README

LINE Pay SDK for PHP

LINE Pay SDK for PHP

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OUTLINE

• Demonstration
• Requirements
  • Authentication
• Installation
• Usage
  • Client
    • Device Information
  • Response
    • Retrieving Data
      • Retrieving as Object
      • Retrieving as Array
    • Methods
      • isSuccessful()
      • getPaymentUrl()
      • getPayInfo()
      • toArray()
      • toObject()
      • getStats()
  • Online APIs
    • Payment Details API
    • Request API
    • Confirm API
    • Refund API
    • Check Payment Status API
    • Capture API
    • Void API
    • Pay Preapproved API
    • Check RegKey API
    • Expire RegKey API
  • Offline APIs
    • Payment
    • Payment Status Check
    • Void
    • Capture
    • Refund
    • Authorization Details
  • Exceptions
    • ConnectException
• Resources
• References

DEMONSTRATION

Sample Codes Site for LINE Pay (Request, Confirm, Refund)

// Create LINE Pay client
$linePay = new \victorzhn\linePay\Client([
    'channelId' => 'Your merchant X-LINE-ChannelId',
    'channelSecret' => 'Your merchant X-LINE-ChannelSecret',
    'isSandbox' => true, 
]);

// Online Request API
$response = $linePay->request([
    'amount' => 250,
    'currency' => 'TWD',
    'orderId' => 'Your order ID',
    'packages' => [
        [
            'id' => 'Your package ID',
            'amount' => 250,
            'name' => 'Your package name',
            'products' => [
                [
                    'name' => 'Your product name',
                    'quantity' => 1,
                    'price' => 250,
                    'imageUrl' => 'https://yourname.com/assets/img/product.png',
                ],
            ],
        ],
    ],
    'redirectUrls' => [
        'confirmUrl' => 'https://yourname.com/line-pay/confirm',
        'cancelUrl' => 'https://yourname.com/line-pay/cancel',
    ],
]);

// Check Request API result (returnCode "0000" check method)
if (!$response->isSuccessful()) {
    throw new Exception("ErrorCode {$response['returnCode']}: {$response['returnMessage']}");
}

// Redirect to LINE Pay payment URL 
header('Location: '. $response->getPaymentUrl() );

LINE Pay API Tool for testing and loging APIs

REQUIREMENTS

This library requires the following:

• PHP 5.4.0+|7.0+
• guzzlehttp/guzzle 5.3.1+|6.0+
• LINE Pay merchant authentication

Authentication

Each LINE Pay merchant Requires authentication information for LINE Pay integration, as shown below:

• channel ID
• channel Secret

To get an LINE Pay Authentication:

1. Merchant's verification information can be viewed at LINE Pay Merchant Center after evaluation process is complete.
2. Login into LINE Pay Merchant Center, then get the ChannelId/ChannelSecret (Payment Integration Management > Manage Link Key).
3. In LINE Pay Merchant Center, set IP white list for your servers (Payment Integration Management > Manage Payment Server IP) (v3 is not required).

You can immediately create a sandbox merchant account for test through LINE Pay Sandbox Creation.

INSTALLATION

Run Composer in your project:

composer require victorzhn/line-pay-sdk ~3.0.0

Then you could use SDK class after Composer is loaded on your PHP project:

require __DIR__ . '/vendor/autoload.php';

use victorzhn\linePay\Client;

USAGE

Before using any API methods, first you need to create a Client with configuration, then use the client to access LINE Pay API methods.

Client

Create a LINE Pay Client with API Authentication:

$linePay = new \victorzhn\linePay\Client([
    'channelId' => 'Your merchant X-LINE-ChannelId',
    'channelSecret' => 'Your merchant X-LINE-ChannelSecret',
    'isSandbox' => true, 
]);

Device Information

You could set device information for Client (Optional):

$linePay = new \victorzhn\linePay\Client([
    'channelId' => 'Your merchant X-LINE-ChannelId',
    'channelSecret' => 'Your merchant X-LINE-ChannelSecret',
    'isSandbox' => true, 
    'merchantDeviceType' => 'Device type string',
    'merchantDeviceProfileId' => 'Device profile ID string',
]);

Response

Each API methods will return victorzhn\linePay\Response object, which can retrieve data referred to LINE Pay JSON response data structure.

