTHttpCache.m
@@ -7,9 +7,9 @@
 //
 
 #import "RCTHttpCache.h"
-//#import "RCTImageLoader.h"
+#import "React/RCTImageLoader.h"
 #import "RCTImageCache.h"
-//#import "RCTBridge.h"
+#import "React/RCTBridge.h"
 
 @implementation RCTHttpCache