> For the complete documentation index, see [llms.txt](https://docs.altura.com/altura-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.altura.com/altura-documentation/js-sdk-reference/altura-guard-ii/transaction-requests/submitting-a-contract-transaction-request.md).
# Submitting a contract transaction request
To use this method, you must provide the transaction data. Here's an example: \
(we are approving 0.1 BUSD)
```javascript
const spenderAddress = "0x78867BbEeF44f2326bF8DDd1941a4439382EF2A7";
const contractAddress = "0x78867BbEeF44f2326bF8DDd1941a4439382EF2A7";
const abi = [
{
inputs: [
{ internalType: "address", name: "spender", type: "address" },
{ internalType: "uint256", name: "amount", type: "uint256" },
],
name: "approve",
outputs: [{ internalType: "bool", name: "", type: "bool" }],
stateMutability: "nonpayable",
type: "function",
},
];
const contract = new ethers.Contract(contractAddress, abi);
const DATA = contract.interface.encodeFunctionData("approve", [
spenderAddress,
"100000000000000000",
]);
```
{% hint style="info" %}
We utilize the ethers library to encode the data. You can learn more about it by referring to the following link:
{% endhint %}
### Usage in your script
{% tabs %}
{% tab title="JavaScript" %}
```javascript
const sendContractTransaction = await alturaGuard.sendContractTransaction(CONTRACT_ADDRESS,CHAIN_ID,DATA);
```
{% endtab %}
{% tab title="TypeScript" %}
```typescript
const sendContractTransaction:any = await alturaGuard.sendContractTransaction(CONTRACT_ADDRESS,CHAIN_ID,DATA);
```
{% endtab %}
{% endtabs %}
### **Parameters**