Json rpc коды ошибок

According to specification, error code should be in response message. Http
server should respond with status code 200, even if there is an error.

JSON-RPC Errors¶

Note

Error is an object which represent any kind of erros in JSON-RPC specification. It is not python Exception and could not be raised.

Errors (Error messages) are members of JSONRPCError class. Any custom error messages should be inherited from it.
The class is responsible for specification following and creates response string based on error’s attributes.

JSON-RPC has several predefined errors, each of them has reserved code, which should not be used for custom errors.

Code Message Meaning
-32700 Parse error Invalid JSON was received by the server.An error occurred on the server while parsing the JSON text.
-32600 Invalid Request The JSON sent is not a valid Request object.
-32601 Method not found The method does not exist / is not available.
-32602 Invalid params Invalid method parameter(s).
-32603 Internal error Internal JSON-RPC error.
-32000 to -32099 Server error Reserved for implementation-defined server-errors.

JSONRPCResponseManager handles common errors. If you do not plan to implement own manager, you do not need to write custom errors. To controll error messages and codes, json-rpc has exceptions, covered in next paragraph.

JSON-RPC Exceptions¶

Note

Exception here a json-rpc library object and not related to specification. They are inherited from python Exception and could be raised.

JSON-RPC manager handles dispatcher method’s exceptions, anything you raise would be catched.
There are two ways to generate error message in manager:

First is to simply raise exception in your method. Manager will catch it and return JSONRPCServerError message with description. Advantage of this mehtod is that everything is already implemented, just add method to dispatcher and manager will do the job.

If you need custom message code or error management, you might need to raise exception, inherited from JSONRPCDispatchException. Make sure, your exception class has error code.

New in version 1.9.0: Fix Invalid params error false generated if method raises TypeError. Now in this case manager introspects the code and returns proper exception.

Источник

«code»:-32602, // this is the reference error code

«message»:»invalid argument 0: json: cannot unmarshal hex string of odd length into Go value of type common.Address»

A typical error message returned in JSON contains the following key fields.

  1. 1.

    CODE : The JSON-RPC error code, see below for extended description.

  2. 2.

    MESSAGE : An explanation of what went wrong, and how you can correct it.

Code

Return Message

Description

-32700

Parse error

Invalid JSON was received by the server. An error occurred on the server while parsing the JSON text.

-32600

Invalid Request

The JSON sent is not a valid Request object.

-32601

Method not found

The method does not exist / is not available.

-32602

Invalid params

Invalid method parameter(s).

-32603

Internal error

Internal JSON-RPC error.
Источник
title

JSON-RPC v3

Goloop JSON-RPC API v3

Introduction

This document explains JSON-RPC APIs (version 3) available to interact with Goloop nodes.

The API end point is http://<host>:<port>/api/v3/<channel>

If there is one channel or there is a default channel then you may skip channel name. Channel name of the chain will be set on configuring the channel. It may use hexadecimal string of NID if it’s not specified (ex: a34 for 0xa34). For ICON networks, they uses icon_dex as channel name.

Value Types

Basically, every VALUE in JSON-RPC message is string.
Below table shows the most common «VALUE types».

VALUE type Description Example
T_ADDR_EOA «hx» + 40 digit HEX string hxbe258ceb872e08851f1f59694dac2558708ece11
T_ADDR_SCORE «cx» + 40 digit HEX string cxb0776ee37f5b45bfaea8cff1d8232fbb6122ec32
T_HASH «0x» + 64 digit HEX string 0xc71303ef8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238
T_INT «0x» + lowercase HEX string. No zero padding. 0xa
T_BOOL «0x1» for ‘true’, «0x0» for ‘false’ 0x1
T_BIN_DATA «0x» + lowercase HEX string. Length must be even. 0x34b2
T_SIG base64 encoded string VAia7YZ2Ji6igKWzjR2YsGa2m53nKPrfK7uXYW78QLE+ATehAVZPC40szvAiA6NEU5gCYB4c4qaQzqDh2ugcHgA=
T_DATA_TYPE Type of data call, deploy or message
T_STRING normal string test, hello, …

Failure Code

Following is a list of failure codes.

Name Value Description
UNKNOWN_FAILURE 1 An uncategorized internal system error occurred.
CONTRACT_NOT_FOUND 2 There is no valid contract on the target address.
METHOD_NOT_FOUND 3 The specified method does not exist or is not usable.
METHOD_NOT_PAYABLE 4 The specified method is not payable.
ILLEGAL_FORMAT 5 An Illegal method parameter or decorator has been declared.
INVALID_PARAMETER 6 An invalid parameter has been passed to a method.
INVALID_INSTANCE 7 An object has not been derived from the appropriate base class.
INVALID_CONTAINER_ACCESS 8 Invalid container access occurred.
ACCESS_DENIED 9 Access operation is denied, typically due to a database permission check.
OUT_OF_STEP 10 Out of step
OUT_OF_BALANCE 11 Out of balance
TIMEOUT_ERROR 12 Timeout error
STACK_OVERFLOW 13 Too deep inter-call
SKIP_TRANSACTION 14 The transaction is not executed.
REVERTED 32 ~ 999 End with revert request.(by Revision5, it was limited to 99)

JSON-RPC Failure

Failure object example

{
  "code" : -32700,
  "message": "Parse error"
}

Timeout object example

{
  "code" : -31006,
  "message": "Timeout",
  "data": "0x402b630c5ed80d1b8f0d89ca14a091084bcc0f6a98bc52329bccc045415bc0bd"
}

icx_sendTransactionAndWait and icx_waitTransactionResult may return one of timeout errors.
In those cases, it would have transaction hash in data field.

