Function subscribeResult

subscribeResult(
    connection: Connection,
    tx: string,
    onResult: (value: ResultValue) => void,
    onError?: (err: any) => void,
    onClose?: () => void,
): void
Opens a WebSocket connection and subscribes to the result of a transaction via the custom xandeumResultSubscribe method.

This is useful for receiving asynchronous results tied to an on-chain operation, such as file creation, modification, or deletion.

The subscription sends a JSON-RPC request with:
- method: "xandeumResultSubscribe"
- params: [txId, { commitment: "finalized" }]
The WebSocket listens for result messages and invokes the onResult callback if a valid result with fsid, status, or data is received.
Parameters
- connection: Connection
  The solana web3 connection with Xandeum-compatible JSON-RPC endpoint (e.g., 'https://api.devnet.solana.com').
- tx: string
  The transaction ID you want to listen for results from.
- onResult: (value: ResultValue) => void
  Callback to handle incoming result messages. Triggered when a valid response is received.
- OptionalonError: (err: any) => void
  (Optional) Callback triggered if a WebSocket error occurs.
- OptionalonClose: () => void
  (Optional) Callback triggered when the WebSocket connection closes.
Returns void
- Defined in webSocket.ts:40