Retrieving Data

Response object provides response body data accessing by object attributes or array keys:

Retrieving as Object

// Get LINE Pay results code from response
$returnCode = $response->returnCode;
// Get LINE Pay info.payInfo[] from response
$payinfo = $response->info->payinfo;

Retrieving as Array

// Get LINE Pay results code from response
$returnCode = $response['returnCode'];
// Get LINE Pay info.payInfo[] from response
$payinfo = $response['info']['payinfo'];

Methods

Response object has some helpful methods to use:

isSuccessful()

LINE Pay API result successful status (Check that returnCode is "0000")

Example:

if (!$response->isSuccessful()) {
    
    throw new Exception("Code {$response['returnCode']}: {$response['returnMessage']}");
}

getPaymentUrl()

Get LINE Pay API response body's info.paymentUrl (Default type is "web")

getPayInfo()

Get LINE Pay API response body's info.payInfo[] or info.[$param1].payInfo[] as array

toArray()

Get LINE Pay response body as array

toObject()

Get LINE Pay response body as object

getStats()

Get \GuzzleHttp\TransferStats object

Online APIs

For Web integration. Merchant will requests a payment and generates payment URL(QR code) to customer to scan by LINE App.

Flow: Request -> Confirm -> Details -> Refund

Payment Details API

Gets the details of payments made with LINE Pay. This API only gets the payments that have been captured.

public Response details(array $queryParams=null)

Example:

$response = $linePay->details([
    "transactionId" => [$transactionId],
]);

Request API

Prior to processing payments with LINE Pay, the Merchant is evaluated if it is a normal Merchant store then the information is requested for payment. When a payment is successfully requested, the Merchant gets a "transactionId" that is a key value used until the payment is completed or refunded.

public Response request(array $bodyParams=null)

Example:

$response = $linePay->request([
    'amount' => 250,
    'currency' => 'TWD',
    'orderId' => 'Your order ID',
    'packages' => [
        [
            'id' => 'Your package ID',
            'amount' => 250,
            'name' => 'Your package name',
            'products' => [
                [
                    'name' => 'Your product name',
                    'quantity' => 1,
                    'price' => 250,
                    'imageUrl' => 'https://yourname.com/assets/img/product.png',
                ],
            ],
        ],
    ],
    'redirectUrls' => [
        'confirmUrl' => 'https://yourname.com/line-pay/confirm',
        'cancelUrl' => 'https://yourname.com/line-pay/cancel',
    ],
]);

The $bodyParams specification can be referred to Request API v3 Request Body

Confirm API

This API is used for a Merchant to complete its payment. The Merchant must call Confirm Payment API to actually complete the payment. However, when "capture" parameter is "false" on payment reservation, the payment status becomes AUTHORIZATION, and the payment is completed only after "Capture API" is called.

public Response confirm(integer $transactionId, array $bodyParams=null)

Example:

$response = $linePay->confirm($transactionId, [
    "amount" => 250,
    "currency" => 'TWD',
]);

Refund API

Requests refund of payments made with LINE Pay. To refund a payment, the LINE Pay user's payment transactionId must be forwarded. A partial refund is also possible depending on the refund amount.

public Response refund(integer $transactionId, array $bodyParams=null)

Example:

$response = $linePay->refund($transactionId);

For Partial refund:

$response = $linePay->refund($transactionId, [
    'refundAmount' => 200,
]);

Check Payment Status API

An API to check payment request status of LINE Pay. The merchant should regularly check user payment confirm status without using the ConfirmURL and decide if it is possible to complete the payment.

public Response check(integer $transactionId)

Example:

$response = $linePay->check($transactionId);

Capture API

If "capture" is "false" when the Merchant calls the “Request API” , the payment is completed only after the Capture API is called.

public Response authorizationsCapture(integer $transactionId, array $bodyParams=null)

Example:

$response = $linePay->authorizationsCapture($transactionId, [
    "amount" => 250,
    "currency" => 'TWD',
]);