Error Codes

Below table shows the default error messages for the error code. Actual message may vary depending on the implementation.

Category Error code Message Description
Json Parsing -32700 Parse error Invalid JSON was received by the server.
An error occurred on the server while parsing the JSON text.
RPC Parsing -32600 Invalid Request The JSON sent is not a valid Request object.
-32601 Method not found The method does not exist / is not available.
-32602 Invalid params Invalid method parameter(s).
-32603 Internal error Internal JSON-RPC error.
Server Error -32000 ~ -32099 Server error.
System Error -31000 System Error Unknown system error.
-31001 Pool Overflow Transaction pool overflow.
-31002 Pending Transaction is in the pool, but not included in the block.
-31003 Executing Transaction is included in the block, but it doesn’t have confirmed result.
-31004 Not found Requested data is not found.
-31005 Lack of resource Resource is not available.
-31006 Timeout Fail to get result of transaction in specified timeout
-31007 System timeout Fail to get result of transaction in system timeout (short time than specified)
SCORE Error -30000 ~ -30999 Mapped errors from Failure code ( = -30000 — value )

JSON-RPC HTTP Header

You may set HTTP header for extension data of the request.

HTTP Header name : Icon-Options

Option Description Allowed APIs
timeout Timeout for waiting in millisecond icx_sendTransactionAndWait
icx_waitTransactionResult

JSON-RPC Methods

icx_getLastBlock

Returns the last block information.

Request

{
  "id": 1001,
  "jsonrpc": "2.0",
  "method": "icx_getLastBlock",
}

Parameters

None

Example responses

{
  "jsonrpc": "2.0",
  "result": {
    "block_hash": "8e25acc5b5c74375079d51828760821fc6f54283656620b1d5a715edcc0770c6",
     "confirmed_transaction_list": [
      {
        "from": "hx84f6c686fba03bc7ca65d15ae844ee56ff24a32b",
        "nid": "0x1",
        "signature": "tCUwOb6vsaUKy+NYvmzdJYC0jm3Erd5cR6wKnVuAjzMOECC+t/oK7fG/Tz2Y3C25o0AfCmbneXpias6xco+43wE=",
        "stepLimit": "0x3e8",
        "timestamp": "0x58a14bfe9b904",
        "to": "hx244deea00413d85c6637e7fdd53afa697f29d08f",
        "txHash": "0xd8da71e926052b960def61c64f325412772f8e986f888685bc87c0bc046c2d9f",
        "value": "0xa",
        "version": "0x3"
      }
     ],
    "height": 512,
    "merkle_tree_root_hash": "5c8d4e59ded657c6acbb67030929dfcaf114a268d6d58df53e7174e40db74158",
    "peer_id": "hx4208599c8f58fed475db747504a80a311a3af63b",
    "prev_block_hash": "0fdf04d13229482e3533948d4582344a3d44c399e71ab12c653ae57bcbee5d90",
    "signature": "",
    "time_stamp": 1559204699330360,
    "version": "2.0"
  },
  "id": "1001"
}

Responses

Status Meaning Description Schema
200 OK Success Block

icx_getBlockByHeight

Returns block information by block height.

Request

{
  "id": "1001",
  "jsonrpc": "2.0",
  "method": "icx_getBlockByHeight",
  "params": {
    "height": "0x100"
  }
}

Parameters

KEY VALUE type Description
height T_INT Integer of a block height

Example responses

{
  "jsonrpc": "2.0",
  "result": {
    "block_hash": "8e25acc5b5c74375079d51828760821fc6f54283656620b1d5a715edcc0770c6",
     "confirmed_transaction_list": [
      {
        "from": "hx84f6c686fba03bc7ca65d15ae844ee56ff24a32b",
        "nid": "0x1",
        "signature": "tCUwOb6vsaUKy+NYvmzdJYC0jm3Erd5cR6wKnVuAjzMOECC+t/oK7fG/Tz2Y3C25o0AfCmbneXpias6xco+43wE=",
        "stepLimit": "0x3e8",
        "timestamp": "0x58a14bfe9b904",
        "to": "hx244deea00413d85c6637e7fdd53afa697f29d08f",
        "txHash": "0xd8da71e926052b960def61c64f325412772f8e986f888685bc87c0bc046c2d9f",
        "value": "0xa",
        "version": "0x3"
      }
     ],
    "height": 512,
    "merkle_tree_root_hash": "5c8d4e59ded657c6acbb67030929dfcaf114a268d6d58df53e7174e40db74158",
    "peer_id": "hx4208599c8f58fed475db747504a80a311a3af63b",
    "prev_block_hash": "0fdf04d13229482e3533948d4582344a3d44c399e71ab12c653ae57bcbee5d90",
    "signature": "",
    "time_stamp": 1559204699330360,
    "version": "2.0"
  },
  "id": "1001"
}

Responses

Status Meaning Description Schema
200 OK Success Block

icx_getBlockByHash

Returns block information by block hash.

