programSubscribe RPC 方法

订阅一个程序，以便在由该程序拥有的账户的 lamports 或数据发生更改时接收通知

params

stringrequired

以 base-58 编码字符串形式表示的 program_id 的 pubkey

objectoptional

包含以下字段的配置对象：

result

integer

订阅 ID（取消订阅时需要）

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "programSubscribe",
  "params": [
    "11111111111111111111111111111111",
    {
      "encoding": "base64",
      "filters": [{ "dataSize": 80 }]
    }
  ]
}

Response

{
  "jsonrpc": "2.0",
  "result": 24040,
  "id": 1
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "programSubscribe",
  "params": [
    "11111111111111111111111111111111",
    {
      "encoding": "base64",
      "filters": [{ "dataSize": 80 }]
    }
  ]
}

params

stringrequired

以 base-58 编码字符串形式表示的 program_id 的 pubkey

objectoptional

包含以下字段的配置对象：

result

Response

{
  "jsonrpc": "2.0",
  "result": 24040,
  "id": 1
}

integer

订阅 ID（取消订阅时需要）

通知格式

通知格式是一个单一的 program account 对象，如 getProgramAccounts RPC HTTP 方法中所示。

Base58 编码：

{
  "jsonrpc": "2.0",
  "method": "programNotification",
  "params": {
    "result": {
      "context": {
        "slot": 5208469
      },
      "value": {
        "pubkey": "H4vnBqifaSACnKa7acsxstsY1iV1bvJNxsCY7enrd1hq",
        "account": {
          "data": [
            "11116bv5nS2h3y12kD1yUKeMZvGcKLSjQgX6BeV7u1FrjeJcKfsHPXHRDEHrBesJhZyqnnq9qJeUuF7WHxiuLuL5twc38w2TXNLxnDbjmuR",
            "base58"
          ],
          "executable": false,
          "lamports": 33594,
          "owner": "11111111111111111111111111111111",
          "rentEpoch": 636,
          "space": 80
        }
      }
    },
    "subscription": 24040
  }
}

解析后的 JSON 编码：

{
  "jsonrpc": "2.0",
  "method": "programNotification",
  "params": {
    "result": {
      "context": {
        "slot": 5208469
      },
      "value": {
        "pubkey": "H4vnBqifaSACnKa7acsxstsY1iV1bvJNxsCY7enrd1hq",
        "account": {
          "data": {
            "program": "nonce",
            "parsed": {
              "type": "initialized",
              "info": {
                "authority": "Bbqg1M4YVVfbhEzwA9SpC9FhsaG83YMTYoR4a8oTDLX",
                "blockhash": "LUaQTmM7WbMRiATdMMHaRGakPtCkc2GHtH57STKXs6k",
                "feeCalculator": {
                  "lamportsPerSignature": 5000
                }
              }
            }
          },
          "executable": false,
          "lamports": 33594,
          "owner": "11111111111111111111111111111111",
          "rentEpoch": 636,
          "space": 80
        }
      }
    },
    "subscription": 24040
  }
}