Void API

Voids a previously authorized payment. A payment that has been already captured can be refunded by using the “Refund API”.

public Response authorizationsVoid(integer $transactionId, array $bodyParams=null)

Example:

$response = $linePay->authorizationsVoid($transactionId);

Pay Preapproved API

When the payment type of the Request API was set as PREAPPROVED, a regKey is returned with the payment result. Pay Preapproved API uses this regKey to directly complete a payment without using the LINE app.

public Response preapproved(integer $regKey, array $bodyParams=null)

Example:

$response = $linePay->preapproved([
    'productName' => 'Your product name',
    'amount' => 250,
    'currency' => 'TWD',
    'orderId' => 'Your order ID',
]);

Check RegKey API

Checks if regKey is available before using the preapproved payment API.

public Response preapprovedCheck(integer $regKey, array $queryParams=null)

Example:

$response = $linePay->preapprovedCheck($regKey);

Expire RegKey API

Expires the regKey information registered for preapproved payment. Once the API is called, the regKey is no longer used for preapproved payments.

public Response preapprovedExpire(integer $regKey, array $bodyParams=null)

Example:

$response = $linePay->preapprovedExpire($regKey);

Offline APIs

For POS integration. Customer presents their barcode or QR code to merchants to scan at the POS machine.

Flow: OneTimeKeysPay -> OrdersCheck -> OrdersRefund

Payment

This API is to process payment by reading MyCode provided from LINE Pay App with Merchant's device.

public Response oneTimeKeysPay(array $bodyParams=null)

Example:

$response = $linePay->oneTimeKeysPay([
    'productName' => 'Your product name',
    'amount' => 250,
    'currency' => 'TWD',
    'productImageUrl' => 'https://yourname.com/assets/img/product.png',
    'orderId' => 'Your order ID',
    "oneTimeKey"=> 'LINE Pay MyCode',
]);

Payment Status Check

It's the API used when the final payment status can't be checked due to read timeout.

• The status needs to be checked by calling it at regular intervals and 3~5 seconds are recommended for the interval time.
• Payment valid time is maximum 20 minutes and it's calculated from the Payment API Response time. Therefore, a merchant should check the payment status for maximum 20 minutes. In case 20 minutes are exceeded, that transaction will be the payment that couldn't be completed due to exceeded valid time.

public Response ordersCheck(string $orderId, array $$queryParams=null)

Example:

$response = $linePay->ordersCheck($orderId);

Void

This API is to void the authorization.

public Response ordersVoid(string $orderId, array $bodyParams=null)

Example:

$response = $linePay->ordersVoid($orderId);

Capture

This API is to capture the authorized transaction.

public Response ordersCapture(string $orderId, array $bodyParams=null)

Example:

$response = $linePay->ordersCapture($orderId);

Refund

This API is to refund after the payment completion (Captured data).

public Response ordersRefund(string $orderId, array $bodyParams=null)

Example:

$response = $linePay->ordersRefund($orderId);

Authorization Details

This API is to search the authorization details. Only authorized or cancelled (Void or Expire) data can be searched and the data after capturing can be searched by The Payment Details API.

public Response authorizations(array $queryParams=null)

Example for searching transactionId:

$response = $linePay->authorizations([
    "transactionId" => [$transactionId],
]);

Example for searching orderId:

$response = $linePay->authorizations([
    "orderId" => $orderId,
]);

EXCEPTIONS

Client throws exceptions for errors that occur during a API transaction.

ConnectException

A victorzhn\linePay\exception\ConnectException exception is thrown in the event of a networking error (Timeout).

try {

    $response = $linePay->confirm($transactionId, $bodyParams);
    
} catch (\victorzhn\linePay\exception\ConnectException $e) {

    // Process of confirm API timeout handling
}

RESOURCES

LINE Pay Online API v3 Guide (EN)

LINE Pay Offline API v2 Guide (EN)

LINE Pay Sandbox creation

LINE Pay OneTimeKeys Simulation

LINE Pay OneTimeKeys Simulation (For TW Merchant)

LINE Pay Online API v2 Documents PDF version (Multi-language)

REFERENCES

LINE Pay Developers - APIs