# Vechain

## **getVechainSignedTransaction**

**This function for :**

* `.VECHAIN` - vechain (VET)
* `.VECHAIN_ERC20` - vechain token

### **Parameters**

* coinType: vechain networks coin type
* vechainTransaction: ([VechainTransation](#class-vechaintransaction))vechain transaction parameter

#### **class VechainTransaction**

<table><thead><tr><th width="193.33333333333331">Name</th><th width="118">Type</th><th>Description</th></tr></thead><tbody><tr><td>sigHash</td><td><code>String</code></td><td>transaction that has not been signed of vechain transaction</td></tr><tr><td>key</td><td><code>String</code></td><td>sign key path for vechain transaction</td></tr><tr><td>fee</td><td><code>String</code></td><td>transaction fee of vechain transaction<br>* fee value is configured in vechain(VET) unit.</td></tr><tr><td>nonce</td><td><code>String</code></td><td>(optional)transaction nonce of vechain transaction</td></tr><tr><td>decimals</td><td><code>String</code></td><td>transaction decimals of vechain transaction</td></tr><tr><td>symbol</td><td><code>String</code></td><td>transaction symbol of vechain transaction</td></tr><tr><td>optionParam</td><td><code>String</code></td><td>(optional)option parameter</td></tr></tbody></table>

### **Returns**

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

### **Requirements**

* D'CENT Biometric Wallet version 2.23.2 or higher is required.

**Example**

```swift
let vechainTransaction : VechainTransaction = VechainTransaction(sigHash: "f83b2787c6143a04c08fe18202d0e1e094a57105e43efa47e787d84bb6dfedb19bdcaa8a908908e3f50b173c100001808082520880860152671166bdc0", key: "m/44'/818'/0'/0/0", fee: "0.21", decimals: 18, symbol: "VET", optionParam: "")

DcentMgr.getVechainSignedTransaction(coinType: .VECHAIN, vechainTransaction: vechainTransaction) { (result, txData) in
    print("Vechain Transaction closure")
    if result == false {
        print("FAIL !!!")
    }else{
        print(txData)
    }
}
```