Provider API: WAX Wallet Integration Guide for DEX Developers

What Is the Injected Provider API?

The OKX Injected Provider API is a powerful JavaScript interface that enables seamless interaction between decentralized applications (DApps) and the OKX Wallet browser extension. This API allows developers to:

Request user account access
Read blockchain data from connected networks
Facilitate message and transaction signing
Manage wallet connections and events

Key Features of WAX API Integration

Scatter Protocol Compatibility

OKX Wallet's WAX API maintains full compatibility with the Scatter protocol, offering developers familiar functionality with these enhanced capabilities:

👉 Discover advanced wallet integration techniques

Wallet Connection Workflow

1. Establishing Wallet Connection

// Example connection code using Scatter protocol
if (window.okxwallet) {
    const result = await window.okxwallet.connect();
    console.log('Connected:', result);
}

2. Connection Status Verification

const isConnected = await window.okxwallet.isConnected();
console.log('Wallet status:', isConnected ? 'Connected' : 'Disconnected');

3. Retrieving Wallet Information

const walletInfo = await window.okxwallet.getWalletInfo();
console.log('Current wallet:', walletInfo || 'No active connection');

Transaction Signing Process

Using eosjs for Transaction Management

const { Api, JsonRpc } = require('eosjs');
const { JsSignatureProvider } = require('eosjs/dist/eosjs-jssig');

// Initialize with OKX provider
const signatureProvider = new JsSignatureProvider([window.okxwallet]);
const rpc = new JsonRpc('https://wax.greymass.com');
const api = new Api({ rpc, signatureProvider });

Event Listening System

Supported Events and Handlers

Event	Trigger Condition	Handler Example
`connect`	Wallet connection established	`wallet.on('connect', (account) => {...})`
`disconnect`	User disconnects wallet	`wallet.on('disconnect', () => {...})`
`accountChanged`	Active account switched	`wallet.on('accountChanged', (newAccount) => {...})`

👉 Explore complete event handling examples

Frequently Asked Questions

Q: How does OKX's implementation differ from standard Scatter?

A: While maintaining protocol compatibility, OKX adds enhanced security layers and optimized performance for high-frequency DEX operations.

Q: Can I use this with non-WAX blockchains?

A: The current implementation specializes in WAX blockchain operations, though similar principles apply to other EOSIO-based chains.

Q: What error handling should I implement?

A: Always include:

Connection timeout checks
Permission request fallbacks
Transaction status verification

Q: Is there rate limiting?

A: Standard web3 rate limits apply. Implement exponential backoff for retries during network congestion.

Best Practices for DEX Integration

Progressive Connection
Request minimal permissions initially, expanding as needed
State Management
Always verify connection status before transaction attempts
User Experience
Provide clear disconnection options and account switching UI
Security
Implement:
- End-to-end transaction validation
- Secure session handling
- Explicit user confirmation for sensitive actions

// Comprehensive example
async function fullIntegrationDemo() {
    try {
        if (!await window.okxwallet.isConnected()) {
            await window.okxwallet.connect();
        }
        
        const currentAccount = await window.okxwallet.getWalletInfo();
        console.log('Active account:', currentAccount);
        
        // Transaction example
        const transaction = {
            actions: [{
                account: 'eosio.token',
                name: 'transfer',
                authorization: [{
                    actor: currentAccount,
                    permission: 'active'
                }],
                data: {
                    from: currentAccount,
                    to: 'recipientaccount',
                    quantity: '1.0000 WAX',
                    memo: 'DEX integration test'
                }
            }]
        };
        
        const result = await api.transact(transaction, {
            blocksBehind: 3,
            expireSeconds: 30
        });
        
        console.log('Transaction confirmed:', result);
        
    } catch (error) {
        console.error('Integration error:', error);
    }
}

This comprehensive guide provides everything needed for robust WAX wallet integration through OKX's Provider API, combining technical precision with developer-friendly implementation strategies.