Methods

This can be used after initializing the Wepin PIN Pad Library.

generateRegistrationPINBlock

wepinPin.generateRegistrationPINBlock()

To display the PIN pad screen to receive the PIN required for wallet creation and user registration, process the entered PIN to create a PIN Block.

Parameters

• <void>

Return value

• CompletableFuture <RegistrationPinBlock>

  • uvd <EncUVD>

    • b64Data <String> Data encrypted with the original key of b64SKey.

    • b64SKey <String> The key used to generate b64Data.

    • seqNum <Int> optional A value used to verify that PIN Blocks are used in sequential order.

  • hint <EncPinHint>

    • data <string> The encrypted value of the PIN hint.

    • length <string> The length of the PIN hint.

    • version <number>

    The version of the PIN hint.

Example

Java

wepinPin.generateRegistrationPINBlock().whenComplete((res, err) -> {
    if (err == null) {
        RegistrationPinBlock registerPin = new RegistrationPinBlock(res.getUvd(), res.getHint());
        // You need to make a Wepin RESTful API request using the received data.
    } else {
        System.out.println(err);
    }
});

Kotlin

wepinPin.generateRegistrationPINBlock().whenComplete { res, err ->
    if (err == null) {
        registerPin = RegistrationPinBlock(uvd = res!!.uvd, hint = res!!.hint)
        // You need to make a Wepin RESTful API request using the received data.
    } else {
      println(err)
    }
}

generateAuthPINBlock

wepinPin.generateAuthPINBlock(3)

To display the PIN pad screen to receive the PIN required for user authentication and process the entered PIN to create a PIN Block. If the user has enabled 2FA (OTP), display a screen to receive the OTP code and process it as well.

Parameters

• count <Int> optional

  The number of PIN Blocks to be generated. The default value is 1.

Return value

• Promise <AuthPinBlock>

  • uvdList List<EncUVD> A list of encrypted PIN Blocks.

    • <EncUVD>

      • b64Data <String> Data encrypted with the original key of b64SKey.

      • b64SKey <String> The key used to generate b64Data.

      • seqNum <Int> optional A value used to verify that PIN Blocks are used in sequential order. In a Multi Tx request, PIN Blocks must be used strictly in the received order (1, 2, 3...).

  • otp <String> optional The OTP code entered by the user if they have enabled 2FA (OTP).

Example

Java

wepinPin.generateAuthPINBlock(3).whenComplete((res, err) -> {
    if (err == null) {
        AuthPinBlock authPin = new AuthPinBlock(res.getUvdList(), res.getOtp());
        // You need to make a Wepin RESTful API request using the received data.
    } else {
        System.out.println(err);
    }
});

Kotlin

wepinPin.generateAuthPINBlock(3).whenComplete { res, err ->
    if (err == null) {
        authPin = AuthPinBlock(uvdList = res!!.uvdList, otp = res!!.otp)
        // You need to make a Wepin RESTful API request using the received data.
    } else {
      println(err)
    }
}

generateChangePINBlock

wepinPin.generateChangePINBlock()

To display the PIN pad screen to receive the PIN required for the user to change their PIN and process the entered PIN to create a PIN Block. If the user has enabled 2FA (OTP), display a screen to receive the OTP code and process it as well.

Parameters

• <void>

Return Value

• CompletableFuture <ChangePinBlock>

  • uvd <EncUVD>

    • b64Data <String> Data encrypted with the original key of b64SKey.

    • b64SKey <String> The key used to generate b64Data.

    • seqNum <Int> optional A value used to verify that PIN Blocks are used in sequential order.

  • newUVD <EncUVD>

    • b64Data <String> Data encrypted with the original key of b64SKey.

    • b64SKey <String> The key used to generate b64Data.

    • seqNum <Int> optional A value used to verify that PIN Blocks are used in sequential order.

  • hint <EncPinHint>

    • data <string> The encrypted value of the PIN hint.

    • length <string> The length of the PIN hint.

    • version <number>

    The version of the PIN hint.

  • otp <String> optional The OTP code entered by the user if they have enabled 2FA (OTP).