Request

{
  "id": 1001,
  "jsonrpc": "2.0",
  "method": "icx_getBlockByHash",
  "params": {
      "hash": "8e25acc5b5c74375079d51828760821fc6f54283656620b1d5a715edcc0770c6"
  }
}

Parameters

KEY VALUE type Description
hash T_HASH Hash of a block

Example responses

{
  "jsonrpc": "2.0",
  "result": {
    "block_hash": "8e25acc5b5c74375079d51828760821fc6f54283656620b1d5a715edcc0770c6",
     "confirmed_transaction_list": [
      {
        "from": "hx84f6c686fba03bc7ca65d15ae844ee56ff24a32b",
        "nid": "0x1",
        "signature": "tCUwOb6vsaUKy+NYvmzdJYC0jm3Erd5cR6wKnVuAjzMOECC+t/oK7fG/Tz2Y3C25o0AfCmbneXpias6xco+43wE=",
        "stepLimit": "0x3e8",
        "timestamp": "0x58a14bfe9b904",
        "to": "hx244deea00413d85c6637e7fdd53afa697f29d08f",
        "txHash": "0xd8da71e926052b960def61c64f325412772f8e986f888685bc87c0bc046c2d9f",
        "value": "0xa",
        "version": "0x3"
      }
     ],
    "height": 512,
    "merkle_tree_root_hash": "5c8d4e59ded657c6acbb67030929dfcaf114a268d6d58df53e7174e40db74158",
    "peer_id": "hx4208599c8f58fed475db747504a80a311a3af63b",
    "prev_block_hash": "0fdf04d13229482e3533948d4582344a3d44c399e71ab12c653ae57bcbee5d90",
    "signature": "",
    "time_stamp": 1559204699330360,
    "version": "2.0"
  },
  "id": "1001"
}

Responses

Status Meaning Description Schema
200 OK Success Block

icx_call

Calls SCORE’s external function.

Does not make state transition (i.e., read-only).

Request

{
  "id": 1001,
  "jsonrpc": "2.0",
  "method": "icx_call",
  "params": {
        "from": "hxbe258ceb872e08851f1f59694dac2558708ece11", // TX sender address
        "to": "cxb0776ee37f5b45bfaea8cff1d8232fbb6122ec32",   // SCORE address
        "dataType": "call",
        "data": {
            "method": "get_balance", // SCORE external function
            "params": {
                "address": "hx1f9a3310f60a03934b917509c86442db703cbd52" // input parameter of "get_balance"
            }
        }
    }
}

Parameters

KEY VALUE type Required Description
from T_ADDR_EOA required Message sender’s address.
to T_ADDR_SCORE required SCORE address that will handle the message.
height T_INT optional Integer of a block height
dataType T_DATA_TYPE required call is the only possible data type.
data JSON object required See Parameters — data.
data.method JSON string required Name of the function.
data.params JSON object required Parameters to be passed to the function.

Example responses

{
  "jsonrpc": "2.0",
  "result": "0x2961fff8ca4a62327800000",
  "id": 1001
}

Responses

Status Meaning Description Schema
200 OK Success

icx_getBalance

Returns the ICX balance of the given EOA or SCORE.

Request

{
  "id": 1001,
  "jsonrpc": "2.0",
  "method": "icx_getBalance",
   "params": {
        "address": "hxb0776ee37f5b45bfaea8cff1d8232fbb6122ec32"
    }
}

Parameters

KEY VALUE type Required Description
address T_ADDR_EOA or T_ADDR_SCORE required Address of EOA or SCORE
height T_INT optional Integer of a block height

Example responses

{
  "id": 1001,
  "jsonrpc": "2.0",
  "result": "0xde0b6b3a7640000"
}

Responses

Status Meaning Description Schema
200 OK Success

icx_getScoreApi

Returns SCORE’s external API list.

Request

{
  "id": 1001,
  "jsonrpc": "2.0",
  "method": "icx_getScoreApi",
  "params": {
      "address": "cxb0776ee37f5b45bfaea8cff1d8232fbb6122ec32"  // SCORE address
  }
}

Parameters

KEY VALUE type Required Description
address T_ADDR_SCORE required SCORE address to be examined.
height T_INT optional Integer of a block height

Example responses

{
    "jsonrpc": "2.0",
    "id": 1234,
    "result": [
        {
            "type": "function",
            "name": "balanceOf",
            "inputs": [
                {
                    "name": "_owner",
                    "type": "Address"
                }
            ],
            "outputs": [
                {
                    "type": "int"
                }
            ],
            "readonly": "0x1"
        },
        {
            "type": "eventlog",
            "name": "FundTransfer",
            "inputs": [
                {
                    "name": "backer",
                    "type": "Address",
                    "indexed": "0x1"
                },
                {
                    "name": "amount",
                    "type": "int",
                    "indexed": "0x1"
                },
                {
                    "name": "is_contribution",
                    "type": "bool",
                    "indexed": "0x1"
                }
            ]
        },
        {...}
    ]
}

Responses

Status Meaning Description Schema
200 OK Success
  • Fields containing information about the function
    • type : function, fallback, or eventlog
    • name : function name
    • inputs : parameters in array
      • name : parameter name
      • type : parameter type (int, str, bytes, bool, Address)
      • default: the default value if the parameter has a default value (optional)
      • indexed : 0x1 if the parameter is indexed (when this is eventlog) (optional)
    • outputs : return value
      • type : return value type (int, str, bytes, bool, Address, dict, list)
    • readonly : 0x1 if this is declared as external(readonly=True)
    • payable : 0x1 if this has payable decorator

icx_getTotalSupply

Returns total ICX coin supply that has been issued.

Request

{
  "id": 1001,
  "jsonrpc": "2.0",
  "method": "icx_getTotalSupply"
}

Parameters

KEY VALUE type Required Description
height T_INT optional Integer of a block height

Example responses

{
  "id": 1001,
  "jsonrpc": "2.0",
  "result": "0x2961fff8ca4a62327800000"
}

Responses

Status Meaning Description Schema
200 OK Success

icx_getTransactionResult

Returns the transaction result requested by transaction hash.

