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Data API

Fetch block and transaction related data
The data API methods can be used to fetch block, transaction, and other related data from the chain. The available methods have been classified based on the endpoints and listed below.
Network
Fetch the list of available networks
Method: POST
URL: /network/list
Sample Request:
{
  "metadata": {}
}
Sample Response:
{
  "network_identifiers": [
    {
      "blockchain": "ont",
      "network": "mainnet"
    }
  ]
}
Fetch network options
Method: POST
URL: /network/options
Sample Request:
{
  "network_identifier": {
    "blockchain": "ont",
    "network": "mainnet"
  }
}
Sample Response:
{
  "version": {
        "rosetta_version": "1.4.0",
        "node_version": "1.11.0"
  },
  "allow": {
    "operation_statuses": [
      {
        "status": "SUCCESS",
        "successful": true
      },
      {
        "status": "FAILED",
        "successful": false
      }
    ],
    "operation_types": ["transfer"],
    "errors": [
      {
        "code": 400,
        "message": "network identifier is not supported",
        "retriable": false
      },
      {
        "code": 401,
        "message": "block identifier is empty",
        "retriable": false
      },
      {
        "code": 402,
        "message": "block index is invalid",
        "retriable": false
      },
      {
        "code": 403,
        "message": "get block failed",
        "retriable": true
      },
      {
        "code": 404,
        "message": "block hash is invalid",
        "retriable": false
      },
      {
        "code": 405,
        "message": "get transaction failed",
        "retriable": true
      },
      {
        "code": 406,
        "message": "transaction hash is invalid",
        "retriable": false
      },
      {
        "code": 407,
        "message": "commit transaction failed",
        "retriable": false
      },
      {
        "code": 408,
        "message": "tx hash is invalid",
        "retriable": false
      },
      {
        "code": 409,
        "message": "block is not exist",
        "retriable": false
      },
      {
        "code": 500,
        "message": "service not realize",
        "retriable": false
      },
      {
        "code": 501,
        "message": "addr is invalid",
        "retriable": true
      },
      {
        "code": 502,
        "message": "get balance error",
        "retriable": true
      },
      {
        "code": 503,
        "message": "parse int error",
        "retriable": true
      },
      {
        "code": 504,
        "message": "json marshal failed",
        "retriable": false
      },
      {
        "code": 505,
        "message": "parse tx payload failed",
        "retriable": false
      },
      {
        "code": 506,
        "message": "currency not config",
        "retriable": false
      },
      {
        "code": 507,
        "message": "params error",
        "retriable": true
      },
      {
        "code": 508,
        "message": "contract addr invalid",
        "retriable": true
      },
      {
        "code": 509,
        "message": "preExecute contract failed",
        "retriable": false
      },
      {
        "code": 510,
        "message": "query balance failed",
        "retriable": true
      }
    ]
  }
}
Fetch the network status
Method: POST
URL: /network/status
Sample Request:
{
  "network_identifier": {
    "blockchain": "ont",
    "network": "mainnet"
  }
}
Sample Response:
{
  "current_block_identifier": {
    "index": 4789126,
    "hash": "76fcf0fbd5e979721fe52e472ac79eb26f4bc502c371508574c0e03386be20e6"
  },
  "current_block_timestamp": 1560312815000,
  "genesis_block_identifier": {
    "index": 0,
    "hash": "1b8fa7f242d0eeb4395f89cbb59e4c29634047e33245c4914306e78a88e14ce5"
  },
  "peers": [
    {
      "peer_id": "000000000000000000000000b41fe9ceaaaa4d7b",