Example

Java

wepinPin.generateChangePINBlock().whenComplete((res, err) -> {
    if (err == null) {
        ChangePinBlock changePin = new ChangePinBlock(res.getUvd(), res.getNewUVD(), res.getHint(), res.getOtp());
        // You need to make a Wepin RESTful API request using the received data.
    } else {
        System.out.println(err);
    }
});

Kotlin

wepinPin.generateChangePINBlock().whenComplete { res, err ->
    if (err == null) {
        changePin = ChangePinBlock(uvd = res!!.uvd, newUVD = res.newUVD, hint = res.hint, otp = res.otp)
        // You need to make a Wepin RESTful API request using the received data.
    } else {
      println(err)
    }
}

generateAuthOTP

wepinPin.generateAuthOTPCode()

Display a screen to receive the OTP code from the user and process it.

Parameters

• <void>

Return Value

• CompletableFuture <AuthOTP>

  • code <String> The entered OTP code.

Example

Java

wepinPin.generateAuthOTPCode().whenComplete((res, err) -> {
    if (err == null) {
        AuthOTP authOTPCode = new AuthOTP(res.getCode());
        // You need to make a Wepin RESTful API request using the received data.
    } else {
        System.out.println(err);
    }
});

Kotlin

wepinPin.generateAuthOTPCode().whenComplete { res, err ->
    if (err == null) {
        authOTPCode = AuthOTP(res!!.code)
        // You need to make a Wepin RESTful API request using the received data.
    } else {
      println(err)
    }
}

finalize

wepinPin.finalize()

It terminates the use of the Wepin PIN Pad Library.

Parameters

• <void>

Return Value

• <void>

Example

Java

wepinPin.finalize();

Kotlin

wepinPin.finalize()

login

Starting from WepinPin v1.1.0, the WepinLogin SDK is integrated into WepinPin. If you choose not to use the integrated WepinLogin within WepinPin and instead use a separate WepinLogin SDK, make sure both SDKs are using the same version. Using mismatched versions may cause errors.

The login object provides various authentication methods through the Wepin Login library, allowing users to log in using different methods such as email/password, OAuth providers, or ID/Access Tokens. For more details on each method, refer to the official Login Library Guide.

Available Methods

• loginWithOauthProvider
• signUpWithEmailAndPassword
• loginWithEmailAndPassword
• loginWithIdToken
• loginWithAccessToken
• getRefreshFirebaseToken
• loginWepin
• getCurrentWepinUser
• logout

These methods support various login scenarios, allowing you to choose the most appropriate option based on your needs.

Exception

• WepinError

Example

// Login with OAuth Provider
wepinSDK.login.loginWithOauthProvider("google", "your-client-id")
    .thenCompose { authResult ->
        // Login using ID Token
        wepinSDK.login.loginWithIdToken(authResult.idToken)
    }.thenCompose { idTokenResult ->
        // Login to Wepin
        wepinSDK.login.loginWepin(idTokenResult)
    }.thenAccept { user ->
        Log.d("WepinSDK", "Login success! User Information: $user")
    }.exceptionally { e ->
        Log.e("WepinSDK", "Login fail: ${e.message}", e)
        null
    }

// Sign up with email and password
wepinSDK.login.signUpWithEmailAndPassword(
    email = '[e-mail]', 
    password = 'password123'
).thenAccept { signUpResult ->
    Log.d("WepinSDK", "Sign up success! User Information: $user")
}.exceptionally { error ->
    if (error is WepinError) {
    }
}

// Get current logged in user information
var currentUser = wepinSDK.login.getCurrentWepinUser()
    .thenAccept { user ->
        Log.d("WepinSDK", "Current user: $user")
    }.exceptionally { e ->
        Log.e("WepinSDK", "getCurrentWepinUser fail", e)
        null
    }

// logout
wepinSDK.login.logout()
    .thenAccept { result ->
        Log.d("WepinSDK", "Logout result: $result")
    }.exceptionally { e ->
        Log.e("WepinSDK", "Logout fail", e)
        null
    }