Request

{
  "jsonrpc": "2.0",
  "id": "1001",
  "method": "icx_getTransactionResult",
  "params": {
    "txHash": "0xd8da71e926052b960def61c64f325412772f8e986f888685bc87c0bc046c2d9f"
  }
}

Parameters

KEY VALUE type Description
txHash T_HASH Hash of the transaction

Example responses

{
  "jsonrpc": "2.0",
  "result": {
    "blockHash": "0x8ef3b2a67262b9b1fe4b598059774472e9ccef401734335d87a4ba998cfd40fb",
    "blockHeight": "0x200",
    "cumulativeStepUsed": "0x0",
    "eventLogs": [],
    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
    "status": "0x1",
    "stepPrice": "0x0",
    "stepUsed": "0x0",
    "to": "hx244deea00413d85c6637e7fdd53afa697f29d08f",
    "txHash": "0xd8da71e926052b960def61c64f325412772f8e986f888685bc87c0bc046c2d9f",
    "txIndex": "0x0"
  },
  "id": "1001"
}

Responses

Status Meaning Description Schema
200 OK Success Block

Transaction Result

KEY VALUE type Description
status T_INT 1 on success, 0 on failure.
to T_ADDR_EOA or T_ADDR_SCORE Recipient address of the transaction
failure JSON object This field exists when status is 0. Please refer failure object
txHash T_HASH Transaction hash
txIndex T_INT Transaction index in the block
blockHeight T_INT Height of the block that includes the transaction.
blockHash T_HASH Hash of the block that includes the transaction.
cumulativeStepUsed T_INT Sum of stepUsed by this transaction and all preceding transactions in the same block.
stepUsed T_INT The amount of step used by this transaction.
stepPrice T_INT The step price used by this transaction.
scoreAddress T_ADDR_SCORE SCORE address if the transaction created a new SCORE. (optional)
eventLogs T_ARRAY Array of eventlogs, which this transaction generated.
logsBloom T_BIN_DATA Bloom filter to quickly retrieve related eventlogs.

Failure object

KEY VALUE type Description
code T_INT Failure code.
message T_STRING Message for the failure.

icx_getTransactionByHash

Returns the transaction information requested by transaction hash.

Request

{
  "jsonrpc": "2.0",
  "id": "1001",
  "method": "icx_getTransactionByHash",
  "params": {
    "txHash": "0xd8da71e926052b960def61c64f325412772f8e986f888685bc87c0bc046c2d9f"
  }
}

Parameters

KEY VALUE type Description
txHash T_HASH Hash of the transaction

Example responses

{
  "jsonrpc": "2.0",
  "result": {
    "blockHash": "0x8ef3b2a67262b9b1fe4b598059774472e9ccef401734335d87a4ba998cfd40fb",
    "blockHeight": "0x200",
    "from": "hx84f6c686fba03bc7ca65d15ae844ee56ff24a32b",
    "nid": "0x1",
    "signature": "tCUwOb6vsaUKy+NYvmzdJYC0jm3Erd5cR6wKnVuAjzMOECC+t/oK7fG/Tz2Y3C25o0AfCmbneXpias6xco+43wE=",
    "stepLimit": "0x3e8",
    "timestamp": "0x58a14bfe9b904",
    "to": "hx244deea00413d85c6637e7fdd53afa697f29d08f",
    "txHash": "0xd8da71e926052b960def61c64f325412772f8e986f888685bc87c0bc046c2d9f",
    "txIndex": "0x0",
    "value": "0xa",
    "version": "0x3"
  },
  "id": "1001"
}

Responses

Status Meaning Description Schema
200 OK Success Block
KEY VALUE type Description
version T_INT Protocol version («0x3» for V3)
from T_ADDR_EOA EOA address that created the transaction
to T_ADDR_EOA or T_ADDR_SCORE EOA address to receive coins, or SCORE address to execute the transaction.
value T_INT Amount of ICX coins in loop to transfer. When omitted, assumes 0. (1 icx = 1 ^ 18 loop)
stepLimit T_INT Maximum step allowance that can be used by the transaction.
timestamp T_INT Transaction creation time. Timestamp is in microsecond.
nid T_INT Network ID
nonce T_INT An arbitrary number used to prevent transaction hash collision.
txHash T_HASH Transaction hash
txIndex T_INT Transaction index in a block. Null when it is pending.
blockHeight T_INT Block height where this transaction was in. Null when it is pending.
blockHash T_HASH Hash of the block where this transaction was in. Null when it is pending.
signature T_SIG Signature of the transaction.
dataType T_DATA_TYPE Type of data. (call, deploy, message or deposit)
data JSON object Contains various type of data depending on the dataType. See Parameters — data.

icx_sendTransaction

You can do one of the followings using this function.

  • Transfer designated amount of ICX coins from ‘from’ address to ‘to’ address.
  • Install a new SCORE.
  • Update the SCORE in the ‘to’ address.
  • Invoke a function of the SCORE in the ‘to’ address.
  • Transfer a message.
  • Change deposit of the SCORE.

This function causes state transition.

