Komodo DeFi Framework RPC Protocol v2.0

Starting with version beta-2.1.3434 (opens new window), the Komodo DeFi Framework supports the standardized protocol format called mmrpc 2.0.

It includes a uniform request, successful and error response formats. At the moment, only a few RPC methods support the mmrpc 2.0 protocol.

Request

Structure	Type	Description
mmrpc	string	the string specifying the version of the Komodo DeFi Framework RPC protocol. Must be exactly "2.0"
userpass	string (optional)	your password for protected RPC methods. Skip this field if the specified method is public
method	string	the name of the method to be invoked
params	object (optional)	a structured value that holds the parameter values to be used during the invocation of the method. This field may be omitted if the method doesn't take arguments
id	number (optional)	the identifier is established by the client. Komodo DeFi Framework will reply with the same value in the Response object if the id field is included and not NULL

Response (Success)

Structure	Type	Description
mmrpc	string	the string specifying the version of the Komodo DeFi Framework RPC protocol
result	object	the value of this field is determined by the method invoked on Komodo DeFi Framework
id	number (optional)	the identifier established by the client. The same value as in the Request if it was passed

Response (Error)

Structure	Type	Description
mmrpc	string	the string specifying the version of the Komodo DeFi Framework RPC protocol
error	string	the common error description
error_path	string	the error path consisting of file names separated by a dot similar to JSON path notation
error_trace	string	the error path consisting of file and line number pairs separated by ']'
error_type	string	the string error identifier used to determine the cause of the error
error_data	object	an object containing the error data of the corresponding error_type
id	number (optional)	the identifier established by the client. The same value as in the Request if it was passed

📌 Examples

Command

curl --url "http://127.0.0.1:7783" --data "{\"mmrpc\":\"2.0\",\"userpass\":\"$userpass\",\"method\":\"withdraw\",\"params\":{\"coin\":\"KMD\",\"to\":\"RJTYiYeJ8eVvJ53n2YbrVmxWNNMVZjDGLh\",\"amount\":\"10\"},\"id\":0}"

Response (success)

{
  "mmrpc": "2.0",
  "result": {
    "tx_hex": "0400008085202f8901ef25b1b7417fe7693097918ff90e90bba1351fff1f3a24cb51a9b45c5636e57e010000006b483045022100b05c870fcd149513d07b156e150a22e3e47fab4bb4776b5c2c1b9fc034a80b8f022038b1bf5b6dad923e4fb1c96e2c7345765ff09984de12bbb40b999b88b628c0f9012102031d4256c4bc9f99ac88bf3dba21773132281f65f9bf23a59928bce08961e2f3ffffffff0200e1f505000000001976a91405aab5342166f8594baf17a7d9bef5d56744332788ac8cbaae5f010000001976a91405aab5342166f8594baf17a7d9bef5d56744332788ace87a5e5d000000000000000000000000000000",
    "tx_hash": "1ab3bc9308695960bc728fa427ac00d1812c4ae89aaa714c7618cb96d111be58",
    "from": ["R9o9xTocqr6CeEDGDH6mEYpwLoMz6jNjMW"],
    "to": ["R9o9xTocqr6CeEDGDH6mEYpwLoMz6jNjMW"],
    "total_amount": "60.10253836",
    "spent_by_me": "60.10253836",
    "received_by_me": "60.00253836",
    "my_balance_change": "-0.1",
    "block_height": 0,
    "timestamp": 1566472936,
    "fee_details": {
      "type": "Utxo",
      "amount": "0.1"
    },
    "coin": "RICK",
    "internal_id": ""
  },
  "id": 0
}

Response (error)

{
  "mmrpc": "2.0",
  "error": "The amount 0.000005 is too small",
  "error_path": "utxo_common",
  "error_trace": "utxo_common:1379] utxo_common:301]",
  "error_type": "AmountIsTooSmall",
  "error_data": {
    "amount": "0.000005"
  },
  "id": 0
}