// Create an instance of WalletLink class
let walletLink = WalletLink(notificationUrl: notificationUrl)

// To pair the device with a browser after scanning WalletLink QR code
walletLink.link(
    sessionId: sessionId,
    secret: secret,
    url: serverUrl,
    userId: userId,
    metadata: [.ethereumAddress: ethereumAddress]
)
.subscribe(onSuccess: { _ in
    // New WalletLink connection was established
}, onError: { error in
    // Error while connecting to WalletLink server (walletlinkd)
})
.disposed(by: disposeBag)

// Listen on incoming requests
walletLink.requests
    .observeOn(MainScheduler.instance)
    .subscribe(onNext: { request in
        // New unseen request
    })
    .disposed(by: disposeBag)

// Approve DApp permission request (EIP-1102)
walletLink.approveDappPermission(requestId: request.hostRequestId)
    .subscribe(onSuccess: { _ in
        // Browser received EIP-1102 approval
    }, onError: { error in
        // Browser failed to receive EIP-1102 approval
    })
    .disposed(by: disposeBag)

// Approve a given transaction/message signing request
walletLink.approve(requestId: request.hostRequestId, signedData: signedData)
    .subscribe(onSuccess: { _ in
        // Browser received request approval
    }, onError: { error in
        // Browser failed to receive request approval
    })
    .disposed(by: disposeBag)

// Reject transaction/message/EIP-1102 request
walletLink.reject(requestId: request.hostRequestId)
    .subscribe(onSuccess: { _ in
        // Browser received request rejection
    }, onError: { error in
        // Browser failed to receive request rejection
    })
    .disposed(by: disposeBag)