Coin transfer

{
    "jsonrpc": "2.0",
    "method": "icx_sendTransaction",
    "id": 1234,
    "params": {
        "version": "0x3",
        "from": "hxbe258ceb872e08851f1f59694dac2558708ece11",
        "to": "hx5bfdb090f43a808005ffc27c25b213145e80b7cd",
        "value": "0xde0b6b3a7640000",
        "stepLimit": "0x12345",
        "timestamp": "0x563a6cf330136",
        "nid": "0x3",
        "nonce": "0x1",
        "signature": "VAia7YZ2Ji6igKWzjR2YsGa2m53nKPrfK7uXYW78QLE+ATehAVZPC40szvAiA6NEU5gCYB4c4qaQzqDh2ugcHgA="
    }
}

SCORE function call

{
    "jsonrpc": "2.0",
    "method": "icx_sendTransaction",
    "id": 1234,
    "params": {
        "version": "0x3",
        "from": "hxbe258ceb872e08851f1f59694dac2558708ece11",
        "to": "cxb0776ee37f5b45bfaea8cff1d8232fbb6122ec32",
        "stepLimit": "0x12345",
        "timestamp": "0x563a6cf330136",
        "nid": "0x3",
        "nonce": "0x1",
        "signature": "VAia7YZ2Ji6igKWzjR2YsGa2m53nKPrfK7uXYW78QLE+ATehAVZPC40szvAiA6NEU5gCYB4c4qaQzqDh2ugcHgA=",
        "dataType": "call",
        "data": {
            "method": "transfer",
            "params": {
                "to": "hxab2d8215eab14bc6bdd8bfb2c8151257032ecd8b",
                "value": "0x1"
            }
        }
    }
}

SCORE install

{
    "jsonrpc": "2.0",
    "method": "icx_sendTransaction",
    "id": 1234,
    "params": {
        "version": "0x3",
        "from": "hxbe258ceb872e08851f1f59694dac2558708ece11",
        "to": "cx0000000000000000000000000000000000000000", // address 0 means SCORE install
        "stepLimit": "0x12345",
        "timestamp": "0x563a6cf330136",
        "nid": "0x3",
        "nonce": "0x1",
        "signature": "VAia7YZ2Ji6igKWzjR2YsGa2m53nKPrfK7uXYW78QLE+ATehAVZPC40szvAiA6NEU5gCYB4c4qaQzqDh2ugcHgA=",
        "dataType": "deploy",
        "data": {
            "contentType": "application/zip",
            "content": "0x1867291283973610982301923812873419826abcdef91827319263187263a7326e...", // compressed SCORE data
            "params": {  // parameters to be passed to on_install()
                "name": "ABCToken",
                "symbol": "abc",
                "decimals": "0x12"
            }
        }
    }
}

SCORE update

{
    "jsonrpc": "2.0",
    "method": "icx_sendTransaction",
    "id": 1234,
    "params": {
        "version": "0x3",
        "from": "hxbe258ceb872e08851f1f59694dac2558708ece11",
        "to": "cxb0776ee37f5b45bfaea8cff1d8232fbb6122ec32", // SCORE address to be updated
        "stepLimit": "0x12345",
        "timestamp": "0x563a6cf330136",
        "nid": "0x3",
        "nonce": "0x1",
        "signature": "VAia7YZ2Ji6igKWzjR2YsGa2m53nKPrfK7uXYW78QLE+ATehAVZPC40szvAiA6NEU5gCYB4c4qaQzqDh2ugcHgA=",
        "dataType": "deploy",
        "data": {
            "contentType": "application/zip",
            "content": "0x1867291283973610982301923812873419826abcdef91827319263187263a7326e...", // compressed SCORE data
            "params": {  // parameters to be passed to on_update()
                "amount": "0x1234"
            }
        }
    }
}

Message transfer

{
    "jsonrpc": "2.0",
    "method": "icx_sendTransaction",
    "id": 1234,
    "params": {
        "version": "0x3",
        "from": "hxbe258ceb872e08851f1f59694dac2558708ece11",
        "to": "hxbe258ceb872e08851f1f59694dac2558708ece11",
        "stepLimit": "0x12345",
        "timestamp": "0x563a6cf330136",
        "nid": "0x3",
        "nonce": "0x1",
        "signature": "VAia7YZ2Ji6igKWzjR2YsGa2m53nKPrfK7uXYW78QLE+ATehAVZPC40szvAiA6NEU5gCYB4c4qaQzqDh2ugcHgA=",
        "dataType": "message",
        "data": "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"
    }
}

Deposit add

{
    "jsonrpc": "2.0",
    "method": "icx_sendTransaction",
    "id": 1234,
    "params": {
        "version": "0x3",
        "from": "hxbe258ceb872e08851f1f59694dac2558708ece11",
        "timestamp": "0x563a6cf330136",
        "to": "cx2f501ff91ad48732673adf55a04f36d466cf269c",
        "stepLimit": "0x50000000",
        "nid": "0x3",
        "nonce": "0x1",
        "value": "0x10f0cf064dd59200000",
        "dataType": "deposit",
        "data": {
            "action": "add",
        }
    }
}

Parameters

KEY VALUE type Required Description
version T_INT required Protocol version («0x3» for V3)
from T_ADDR_EOA required EOA address that created the transaction
to T_ADDR_EOA or T_ADDR_SCORE required EOA address to receive coins, or SCORE address to execute the transaction.
value T_INT optional Amount of ICX coins in loop to transfer. When omitted, assumes 0. (1 icx = 1 ^ 18 loop)
stepLimit T_INT required Maximum step allowance that can be used by the transaction.
timestamp T_INT required Transaction creation time. Timestamp is in microsecond.
nid T_INT required Network ID («0x1» for Mainnet, «0x2» for Testnet, etc)
nonce T_INT optional An arbitrary number used to prevent transaction hash collision.
signature T_SIG required Signature of the transaction.
dataType T_DATA_TYPE optional Type of data. (call, deploy, message or deposit)
data JSON object optional The content of data varies depending on the dataType. See Parameters — data.

Parameters — data

data contains the following data in various formats depending on the dataType.

dataType == call

It is used when calling a function in SCORE, and data has dictionary value as follows.

KEY VALUE type Required Description
method String required Name of the function to invoke in SCORE
params JSON object optional Function parameters
dataType == deploy

It is used when installing or updating a SCORE, and data has dictionary value as follows.

