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Code sharing

If you are using the player, a common desire is to share the code with your Remotion Preview and/or server-side rendering. With the correct setup, you can write the component once and use it for previewing, displaying and rendering.

note

Remotion and your React app use a different Webpack config. Therefore, if you want to override your Webpack configuration, you need to override both the Remotion one and the React app one.

Setup​

Set up a React project with your preferred setup, such as Create React App or Next.JS.

When your project is setup, add the necessary Remotion dependencies:

bash
npm i remotion @remotion/cli @remotion/player
bash
npm i remotion @remotion/cli @remotion/player

Afterwards, create a subfolder for Remotion within your project and add three files: An index file, a Root.tsx file for your list of compositions, and a file with your composition. It could look like this:

diff
 └── src/
+  ├── remotion/
+  │   ├── index.ts
+  │   ├── MyComp.tsx
+  │   └── Root.tsx
   └── app/
       └── App.tsx
diff
 └── src/
+  ├── remotion/
+  │   ├── index.ts
+  │   ├── MyComp.tsx
+  │   └── Root.tsx
   └── app/
       └── App.tsx

Your composition (remotion/MyComp.tsx in the example) could look for example like this:

tsx
export const MyComp: React.FC<{ text: string }> = ({ text }) => {
  return <div>Hello {text}!</div>;
};
tsx
export const MyComp: React.FC<{ text: string }> = ({ text }) => {
  return <div>Hello {text}!</div>;
};

Your list of videos (remotion/Root.tsx in the example) could look like this:

tsx
import { Composition } from "remotion";
import { MyComp } from "./MyComp";
 
export const MyVideo = () => {
  return (
    <>
      <Composition
        component={MyComp}
        durationInFrames={120}
        width={1920}
        height={1080}
        fps={30}
        id="my-comp"
        defaultProps={{ text: "World" }}
      />
    </>
  );
};
tsx
import { Composition } from "remotion";
import { MyComp } from "./MyComp";
 
export const MyVideo = () => {
  return (
    <>
      <Composition
        component={MyComp}
        durationInFrames={120}
        width={1920}
        height={1080}
        fps={30}
        id="my-comp"
        defaultProps={{ text: "World" }}
      />
    </>
  );
};

Your index file (remotion/index.ts in the example) could look like this:

tsx
import { registerRoot } from "remotion";
import { MyVideo } from "./Video";
 
registerRoot(MyVideo);
tsx
import { registerRoot } from "remotion";
import { MyVideo } from "./Video";
 
registerRoot(MyVideo);
tip

Don't move these statements together into one file, as you might break hot reloading.

Using Remotion Preview​

You can open the Remotion Preview using the npx remotion preview command:

bash
npx remotion preview src/remotion/index.ts
bash
npx remotion preview src/remotion/index.ts

We recommend adding a new script into your package.json for easy access:

diff
  "scripts": {
+    "video": "remotion preview src/remotion/index.ts"
  }
diff
  "scripts": {
+    "video": "remotion preview src/remotion/index.ts"
  }

Adding <Player /> to your app​

Anywhere in your app, import the <Player /> component and your Composition component.

tsx
import { Player } from "@remotion/player";
import { MyComp } from "./remotion/MyComp";
 
export const App: React.FC = () => {
  return (
    <Player
      component={MyComp}
      inputProps={{ text: "World" }}
      durationInFrames={120}
      compositionWidth={1920}
      compositionHeight={1080}
      fps={30}
      style={{
        width: 1280,
        height: 720,
      }}
      controls
    />
  );
};
tsx
import { Player } from "@remotion/player";
import { MyComp } from "./remotion/MyComp";
 
export const App: React.FC = () => {
  return (
    <Player
      component={MyComp}
      inputProps={{ text: "World" }}
      durationInFrames={120}
      compositionWidth={1920}
      compositionHeight={1080}
      fps={30}
      style={{
        width: 1280,
        height: 720,
      }}
      controls
    />
  );
};
note

Pass your React component directly to the component prop. Don't pass the list of compositions.

If everything worked, you can now run your webapp and preview your video.

Creating a bundle for server-side rendering​

In any Node.JS context, you can call bundle() to bundle your video using Webpack and to server-side render the video. You need to add @remotion/bundler to your package.json for this.

server.tsx
ts
import path from "path";
import { bundle } from "@remotion/bundler";
 
const bundled = await bundle(
  path.join(process.cwd(), "src", "remotion", "index.ts")
);
server.tsx
ts
import path from "path";
import { bundle } from "@remotion/bundler";
 
const bundled = await bundle(
  path.join(process.cwd(), "src", "remotion", "index.ts")
);

See Server-side rendering for a full example.

tip

When using Lambda, you don't need this, you can use the CLI or deploySite() which will bundle the video for you.

See also​