## For user by channel

**Group:** Notification APIs

Use this when you need: **For user by channel**.

## Usage

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

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

const res = await client.fetchChannelNotificationsForUser({
  fid: 123, // FID of the user you you want to fetch notifications for. The response will respect this user's mutes and blocks.
  channelIds: "example", // Comma separated channel_ids (find list of all channels here - https://docs.neynar.com/reference/list-all-channels)
  // xNeynarExperimental: true,
  // limit: 123,
  // cursor: "example",
});
console.log(res);
```

## Parameters

| Parameter           | Type     | Required | Description                                                                                                 |
| ------------------- | -------- | -------- | ----------------------------------------------------------------------------------------------------------- |
| `fid`               | `number` | ✅       | FID of the user you you want to fetch notifications for. The response will respect this user's mutes and blocks. |
| `channelIds`        | `string` | ✅       | Comma separated channel_ids (find list of all channels here - [https://docs.neynar.com/reference/list-all-channels](https://docs.neynar.com/reference/list-all-channels)) |
| `xNeynarExperimental` | `boolean`| ❌      | -                                                                                                         |
| `limit`             | `number` | ❌       | -                                                                                                         |
| `cursor`            | `string` | ❌       | -                                                                                                         |

## Response

Returns a `RequestArgs` object.

## Error Handling

```javascript
try {
  const res = await client.fetchChannelNotificationsForUser({
    fid: 123,
    channelIds: "example"
  });
  // 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.