KEY VALUE type Required Description
contentType String required Mime-type of the content
content T_BIN_DATA required Compressed SCORE data
params JSON object optional Function parameters will be delivered to on_install() or on_update()
dataType == message

It is used when transferring a message, and data has a HEX string.

dataType == deposit

It is used to change deposit.

KEY VALUE type Required Description
action String required Action to do. ( add, withdraw )
id T_HASH optional ID of the deposit to withdraw
amount T_INT optional Amount of deposit to withdraw

While the action is add, it uses coin value for adding a limited deposit or
increasing the unlimited deposit.
The deposit would be used for paying used steps by the transaction.

While the action is withdraw, id must be set for the limited deposit.
Otherwise, it may set amount for partial withdrawal for the unlimited deposit.

Case data.action data.id data.amount value
Add deposit add amount to add
Withdraw limited deposit withdraw ID of the deposit
Withdraw a part of unlimited deposit withdraw amount to withdraw
Withdraw whole of unlimited deposit withdraw

Example responses

{
  "jsonrpc": "2.0",
  "result": "0x402b630c5ed80d1b8f0d89ca14a091084bcc0f6a98bc52329bccc045415bc0bd",
  "id": "1001"
}

Responses

Status Meaning Description Schema
200 OK Success Block
  • Transaction hash (T_HASH) on success
  • Error code and message on failure

icx_sendTransactionAndWait

It sends a transaction like icx_sendTransaction, then it will wait for the
result of it for specified time. If the timeout isn’t set by user, it uses
defaultWaitTimeout.

It’s disabled by default. It can be enabled by setting defaultWaitTimeout as none-zero value.

Responses

Status Meaning Description Schema
200 OK Success Block
  • Same response value(Transaction Result) as icx_getTransactionResult on success
  • Error code, message and data on failure
  • data field of failure will be transaction hash(T_HASH) on timeout

icx_waitTransactionResult

It will wait for the result of the transaction for specified time.
If the timeout isn’t set by user, it uses defaultWaitTimeout.

It’s disabled by default. It can be enabled by setting defaultWaitTimeout as none-zero value.

Responses

Status Meaning Description Schema
200 OK Success Block
  • Same response value(Transaction Result) as icx_getTransactionResult on success
  • Error code, message and data on failure
  • data field of failure will be transaction hash(T_HASH) on timeout

icx_getScoreStatus

It returns status information of the smart contract.

Request

{
  "id": 1001,
  "jsonrpc": "2.0",
  "method": "icx_getScoreStatus",
  "params": {
    "address": "cxb0776ee37f5b45bfaea8cff1d8232fbb6122ec32"
  }
}

Parameters

KEY VALUE type Required Description
address T_ADDR_SCORE required SCORE address to be examined.
height T_INT optional Integer of a block height

Example responses

{
  "jsonrpc": "2.0",
  "id": 1001,
  "result": {
      "current": {
        "auditTxHash": "0x5ba8712782563fec86bbd6381a5a38c40ed74fc945f2f5c43321354d66343c0a",
        "codeHash": "0x7c7e4e67727a5f6c11f03dab37333e50ed6d47c243b4e486eaaa05d407fd3c84",
        "deployTxHash": "0x5ba8712782563fec86bbd6381a5a38c40ed74fc945f2f5c43321354d66343c0a",
        "type": "python",
        "status": "active"
      },
      "depositInfo": {
        "availableDeposit": "0x10f0cf064dd59200000",
        "availableVirtualStep": "0x0",
        "deposits": [
          {
            "depositRemain": "0x10f0cf064dd59200000"
          }
        ]
      },
      "owner": "hxff9221db215ce1a511cbe0a12ff9eb70be4e5764",
      "useSystemDeposit": "0x1"
  }
}

Response

Status Meaning Description Schema
200 OK Success ScoreStatus
  • SCORE Status as result on success
  • Error code, message and data on failure
  • Given address isn’t valid contract address, it returns failure.

SCORE Status

KEY VALUE type Description
owner T_ADDR_SCORE Owner of the score
blocked T_BOOL 0x1 if it’s blocked by governance
disabled T_BOOL 0x1 if it’s disabled by owner
useSystemDeposit T_BOOL 0x1 if it uses system deposit
current Contract Status Current contract
next Contract Status Next contract to be audited
depositInfo Deposit Information Deposit information

Contract Status

KEY VALUE type Description
status T_STRING Status of the contract
deployTxHash T_HASH TX Hash for deploy
auditTxHash T_HASH TX Hash for audit
type T_STRING Type of the code (one of system,java,python)
codeHash T_HASH Hash of the code

Deposit Information

KEY VALUE type Description
availableDeposit T_INT Available deposit amount
availableVirtualStep T_INT Available virtual steps(deprecated)
deposits a list of Deposits Remaining deposits

Deposit

  • Deposit V1
KEY VALUE type Description
id T_HASH ID of deposit
depositRemain T_INT Available deposit amount
depositUsed T_INT Used deposit amount
expires T_INT Expiration block height
virtualStepIssued T_INT Issued virtual steps
virtualStepUsed T_INT Used virtual steps
  • Deposit V2
KEY VALUE type Description
depositRemain T_INT Available deposit amount

JSON-RPC Debug

The debug end point is http://<host>:<port>/api/v3d/<channel>

A rule for channel name in main end point is applied.

APIs for debug endpoint.

