accountSubscribe

Subscribe to an account to receive notifications when the lamports or data for a given account public key changes

请求参数

• <string> - account Pubkey, as base-58 encoded string
• <object> - (optional) Configuration object containing the following optional fields:
  • <object> - (optional) Commitment
  • encoding: <string> - encoding for Account data, either "base58" (slow), "base64", "base64+zstd" or "jsonParsed". "jsonParsed" encoding attempts to use program-specific state parsers to return more human-readable and explicit account state data. If "jsonParsed" is requested but a parser cannot be found, the field falls back to binary encoding, detectable when the data field is type .

响应结果

• <number> - Subscription id (needed to unsubscribe)

示例代码

请求：

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "accountSubscribe",
  "params": [
    "CM78CPUeXjn8o3yroDHxUtKsZZgoy4GPkPPXfouKNH12",
    {
      "encoding": "base64",
      "commitment": "finalized"
    }
  ]
}
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "accountSubscribe",
  "params": [
    "CM78CPUeXjn8o3yroDHxUtKsZZgoy4GPkPPXfouKNH12",
    {
      "encoding": "jsonParsed"
    }
  ]
}

响应：

{"jsonrpc": "2.0","result": 23784,"id": 1}

Notification Format:# Base58 encoding:

{
  "jsonrpc": "2.0",
  "method": "accountNotification",
  "params": {
    "result": {
      "context": {
        "slot": 5199307
      },
      "value": {
        "data": ["11116bv5nS2h3y12kD1yUKeMZvGcKLSjQgX6BeV7u1FrjeJcKfsHPXHRDEHrBesJhZyqnnq9qJeUuF7WHxiuLuL5twc38w2TXNLxnDbjmuR", "base58"],
        "executable": false,
        "lamports": 33594,
        "owner": "11111111111111111111111111111111",
        "rentEpoch": 635
      }
    },
    "subscription": 23784
  }
}

Parsed-JSON encoding:

{
  "jsonrpc": "2.0",
  "method": "accountNotification",
  "params": {
    "result": {
      "context": {
        "slot": 5199307
      },
      "value": {
        "data": {
           "program": "nonce",
           "parsed": {
              "type": "initialized",
              "info": {
                 "authority": "Bbqg1M4YVVfbhEzwA9SpC9FhsaG83YMTYoR4a8oTDLX",
                 "blockhash": "LUaQTmM7WbMRiATdMMHaRGakPtCkc2GHtH57STKXs6k",
                 "feeCalculator": {
                    "lamportsPerSignature": 5000
                 }
              }
           }
        },
        "executable": false,
        "lamports": 33594,
        "owner": "11111111111111111111111111111111",
        "rentEpoch": 635
      }
    },
    "subscription": 23784
  }
}