Account

eth_accounts

Returns a list of addresses owned by client.

Parameters

None

Return Value

Type	Description
Array of 20-byte DATA	Addresses owned by the client.

Example

// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_accounts","params":[],"id":1}' http://localhost:8551

// Result
{
  "jsonrpc": "2.0",
  "id":1,
  "result": ["0xc94770007dda54cF92009BFF0dE90c06F603a09f"]
}

eth_getBalance

Returns the balance of the account of given address.

Parameters

Name	Type	Description
address	20-byte DATA	Address to check for balance.
block number or hash	QUANTITY | TAG | HASH	Integer or hexadecimal block number, or the string "earliest", "latest" or "pending" as in the default block parameter, or block hash.

Return Value

Type	Description
QUANTITY	Integer of the current balance in peb.

Example

// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0xc94770007dda54cF92009BFF0dE90c06F603a09f", "latest"],"id":1}' http://localhost:8551

// Result
{
  "jsonrpc": "2.0","id":1,
  "result": "0x0234c8a3397aab58" // 158972490234375000
}

eth_getCode

Returns code at a given address.

Parameters

Type	Description
20-byte DATA	Address
QUANTITY | TAG | HASH	Integer or hexadecimal block number, or the string "earliest", "latest" or "pending" as in the default block parameter, or block hash.

Return Value

Type	Description
DATA	The code from the given address.

Example

// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_getCode","params":["0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b", "0x2"],"id":1}' http://localhost:8551

// Result
{
  "jsonrpc": "2.0",
  "id":1,
  "result":   "0x600160008035811a818181146012578301005b601b6001356025565b8060005260206000f25b600060078202905091905056"
}

eth_getTransactionCount

Returns the number of transactions sent from an address.

Parameters

Type	Description
20-byte DATA	Address
QUANTITY | TAG | HASH	Integer or hexadecimal block number, or the string "earliest", "latest" or "pending" as in the default block parameter, or block hash.

Return Value

Type	Description
QUANTITY	Integer of the number of transactions send from this address.

Example

// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_getTransactionCount","params":["0xc94770007dda54cF92009BFF0dE90c06F603a09f","latest"],"id":1}' http://localhost:8551

// Result
{
 "jsonrpc": "2.0",
 "id":1,
 "result": "0x1" // 1
}

eth_sign

The sign method calculates a Klaytn-specific signature with:

sign(keccak256("\x19Klaytn Signed Message:\n" + len(message) + message)))

Adding a prefix to the message makes the calculated signature recognizable as a Klaytn-specific signature. This prevents misuse where a malicious dApp signs arbitrary data (e.g. transaction) and uses the signature for impersonation.

NOTE: The address to sign with must be unlocked.

Parameters

Name	Type	Description
account	20-byte DATA	Address
message	N-byte DATA	Message to sign

Return Value

Type	Description
DATA	Signature

Example

// Request
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_sign","params":["0x9b2055d370f73ec7d8a03e965129118dc8f5bf83", "0xdeadbeaf"],"id":1}' http://localhost:8551

// Result
{
  "jsonrpc": "2.0",
  "id":1,
  "result": "0xa3f20717a250c2b0b729b7e5becbff67fdaef7e0699da4de7ca5895b02a170a12d887fd3b17bfdce3481f10bea41f45ba9f709d39ce8325427b57afcfc994cee1b"
}