  • debug_estimateStep
  • debug_getTrace

debug_getTrace

Returns the trace logs of the transaction

Request

{
  "jsonrpc": "2.0",
  "id": "1001",
  "method": "debug_getTrace",
  "params": {
    "txHash": "0x4f4feed4a1d29779f84460d663e1ffb894d65dacfa3cc215a353a4b0d0d8f020"
  }
}

Parameters

KEY VALUE type Required Description
hash T_HASH required Hash value of the transaction

Example responses

{
  "jsonrpc": "2.0",
  "result": {
    "logs": [
      {
        "level": 2,
        "msg": "FRAME[1] TRANSACTION start from=hx92b7608c53825241069a280982c4d92e1b228c84 to=cx9e3cadcc1a4be3323ea23371b84575abb32703ae id=0x4f4feed4a1d29779f84460d663e1ffb894d65dacfa3cc215a353a4b0d0d8f020",
        "ts": 0
      },
      {
        "level": 2,
        "msg": "FRAME[1] STEP apply type=default count=1 cost=100000 total=100000",
        "ts": 108
      },
      {
        "level": 2,
        "msg": "FRAME[1] STEP apply type=input count=101 cost=20200 total=120200",
        "ts": 112
      },
      {
        "level": 2,
        "msg": "FRAME[1] TRANSACTION charge fee=2054062500000000 steps=164325 price=12500000000",
        "ts": 1097
      },
      {
        "level": 2,
        "msg": "FRAME[1] TRANSACTION done status=Success steps=164325 price=12500000000",
        "ts": 1108
      }
    ],
    "status": "0x1"
  },
  "id": 100
}

Responses

Status Meaning Description Schema
200 OK Success Block

Trace Logs

KEY VALUE type Description
logs JSON array Array of Trace Log

Trace Log

KEY VALUE type Description
level JSON number Log level(0:Trace, 1:Debug, 2:System)
msg JSON string Log message
ts JSON number Time offset from the beginning in micro-second

debug_estimateStep

  • Returns an estimated step of how much step is necessary to allow the transaction to complete. The transaction will not be added to the blockchain. Note that the estimation can be larger than the actual amount of step to be used by the transaction for several reasons such as node performance.

Request

{
  "jsonrpc": "2.0",
  "method": "debug_estimateStep",
  "id": 1234,
  "params": {
    "version": "0x3",
    "from": "hxbe258ceb872e08851f1f59694dac2558708ece11",
    "to": "hx5bfdb090f43a808005ffc27c25b213145e80b7cd",
    "value": "0xde0b6b3a7640000",
    "timestamp": "0x563a6cf330136",
    "nid": "0x3",
    "nonce": "0x1"
  }
}

Parameters

  • The transaction information without stepLimit and signature
KEY VALUE type Required Description
version T_INT required Protocol version («0x3» for V3)
from T_ADDR_EOA required EOA address that created the transaction
to T_ADDR_EOA or T_ADDR_SCORE required EOA address to receive coins, or SCORE address to execute the transaction.
value T_INT optional Amount of ICX coins in loop to transfer. When ommitted, assumes 0. (1 icx = 1 ^ 18 loop)
timestamp T_INT required Transaction creation time. timestamp is in microsecond.
nid T_INT required Network ID («0x1» for Mainnet, «0x2» for Testnet, etc)
nonce T_INT optional An arbitrary number used to prevent transaction hash collision.
dataType T_DATA_TYPE optional Type of data. (call, deploy, or message)
data JSON dict or JSON string optional The content of data varies depending on the dataType. See Parameters — data.

Response

  • The amount of an estimated step

Response — success

{
    "jsonrpc": "2.0",
    "id": 1234,
    "result": "0x109eb0"
}

Response — failure

{
    "jsonrpc": "2.0",
    "id": 1234,
    "error": {
        "code": -32602,
        "message": "JSON schema validation error: 'version' is a required property"
    }
}
Источник

This page lists all the errors that a client can encounter from the API. Some are related to JSON-RPC and others to the RANDOM.ORG API.

The API implements the error codes listed in the JSON-RPC 2.0 Specification:

code message meaning
-32700 Parse error Invalid JSON was received by the server. An error occurred on the server while parsing the JSON text.
-32600 Invalid Request The JSON sent is not a valid Request object.
-32601 Method not found The method does not exist / is not available.
-32602 Invalid params Invalid method parameter(s).
-32603 Internal error Internal JSON-RPC error.
-32000 to -32099 Server error Reserved for implementation-defined server-errors.

Example 1

The following invokes a method that does not exist:

{
    "jsonrpc": "2.0",
    "method": "fooBar",
    "params": {
        "apiKey": "00000000-0000-0000-0000-000000000000",
        "n": 10,
        "min": 1,
        "max": 10,
        "replacement": true,
        "base": 10
    },
    "id": 18197
}

The service responds with the following:

{
    "jsonrpc": "2.0",
    "error": {
        "code": -32601,
        "message": "Method not found",
        "data": null
    },
    "id": 18197
}

Example 2

The following is missing the jsonrpc version identifier:

{
    "method": "generateIntegers",
    "params": {
        "apiKey": "00000000-0000-0000-0000-000000000000",
        "n": 10,
        "min": 1,
        "max": 10,
        "replacement": true,
        "base": 10
    },
    "id": 18197
}

The service responds with the following:

{
    "jsonrpc": "2.0",
    "error": {
        "code": -32600,
        "message": "Invalid Request",
        "data": null
    },
    "id": 18197
}

Example 3

The following has the wrong name for the characters parameter:

{
    "jsonrpc": "2.0",
    "method": "generateStrings",
    "params": {
        "apiKey": "00000000-0000-0000-0000-000000000000",
        "n": 10,
        "length": 4,
        "chars": "abcdefghijklmnopqrstuvwxyz",
        "replacement": true
    },
    "id": 18197
}

The service responds with the following:

