# Klaytn

## **getKalytnSignedTransaction**

The D'CENT Android SDK provides functions for signing transaction of coins.

**This function for :**

* `.KLAYTN` - klaytn (KLAY)
* `.KLAYTN_TESTNET` - kalytn baobab (KLAYt)

### **Parameters**

* coinType: klaytn networks coin type
* kalytnTransaction: (KlaytnTransation)klaytn transaction parameter

#### **class KlaytnTransaction**

<table><thead><tr><th width="161.33333333333331">Name</th><th width="120">Type</th><th>Description</th></tr></thead><tbody><tr><td>addressPath</td><td><code>String</code></td><td>sign key path for klaytn transaction</td></tr><tr><td>nonce</td><td><code>String</code></td><td>account nonce for klaytn transaction</td></tr><tr><td>to</td><td><code>String</code></td><td>recipient's address of klaytn transaction</td></tr><tr><td>amount</td><td><code>String</code></td><td>amount of ether to be sent. ( wei unit value )</td></tr><tr><td>gasLimit</td><td><code>String</code></td><td>gas limit value of klaytn transaction</td></tr><tr><td>gasPrice</td><td><code>String</code></td><td>gas price for klaytn transaction</td></tr><tr><td>data</td><td><code>String</code></td><td>transaction data of klaytn transaction</td></tr><tr><td>chainId</td><td><code>UInt32</code></td><td>chain id</td></tr><tr><td>from</td><td><code>String</code></td><td>(optional) Signer's Address of klaytn transaction</td></tr><tr><td>tx_type</td><td><code>UInt8</code></td><td>(optional) Type of klaytn transaction<br>The default value is <code>KlaytnType.LEGACY.rawValue</code></td></tr><tr><td>fee_ratio</td><td><code>UInt32</code></td><td>(optional)Fee Ratio of klaytn transaction</td></tr></tbody></table>

**enum KlaytnType**

Defines Transaction type of Klaytn (refer to [klaytn doc](https://docs.klaytn.foundation/content/dapp/json-rpc/api-references/klay/transaction/transaction-type-support))

* `LEGACY`
* `VALUE_TRANSFER`
* `FEE_DELEGATED_VALUE_TRANSFER`
* `FEE_DELEGATED_VALUE_TRANSFER_WITH_RATIO`
* `VALUE_TRANSFER_MEMO`
* `FEE_DELEGATED_VALUE_TRANSFER_MEMO`
* `FEE_DELEGATED_VALUE_TRANSFER_MEMO_WITH_RATIO`
* `SMART_CONTRACT_DEPLOY`
* `FEE_DELEGATED_SMART_CONTRACT_DEPLOY`
* `FEE_DELEGATED_SMART_CONTRACT_DEPLOY_WITH_RATIO`
* `SMART_CONTRACT_EXECUTION`
* `FEE_DELEGATED_SMART_CONTRACT_EXECUTION`
* `FEE_DELEGATED_SMART_CONTRACT_EXECUTION_WITH_RATIO`
* `CANCEL`
* `FEE_DELEGATED_CANCEL`
* `FEE_DELEGATED_CANCEL_WITH_RATIO`
* `FEE_PAYER`

### **Returns**

* result: (Bool) `true` if successful, `false` if error occurred
* txData: signed transaction

**Example**

```swift
let klaytnTransaction : KlaytnTransaction = KlaytnTransaction(addressPath: "0", nonce: "", to: "", amount: "", gasLimit: "", gasPrice: "", data: "", chainId: 0)
  
// test data (legacy)
klaytnTransaction.addressPath = "m/44'/8217'/0'/0/0"
klaytnTransaction.nonce = "8"
klaytnTransaction.to = "0xe5c23dAa6480e45141647E5AeB321832150a28D4"
klaytnTransaction.amount = "60000000000000000"
klaytnTransaction.gasLimit = "25000"
klaytnTransaction.gasPrice = "25000000000"
klaytnTransaction.data = ""
klaytnTransaction.chainId = "1001"
  
DcentMgr.getKlaytnSignedTransaction(coinType:.KLAYTN, klaytnTransaction:klaytnTransaction){ (result, txData) in
    print("Klaytn Transaction closure")
    if result == false {
        print("FAIL !!!")
    }else{
        print(txData)
    }
}
```

