Supported Parameters:

• filter: | - filter criteria for the logs to receive results by account type; currently supported:
  * `{ "mentions": [ ] } - subscribe to all transactions that mention the provided Pubkey (as base-58 encoded string), only accepts one account address
• - (optional) Configuration object containing the following optional fields:
  * (optional) Commitment

  Unsupported Parameters:

  • filter: | - filter criteria for the logs to receive results by account type; currently supported:
    "all" - subscribe to all transactions except for simple vote transactions
    "allWithVotes" - subscribe to all transactions including simple vote transactions
    * `{ "mentions": [ ] } - subscribe to all transactions that mention the provided Pubkey (as base-58 encoded string)

    Results:

    • <integer> - subscription id (needed to unsubscribe)

    Notification Format

    The notification will be an RpcResponse JSON object with value equal to:

    • signature: <string> - The transaction signature base58 encoded.
      • err: <object | null> - Error if transaction failed, null if transaction succeeded
      • logs: <array | null> - Array of log messages the transaction instructions output during execution, null if simulation failed before the transaction was able to execute (for example due to an invalid blockhash or signature verification failure)

    Example:

    Request

    Shell

    {
      "jsonrpc": "2.0",
      "id": 1,
      "method": "logsSubscribe",
      "params": [
        {
          "mentions": [ "11111111111111111111111111111111" ]
        },
        {
          "commitment": "finalized"
        }
      ]
    }
    {
      "jsonrpc": "2.0",
      "id": 1,
      "method": "logsSubscribe",
      "params": [ "all" ]
    }
    

    Response

    JSON

    { "jsonrpc": "2.0", "result": 24040, "id": 1 }
    
    // notification
    {
      "jsonrpc": "2.0",
      "method": "logsNotification",
      "params": {
        "result": {
          "context": {
            "slot": 5208469
          },
          "value": {
            "signature": "5h6xBEauJ3PK6SWCZ1PGjBvj8vDdWG3KpwATGy1ARAXFSDwt8GFXM7W5Ncn16wmqokgpiKRLuS83KUxyZyv2sUYv",
            "err": null,
            "logs": [
              "BPF program 83astBRguLMdt2h5U1Tpdq5tjFoJ6noeGwaY3mDLVcri success"
            ]
          }
        },
        "subscription": 24040
      }
    }