> ## Documentation Index
> Fetch the complete documentation index at: https://docs.neynar.com/llms.txt
> Use this file to discover all available pages before exploring further.

# fetchCastReactions

Reactions for cast

> **Group:** Reaction APIs

Use this when you need: **Reactions for cast**.

## Usage

```ts theme={"system"}
import { NeynarAPIClient, Configuration } from "@neynar/nodejs-sdk";

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

const res = await client.fetchCastReactions({
  hash: "example", // required
  types: [], // Customize which reaction types the request should search for. This is a comma-separated string that can include the following values: \'likes\' and \'recasts\'. By default api returns both. To select multiple types, use a comma-separated list of these values.
  // viewerFid: 123, 
  // limit: 123, 
  // cursor: "example", 
});
console.log(res);
```

## Parameters

| Parameter   | Type                                 | Required | Description                                                                                                                                                                                                                                                                         |
| ----------- | ------------------------------------ | :------: | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `hash`      | `string`                             |     ✅    | -                                                                                                                                                                                                                                                                                   |
| `types`     | `Array<FetchCastReactionsTypesEnum>` |     ✅    | Customize which reaction types the request should search for. This is a comma-separated string that can include the following values: \&#39;likes\&#39; and \&#39;recasts\&#39;. By default api returns both. To select multiple types, use a comma-separated list of these values. |
| `viewerFid` | `number`                             |     ❌    | -                                                                                                                                                                                                                                                                                   |
| `limit`     | `number`                             |     ❌    | -                                                                                                                                                                                                                                                                                   |
| `cursor`    | `string`                             |     ❌    | -                                                                                                                                                                                                                                                                                   |

## Response

Returns a `RequestArgs` object.

## Error Handling

```ts theme={"system"}
try {
  const res = await client.fetchCastReactions({
    hash: "example",
    types: []
  });
  // use res
} catch (err) {
  // Axios/HTTP errors, invalid params, auth issues, etc.
  console.error(err);
}
```

## Related API Reference

📖 **API Reference:** [fetchCastReactions](/reference/fetch-cast-reactions)

For detailed information about the HTTP endpoint, request/response schemas, and additional examples, see the complete API documentation.

## 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.