## **getKlaytnBasedTokenTransaction**

**This Function for:**

* `.KLAYTN_ERC20` - klaytn erc20 token (krc20)
* `.KRC20_TESTNET` - kalytn testnet erc20 token

### **Parameters**

* coinType: ethereum networks coin type
* tokenTransaction: (KlaytnTokenTransation)klaytn token transaction parameter

#### class KlaytnTokenTransaction

<table><thead><tr><th width="157.33333333333331">Name</th><th width="139">Type</th><th>Description</th></tr></thead><tbody><tr><td>addressPath</td><td><code>String</code></td><td>sign key path for klaytn transaction</td></tr><tr><td>nonce</td><td><code>String</code></td><td>account nonce for klaytn transaction</td></tr><tr><td>to</td><td><code>String</code></td><td>recipient's address of klaytn transaction</td></tr><tr><td>amount</td><td><code>String</code></td><td>amount of ether to be sent. ( wei unit value )</td></tr><tr><td>gasLimit</td><td><code>String</code></td><td>gas limit value of klaytn transaction</td></tr><tr><td>gasPrice</td><td><code>String</code></td><td>gas price for klaytn transaction</td></tr><tr><td>data</td><td><code>String</code></td><td>transaction data of klaytn transaction</td></tr><tr><td>chainId</td><td><code>UInt32</code></td><td>chain id</td></tr><tr><td>tokenName</td><td><code>String</code></td><td>token name of contract for <code>KLAYTN_ERC20</code> transaction</td></tr><tr><td>decimals</td><td><code>UInt32</code></td><td>decimals of contract for <code>KLAYTN_ERC20</code> transaction</td></tr><tr><td>tokenSymbol</td><td><code>String</code></td><td>symbol of contract for <code>KLAYTN_ERC20</code> transaction</td></tr><tr><td>from</td><td><code>String</code></td><td>(optional) Signer's Address of klaytn transaction</td></tr><tr><td>tx_type</td><td><code>UInt8</code></td><td>(optional) Type of klaytn transaction<br>The default value is <code>KlaytnType.LEGACY.rawValue</code></td></tr><tr><td>fee_ratio</td><td><code>UInt32</code></td><td>(optional)Fee Ratio of klaytn transaction</td></tr></tbody></table>

### **Returns**

* result: (Bool) `true` if successful, `false` if error occurred
* txData: signed transaction

**Example**

```swift
let krc20Transaction : KlaytnTokenTransaction = KlaytnTokenTransaction(addressPath: "", nonce: "", to: "", amount: "", gasLimit: "", gasPrice: "", data: "", chainId: 0, tokenName: "", decimals: 0, tokenSymbol: "")
  
// test data
krc20Transaction.addressPath = "m/44'/8217'/0'/0/0"
krc20Transaction.nonce = "6"
krc20Transaction.to = "0x92c1b39556d5322dac96e9e13d35a146297fcf43"
krc20Transaction.amount = "100000000"
krc20Transaction.gasLimit = "100000"
krc20Transaction.gasPrice = "25000000000"
krc20Transaction.data = "0xa9059cbb000000000000000000000000732E035fBdb9E5AB5Ef80c08f6aA081d029984dc"
krc20Transaction.chainId = "1001"
krc20Transaction.tx_type = KlaytnType.FEE_DELEGATED_SMART_CONTRACT_EXECUTION.rawValue
krc20Transaction.fromAddr = "0x689dfa2C77335722f333EeA102ba8A5E13d2AD1a"
krc20Transaction.fee_ratio = 0
krc20Transaction.tokenName = "BAOBABTOKEN"
krc20Transaction.decimals = 8
krc20Transaction.tokenSymbol = "BAO"  

DcentMgr.getKlaytnBasedTokenTransaction(coinType: .KLAYTN_ERC20, tokenTransaction: krc20Transaction){ (result, txData) in
    print("Klaytn token Transaction closure")
    if result == false {
        print("FAIL !!!")
    }else{
        print(txData)
    }
}
```