## 10 most popular casts

**Group:** Feed APIs

Use this when you need: **10 most popular casts**.

## Usage

```javascript
import { NeynarAPIClient, Configuration } from "@neynar/nodejs-sdk";

const client = new NeynarAPIClient(
  new Configuration({ apiKey: "YOUR_NEYNAR_API_KEY" })
);

const res = await client.fetchPopularCastsByUser({
  fid: 123, // FID of user whose feed you want to create
  // viewerFid: 123,
});
console.log(res);
```

## Parameters

| Parameter   | Type     | Required | Description                                               |
| ----------- | -------- | -------- | --------------------------------------------------------- |
| `fid`      | `number` | ✅       | FID of user whose feed you want to create               |
| `viewerFid`| `number` | ❌       | -                                                         |

## Response

Returns a `RequestArgs` object.

## Error Handling

```javascript
try {
  const res = await client.fetchPopularCastsByUser({
    fid: 123
  });
  // use res
} catch (err) {
  // Axios/HTTP errors, invalid params, auth issues, etc.
  console.error(err);
}
```

## Tips

- Provide a **viewerFid** when supported to respect mutes/blocks and include `viewer_context`.
- Keep requests scoped (e.g., use `limit`) to improve latency.
- Cache results where sensible.