# Near DApps Integration

Welcome to Coin98 Extension Wallet Developer Guide. This documentation contains guides for developers to get started developing on Coin98 Extension Wallet.‌

## To detect Coin98 Extension with Near

To detect whether your browser is running Coin98 Extension, please use:

```javascript
if(window.coin98 || window.coin98.near || window.near?.isCoin98){
    console.log('Coin98 Extension is installed!');›
}
```

Notice: Coin98 Extension Testnet is under development and not available now.

Support `window.near only` and removal `window.web3`

***

## To connect Coin98 Extension Wallet

To connect Coin98 Extension means to access the user's \[blockchain - like Near] account(s).

```javascript
// Connect DApps
window.coin98.near.connect(<Prefix: optional>,<Contract ID: optional>);
// Get Account
window.coin98.near.selectedAddress;
// Get Full Accounts State
window.coin98.near.request({ method: 'near_accountState' });
// Check if DApps connected
window.coin98.near.isConnected();
```

***

## To disconnect Coin98 Extension Wallet

To disconnect Coin98 Extension, please use:

```
window.coin98.near.disconnect()
```

## To experience functions

Once your account is connected, let's start experiencing more functions.‌

### Call View Method

```javascript
const params = {
    contractId: 'token.v2.ref-finance.near',
    method: 'ft_balance_of',
    args: {
        account_id: account
    }
}
const balance = await window.coin98?.near.request({method: 'near_view', params})
console.log("Your near wallet balance ", balance)
```

### SignAndSend Transaction

```javascript
const params = {
    transactions,
    receiver: account
}

const result = await window.coin98?.near.request({method: 'near_signAndSendTransaction', params})
const balance = await window.coin98?.near.request({method: 'near_view', params})
console.log("Your near wallet balance ", balance)
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.coin98.com/developer-guide/near-dapps-integration.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.