      "metadata": {
        "address": "40.113.237.243:20338",
        "height": 8454242
      }
    },
    {
      "peer_id": "000000000000000000000000a4f0c524d8efd6a8",
      "metadata": {
        "address": "139.219.141.104:20338",
        "height": 8454242
      }
    },
    {
      "peer_id": "0000000000000000000000008e6528f4659f3112",
      "metadata": {
        "address": "50.18.219.74:20338",
        "height": 8454242
      }
    }
  ]
}
Account
Fetch account balance
Method: POST
URL: /account/balance
Sample Request:
{
  "network_identifier": {
    "blockchain": "ont",
    "network": "mainnet"
  },
  "account_identifier": {
    "address": "AFmseVrdL9f9oyCzZefL9tG6UbviEH9ugK",
    "metadata": {}
  },
  "block_identifier": {
    "index": 310
  }
}
Sample Response:
{
  "block_identifier": {
    "index": 310,
    "hash": "11405500403779cff364803bbd7fe4dc74ba9119015fd79473c188b727769c52"
  },
  "balances": [
    {
      "value": "14700000000000000",
      "currency": {
        "symbol": "ONT",
        "decimals": 9,
        "metadata": {
          "ContractAddress": "0100000000000000000000000000000000000000",
          "TokenType": "Governance Token"
        }
      }
    },
    {
      "value": "1750000140000000000000",
      "currency": {
        "symbol": "ONG",
        "decimals": 18,
        "metadata": {
          "ContractAddress": "0200000000000000000000000000000000000000",
          "TokenType": "Utility Token"
        }
      }
    }
  ]
}
Block
Fetch block details
Method: POST
URL: /block
Sample Request:
{
  "network_identifier": {
    "blockchain": "ont",
    "network": "mainnet"
  },
  "block_identifier": {
    "index": 54
  }
}
{
  "block": {
    "block_identifier": {
      "index": 54,
      "hash": "790ea8942e5722c75ba638312caa8c1380c41da4c145d6493ae510eb6017c5f3"
    },
    "parent_block_identifier": {
      "index": 53,
      "hash": "2b52c7fcdbdcd362211e1646fa6351c8f6fd4cbfa520fe7857133e59061ff348"
    },
    "timestamp": 1530389834000,
    "transactions": [
      {
        "transaction_identifier": {
          "hash": "20247d9df50d830b8978a5c49313a6f8a118fd5bb9c2950e3c7f95f5ac6410f6"
        },
        "operations": [
          {
            "operation_identifier": {
              "index": 0
            },
            "type": "transfer",
            "status": "SUCCESS",
            "account": {
              "address": "AJMFNZL5jGjZJEhBrJfVLHJeJ3KwiczJ6B"
            },
            "amount": {
              "value": "-1000000000000000000",
              "currency": {
                "symbol": "ONT",
                "decimals": 9,
                "metadata": {
                  "ContractAddress": "0100000000000000000000000000000000000000",
                  "TokenType": "Governance Token"
                }
              }
            }
          },
          {
            "operation_identifier": {
              "index": 1
            },
            "related_operations": [
              {
                "index": 0
              }
            ],
            "type": "transfer",
            "status": "SUCCESS",
            "account": {
              "address": "AWyEMxiLUVr5MeVJe3Fw5Xsij7iZUmfYyk"
            },
            "amount": {
              "value": "1000000000000000000",
              "currency": {
                "symbol": "ONT",
                "decimals": 9,
                "metadata": {
                  "ContractAddress": "0100000000000000000000000000000000000000",
                  "TokenType": "Governance Token"
                }
              }
            }
          }
        ]
      }
    ]
  }
}
Please note that the transaction record consists of two operations, i.e. the from operation, and the to operation. The transaction amount for the from operation is negative, while the amount for the to operation is equal and positive.
