20.2.1

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测试链

测试链的水龙头的地址为：https://faucet.citahub.com/faucet，可以在这里领取 Testnet 的代币。

该测试链由 4 个节点组成，域名访问如下：

https://testnet.citahub.com

查询测试链的信息

  • 返回值

    • chainId - Integer - version < 1 时的 chain_id
    • chainIdV1 - Quantity - version > 1 时的 chain_id 用来防止重放攻击，不同链的 chainId 建议设置为不同值
    • chainName - String - 链名称
    • operator - String - 链的运营者
    • genesisTimestamp - Integer - 创世块时间戳
    • validators - [Data20] - 验证者地址集合
    • blockInterval - Integer - 出块间隔
    • tokenName - String - Token 名称
    • tokenSymbol - String - Token 标识
    • tokenAvatar - String - Token 标志
    • version - Integer - 链版本
    • economicalModel - EconomicalModel - 链经济模型

示例：

Request:

curl -sS -X POST --data '{"jsonrpc":"2.0","method":"getMetaData","params":["latest"],"id":1}' https://testnet.citahub.com | jq

Result:

{
   "id": 1,
    "jsonrpc": "2.0",
    "result": {
      "blockInterval": 3000,
      "chainId": 0,
      "chainIdV1": "0x1",
      "chainName": "test-chain",
      "economicalModel": 1,
      "genesisTimestamp": 1541058686340,
      "operator": "Rivtower",
      "tokenAvatar": "https://cdn.citahub.com/icon_cita.png",
      "tokenName": "CITA Test Token",
      "tokenSymbol": "CTT",
      "validators": [
        "0xc489d5cb6f497e4708cc8c3805473b9528f83c7a",
        "0x497c68f02bbe335cc879356af120371ebf6cbc29",
        "0x6fbb4c8bb76ace631d634545fe39cbee979dd08e",
        "0x3c0f681e13f18b51d5350823eae45cb502231cf4"
      ],
      "version": 2,
      "website": "https://www.citahub.com"
    }
}

查看测试链创世块信息

Request:

curl -sS -X POST --data '{"jsonrpc":"2.0","method":"getBlockByNumber","params":["0",true],"id":1}' https://testnet.citahub.com | jq

Result:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "version": 0,
    "hash": "0x577da8e94c9f256adef23ce144bec5aa95d34375ab5c36610b6975cbb54d4196",
    "header": {
      "timestamp": 1541058686340,
      "prevHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
      "number": "0x0",
      "stateRoot": "0x522a291019849d5d3b58dec1d2df7f4808cc9a0b7ab4a987290f43b1104eb4f1",
      "transactionsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
      "receiptsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
      "quotaUsed": "0x0",
      "proof": null,
      "proposer": "0x0000000000000000000000000000000000000000"
    },
    "body": {
      "transactions": []
    }
  }
}

查看测试链当前块高

  • 返回值：十六进行表示的块高。

Request:

curl -sS -X POST --data '{"jsonrpc":"2.0","method":"blockNumber","params":[],"id":1}' https://testnet.citahub.com | jq

Result:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "0xd8c2dd"
}

查看测试链使用的 CITA 版本号

Request:

curl -sS -X POST --data '{"jsonrpc":"2.0","method":"getVersion","params":[],"id":1}' https://testnet.citahub.com | jq

Result:

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "softwareVersion": "v20.2.0"
  }
}

如需查看更新测试链信息，请参考CITA JSON-RPC API。

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