{
    "jsonrpc": "2.0",
    "error": {
        "code": -32602,
        "message": "Invalid params",
        "data": null
    },
    "id": 18197
}

The following RANDOM.ORG-specific errors are also defined:

code message data
100 Method not (yet) implemented null
101 Service offline; please try again later null
200 Parameter ‘%s’ is malformed string
201 Parameter ‘%s’ has illegal value string
202 Parameter ‘%s’ is out of range; allowable values are [%d,%d] string, integer, integer
203 Parameter ‘%s’ has length %d, which is too long; maximum length is %d string, integer, integer
204 Parameter ‘%s’ has length %d, which is too short; minimum length is %d string, integer, integer
300 Parameter ‘%s’ must be less than parameter ‘%s’ string, string
301 You requested %d values without replacement but the domain you specified only contains %d integer, integer
302 The value you specified for parameter ‘%s’ has already been taken string
303 The resource identified by ‘%s’ was not found string
304 The resulting data’s size would be %d, which exceeds the maximum of %d integer, integer
400 The API key you specified does not exist null
401 The API key you specified is not running null
402 The operation requires %d requests, but the API key only has %d left integer, integer
403 The operation requires %d bits, but the API key only has %d left integer, integer
404 The API key you specified is not valid for the method you requested null
405 The API key you specified is not valid for the version of the API you are invoking null
500 You are not subscribed to %s string
501 The credentials ‘%s’ you specified are not valid or have expired string
502 Your prepaid account credit is negative; please top up and retry null
32000 Unknown error: %s string

The three columns in the table corresponds to the three fields
in the JSON-RPC error object. The code
field is intended to be machine-readable.
The message field is a human-readable string intended
for display to a user or for inclusion in a log file.
The data field contains the values of the positional
parameters from the message string in case that the
client wishes to customize the error message.

Example 1

The following requests integers using an API key that doesn’t exist:

{
    "jsonrpc": "2.0",
    "method": "generateIntegers",
    "params": {
        "apiKey": "ffffffff-ffff-ffff-ffff-ffffffffffff",
        "n": 10,
        "min": 1,
        "max": 10,
        "replacement": true,
        "base": 10
    },
    "id": 1247
}

The service responds with the following:

{
    "jsonrpc": "2.0",
    "error": {
        "code": 400,
        "message": "The API key you specified does not exist",
        "data": null
    },
    "id": 1247
}

Example 2

The following passes a string as the number of integers to generate:

{
    "jsonrpc": "2.0",
    "method": "generateIntegers",
    "params": {
        "apiKey": "00000000-0000-0000-0000-000000000000",
        "n": "xyz",
        "min": 1,
        "max": 10,
        "replacement": true,
        "base": 10
    },
    "id": 18197
}

The service responds with the following:

{
    "jsonrpc": "2.0",
    "error": {
        "code": 200,
        "message": "Parameter 'n' is malformed",
        "data": [
            "n"
        ]
    },
    "id": 18197
}

Example 3

The following requests more unique integers than there are in the specified range:

{
    "jsonrpc": "2.0",
    "method": "generateIntegers",
    "params": {
        "apiKey": "00000000-0000-0000-0000-000000000000",
        "n": 12,
        "min": 1,
        "max": 10,
        "replacement": false,
        "base": 10
    },
    "id": 238
}

The service responds with the following:

{
    "jsonrpc": "2.0",
    "error": {
        "code": 301,
        "message": "You requested 12 values without replacement but the domain you specified only contains 10",
        "data": [
            12,
            10
        ]
    },
    "id": 238
}

Источник
name category

JSON RPC Error Codes Improvement Proposal

To help developers add proper error handling in the dapp side, we need to implement custom error codes for the returned JSON RPC errors.

JSON RPC Standard errors

Code Possible Return message Description
-32700 Parse error Invalid JSON was received by the server. An error occurred on the server while parsing the JSON text.
-32600 Invalid Request The JSON sent is not a valid Request object.
-32601 Method not found The method does not exist / is not available.
-32602 Invalid params Invalid method parameter(s).
-32603 Internal error Internal JSON-RPC error.
-32000 to -32099 Server error. Reserved for implementation-defined server-errors.

Custom error codes:

Code Possible Return message Description
1 Unauthorized Should be used when some action is not authorized, e.g. sending from a locked account.
2 Action not allowed Should be used when some action is not allowed, e.g. preventing an action, while another depending action is processing on, like sending again when a confirmation popup is shown to the user (?).
3 Execution error Will contain a subset of custom errors in the data field. See below.

Custom error fields

Custom error 3 can contain custom error(s) to further explain what went wrong.
They will be contained in the data field of the RPC error message as follows:

{
    code: 3,
    message: 'Execution error',
    data: [{
        code: 102,
        message: 'Innsufficient gas'
    },
    {
        code: 103,
        message: 'Gas limit exceeded'
    }]
}
Code Possible Return message Description
100 X doesn’t exist Should be used when something which should be there is not found. (Doesn’t apply to eth_getTransactionBy* and eth_getBlock*. They return a success with value null)
101 Requires ether Should be used for actions which require somethin else, e.g. gas or a value.
102 Gas too low Should be used when a to low value of gas was given.
103 Gas limit exceeded Should be used when a limit is exceeded, e.g. for the gas limit in a block.
104 Rejected Should be used when an action was rejected, e.g. because of its content (too long contract code, containing wrong characters ?, should differ from -32602 — Invalid params).
105 Ether too low Should be used when a to low value of Ether was given.

Possible future error codes?

Code Possible Return message Description
106 Timeout Should be used when an action timedout.
107 Conflict Should be used when an action conflicts with another (ongoing?) action.
Источник

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