The currency field contains token details. The two tokens are denoted in the following manner:
ONT Parameters
{
    "symbol": "ONT",
    "decimals": 9,
    "metadata": {
        "ContractAddress": "0100000000000000000000000000000000000000",
        "TokenType": "Governance Token"
        }
}
ONG Parameters
{
    "symbol": "ONG",
    "decimals": 18,
    "metadata": {
        "ContractAddress": "0200000000000000000000000000000000000000",
        "TokenType": "Utility Token"
        }
}
Fetch transaction information from a block
Method: POST
URL: /block/transaction
Sample Request:
{
  "network_identifier": {
    "blockchain": "ont",
    "network": "mainnet"
  },
  "block_identifier": {
    "index": 54,
    "hash": "790ea8942e5722c75ba638312caa8c1380c41da4c145d6493ae510eb6017c5f3"
  },
  "transaction_identifier": {
    "hash": "20247d9df50d830b8978a5c49313a6f8a118fd5bb9c2950e3c7f95f5ac6410f6"
  }
}
Sample Response:
{
  "transaction": {
    "transaction_identifier": {
      "hash": "20247d9df50d830b8978a5c49313a6f8a118fd5bb9c2950e3c7f95f5ac6410f6"
    },
    "operations": [
      {
        "operation_identifier": {
          "index": 0
        },
        "type": "transfer",
        "status": "SUCCESS",
        "account": {
          "address": "AJMFNZL5jGjZJEhBrJfVLHJeJ3KwiczJ6B"
        },
        "amount": {
          "value": "-1000000000000000000",
          "currency": {
            "symbol": "ONT",
            "decimals": 9,
            "metadata": {
              "ContractAddress": "0100000000000000000000000000000000000000",
              "TokenType": "Governance Token"
            }
          }
        }
      },
      {
        "operation_identifier": {
          "index": 1
        },
        "related_operations": [
          {
            "index": 0
          }
        ],
        "type": "transfer",
        "status": "SUCCESS",
        "account": {
          "address": "AWyEMxiLUVr5MeVJe3Fw5Xsij7iZUmfYyk"
        },
        "amount": {
          "value": "1000000000000000000",
          "currency": {
            "symbol": "ONT",
            "decimals": 9,
            "metadata": {
              "ContractAddress": "0100000000000000000000000000000000000000",
              "TokenType": "Governance Token"
            }
          }
        }
      }
    ]
  }
}
Mempool
Fetch all mempool transactions
Method: POST
URL: /mempool
Sample Request:
{
  "network_identifier": {
    "blockchain": "ont",
    "network": "mainnet"
  }
}
Sample Response:
{
  "transaction_identifiers": [
    {
      "hash": "<tx hash>"
    }
  ]
}
Fetch details for a mempool transaction
Method: POST
URL: /mempool/transaction
Sample Request:
{
  "network_identifier": {
    "blockchain": "ont",
    "network": "mainnet"
  },
  "transaction_identifier": {
    "hash": "20247d9df50d830b8978a5c49313a6f8a118fd5bb9c2950e3c7f95f5ac6410f6"
  }
}
Sample Response:
{
  "transaction": {
    "transaction_identifier": {
      "hash": "20247d9df50d830b8978a5c49313a6f8a118fd5bb9c2950e3c7f95f5ac6410f6"
    },
    "operations": [
      {
        "operation_identifier": {
          "index": 0
        },
        "type": "transfer",
        "status": "SUCCESS",
        "account": {
          "address": "AJMFNZL5jGjZJEhBrJfVLHJeJ3KwiczJ6B"
        },
        "amount": {
          "value": "-1000000000000000000",
          "currency": {
            "symbol": "ONT",
            "decimals": 9,
            "metadata": {
              "ContractAddress": "0100000000000000000000000000000000000000",
              "TokenType": "Governance Token"
            }
          }
        }
      },
      {
        "operation_identifier": {
          "index": 1
        },
        "related_operations": [
          {
            "index": 0
          }
        ],
        "type": "transfer",
        "status": "SUCCESS",
        "account": {
          "address": "AWyEMxiLUVr5MeVJe3Fw5Xsij7iZUmfYyk"
        },
        "amount": {
          "value": "1000000000000000000",
          "currency": {
            "symbol": "ONT",
            "decimals": 9,
            "metadata": {
              "ContractAddress": "0100000000000000000000000000000000000000",
              "TokenType": "Governance Token"
            }
          }
        }
      }
    ]
  }
}
Last modified 2yr ago