diff --git a/README.md b/README.md
index 3842d94..c562a3d 100644
--- a/README.md
+++ b/README.md
@@ -19,10 +19,11 @@ resolve: {
 ```
 
 If you are using [Expo](https://docs.expo.dev/guides/customizing-webpack/), you can simply do
+
 ```js
 const createExpoWebpackConfigAsync = require('@expo/webpack-config');
 
-module.exports = async function(env, argv) {
+module.exports = async function (env, argv) {
   const config = await createExpoWebpackConfigAsync(env, argv);
 
   config.resolve.alias['lottie-react-native'] = 'react-native-web-lottie';
diff --git a/package.json b/package.json
index 9a5a6a4..23cabb9 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "1.4.4",
   "description": "React Native for Web implementation of Lottie",
   "main": "dist/index.js",
+  "types": "src/index.d.ts",
   "main-es": "src/index.js",
   "repository": {
     "type": "git",
@@ -14,29 +15,17 @@
     "url": "https://github.com/Minishlink"
   },
   "license": "MIT",
-  "keywords": [
-    "react-native",
-    "react-native-web",
-    "lottie-react-native"
-  ],
+  "keywords": ["react-native", "react-native-web", "lottie-react-native"],
   "scripts": {
     "prepublish": "yarn build",
     "build": "mkdir -p dist && babel src --out-dir dist --copy-files",
     "test": "prettier --check ."
   },
   "babel": {
-    "presets": [
-      "module:metro-react-native-babel-preset"
-    ],
-    "plugins": [
-      "react-native-web"
-    ]
+    "presets": ["module:metro-react-native-babel-preset"],
+    "plugins": ["react-native-web"]
   },
-  "files": [
-    "src",
-    "dist",
-    "yarn.lock"
-  ],
+  "files": ["src", "dist", "yarn.lock"],
   "devDependencies": {
     "@babel/cli": "^7.2.3",
     "@babel/core": "^7.2.2",
diff --git a/src/index.d.ts b/src/index.d.ts
new file mode 100644
index 0000000..2c5d57c
--- /dev/null
+++ b/src/index.d.ts
@@ -0,0 +1,102 @@
+declare module 'react-native-web-lottie' {
+  import { Animated, StyleProp, ViewStyle } from 'react-native';
+  /**
+   * Serialized animation as generated from After Effects
+   */
+  export interface AnimationObject {
+    v: string;
+    fr: number;
+    ip: number;
+    op: number;
+    w: number;
+    h: number;
+    nm?: string;
+    ddd?: number;
+    assets: any[];
+    layers: any[];
+    markers?: any[];
+  }
+
+  export interface BaseRendererConfig {
+    imagePreserveAspectRatio?: string;
+    className?: string;
+  }
+
+  export interface FilterSizeConfig {
+    width: string;
+    height: string;
+    x: string;
+    y: string;
+  }
+
+  export interface SVGRendererConfig extends BaseRendererConfig {
+    title?: string;
+    description?: string;
+    preserveAspectRatio?: string;
+    progressiveLoad?: boolean;
+    hideOnTransparent?: boolean;
+    viewBoxOnly?: boolean;
+    viewBoxSize?: string;
+    focusable?: boolean;
+    filterSize?: FilterSizeConfig;
+  }
+
+  export interface AnimatedLottieViewProps {
+    /**
+     * The source of animation. Can be referenced as a local asset by a string, or remotely
+     * with an object with a `uri` property, or it can be an actual JS object of an
+     * animation, obtained (for example) with something like
+     * `require('../path/to/animation.json')`
+     */
+    source: string | AnimationObject | { uri: string };
+
+    progress?: Animated.Value;
+
+    /**
+     * A boolean flag indicating whether or not the animation should loop.
+     */
+    loop?: boolean;
+
+    /**
+     * Style attributes for the view, as expected in a standard `View`:
+     * http://facebook.github.io/react-native/releases/0.39/docs/view.html#style
+     * CAVEAT: border styling is not supported.
+     */
+    style?: StyleProp<ViewStyle>;
+
+    /**
+     * A boolean flag indicating whether or not the animation should start automatically when
+     * mounted. This only affects the imperative API.
+     */
+    autoPlay?: boolean;
+
+    /**
+     * The speed the animation will progress. This only affects the imperative API. The
+     * default value is 1.
+     */
+    speed?: number;
+
+    /**
+     * Check out lottie docs : https://airbnb.io/lottie/#/web?id=other-loading-options
+     */
+    rendererSettings?: SVGRendererConfig;
+
+    /**
+     * A callback function which will be called when animation is finished. Note that this
+     * callback will be called only when `loop` is set to false.
+     */
+    onAnimationFinish?: (isCancelled: boolean) => void;
+
+    /**
+     * A string to identify the component during testing
+     */
+    testID?: string;
+  }
+
+  class AnimatedLottieView extends React.Component<AnimatedLottieViewProps, {}> {
+    play(startFrame?: number, endFrame?: number): void;
+    reset(): void;
+  }
+
+  export default AnimatedLottieView;
+}
diff --git a/src/index.js b/src/index.js
index da0e363..c3e581b 100644
--- a/src/index.js
+++ b/src/index.js
@@ -25,9 +25,16 @@ class Animation extends PureComponent {
   }
 
   UNSAFE_componentWillReceiveProps(nextProps) {
-    if (this.props.source && nextProps.source && this.props.source.nm !== nextProps.source.nm) {
+    if (
+      this.props.source &&
+      nextProps.source &&
+      (this.props.source.nm !== nextProps.source.nm || this.props.source.uri !== nextProps.source.uri)
+    ) {
       this.loadAnimation(nextProps);
     }
+    if (this.props.speed !== nextProps.speed) {
+      this.anim.setSpeed(nextProps.speed);
+    }
   }
 
   loadAnimation = (props) => {
@@ -37,13 +44,19 @@ class Animation extends PureComponent {
 
     this.anim = lottie.loadAnimation({
       container: this.animationDOMNode,
-      animationData: props.source,
       renderer: 'svg',
       loop: props.loop || false,
       autoplay: props.autoPlay,
       rendererSettings: props.rendererSettings || {},
+      ...(props.source.uri && typeof props.source.uri === 'string'
+        ? { path: props.source.uri }
+        : { animationData: props.source }),
     });
 
+    if (props.speed !== undefined) {
+      this.anim.setSpeed(props.speed);
+    }
+
     if (props.onAnimationFinish) {
       this.anim.addEventListener('complete', props.onAnimationFinish);
     }