# Guide

### Sweep Swap API

{% content-ref url="api" %}
[api](https://apis.openocean.finance/developer/apis/sweep-swap-api/api)
{% endcontent-ref %}

{% hint style="info" %}
Before you start using sweep swap API, make sure you understand the content of the swap API. Normally, you only need to use a transaction body different from the swap API in the last step to build. Check below OpenOcean swap API as reference. It currently applies to V3 version.

[`swap API Getting Started`](https://apis.openocean.finance/developer/apis/swap-api)
{% endhint %}

### **Send transaction**

Here is the last step! Now you have several ways to swap the token you selected. You can use the multi\_swap\_quote API to get the transaction body from our API server. Here is a case for you to make a transaction on Arbitrum Chain.

The work flow we recommend for API users, is using swap\_quote API to get transaction body, then use the wallet to request your transaction on chain.

```
https://open-api.openocean.finance/v3/arbitrum/multi_swap_quote
```

```javascript
async swap() {
    let params = {
            inToken: [
                {
                    inTokenSymbol: "ETH",
                    inTokenAddress: "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE",
                    amount: "1000000000000000000",
                    slippage: 100
                },
                {
                    inTokenSymbol: "ARB",
                    inTokenAddress: "0x912CE59144191C1204E64559FE8253a0e49E6548",
                    amount: "1000000000000000000",
                    slippage: 100
                }
            ],
            outToken: {
                outTokenSymbol: "USDT",
                outTokenAddress: "0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9"
            },
            gasPrice: 10000000,
            account: "0xB3cbefF0336BaA4863Cb51238bD6C35BDAaB3D84"
        };
       
    const res = await axios.post("https://open-api.openocean.finance/v3/arbitrum/multi_swap_quote", params);
    if(res) {
        const {data,gasPrice} = res.data;
        const swapParams = {
            from:this.address,
            to:'0x6352a56caadc4f1e25cd6c75970fa768a3304e64', //Please use the contract from the contract page
            gasPrice: gasPrice,
            data
            }; 
        const result = await this.myWallet.sdk.eth.sendTransaction(swapParams)
     };
    
```

Once your wallet plugin was triggered, which means you are successfully using the `sendTransaction` function and all params are set. You can swap your token and the transaction hash can be fetched once your transaction is sent on-chain.