## Process Subscription Upgrade with Credit

**Group:** Subscription APIs

Use this when you need: **Process subscription upgrade with credit**.

## Usage

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

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

const res = await client.upgrade({
  upgradeRequest: "value", // required
});
console.log(res);
```

## Parameters

| Parameter       | Type             | Required | Description     |
|------------------|------------------|----------|------------------|
| `upgradeRequest`  | `UpgradeRequest`  | ✅       | -                |

## Response

Returns a `RequestArgs` object.

## Error Handling

```javascript
try {
  const res = await client.upgrade({
    upgradeRequest: "value"
  });
  // 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.