Midtrans Client - Node JS

Midtrans ❤️ Node JS!

This is the Official Node JS API client/library for Midtrans Payment API. Visit https://midtrans.com. More information about the product and see documentation at http://docs.midtrans.com for more technical details.

1. Installation

1.a Using NPM

npm install --save midtrans-client

1.b Manual Installation

If you are not using NPM, you can clone or download this repository. Then require from index.js file.

let midtransClient = require('./midtrans-client-nodejs/index.js');

2. Usage

2.1 Choose Product/Method

We have 2 different products of payment that you can use:

Snap - Customizable payment popup will appear on your web/app (no redirection). doc ref
Snap Redirect - Customer need to be redirected to payment url hosted by midtrans. doc ref
Core API (VT-Direct) - Basic backend implementation, you can customize the frontend embedded on your web/app as you like (no redirection). doc ref

Choose one that you think best for your unique needs.

2.2 Client Initialization and Configuration

Get your client key and server key from Midtrans Dashboard

Create API client object

const midtransClient = require('midtrans-client');
// Create Core API instance
let coreApi = new midtransClient.CoreApi({
        isProduction : false,
        serverKey : 'YOUR_SERVER_KEY',
        clientKey : 'YOUR_CLIENT_KEY'
    });

const midtransClient = require('midtrans-client');
// Create Snap API instance
let snap = new midtransClient.Snap({
        isProduction : false,
        serverKey : 'YOUR_SERVER_KEY',
        clientKey : 'YOUR_CLIENT_KEY'
    });

You can also re-set config using Snap.apiConfig.set( ... ) example:

const midtransClient = require('midtrans-client');

// Create Snap API instance, empty config
let snap = new midtransClient.Snap();
snap.apiConfig.set({
        isProduction : false,
        serverKey : 'YOUR_SERVER_KEY',
        clientKey : 'YOUR_CLIENT_KEY'
    });

// You don't have to re-set using all the options, 
// i.e. set serverKey only
snap.apiConfig.set({serverKey : 'YOUR_SERVER_KEY'});

You can also set config directly from attribute

const midtransClient = require('midtrans-client');

// Create Snap API instance, empty config
let snap = new midtransClient.Snap();

snap.apiConfig.isProduction = false;
snap.apiConfig.serverKey = 'YOUR_SERVER_KEY';
snap.apiConfig.clientKey = 'YOUR_CLIENT_KEY';

2.2.A Snap

You can see Snap example here.

Available methods for Snap class

// return Snap API /transaction response as Promise of Object
createTransaction(parameter)

// return Snap API /transaction token as Promise of String
createTransactionToken(parameter)

// return Snap API /transaction redirect_url as Promise of String
createTransactionRedirectUrl(parameter)

parameter is Object or String of JSON of SNAP Parameter

Get Snap Token

const midtransClient = require('midtrans-client');
// Create Snap API instance
let snap = new midtransClient.Snap({
        isProduction : false,
        serverKey : 'YOUR_SERVER_KEY',
        clientKey : 'YOUR_CLIENT_KEY'
    });

let parameter = {
    "transaction_details": {
        "order_id": "test-transaction-123",
        "gross_amount": 200000
    }, "credit_card":{
        "secure" : true
    }
};


snap.createTransaction(parameter)
    .then((transaction)=>{
        // transaction token
        let transactionToken = transaction.token;
        console.log('transactionToken:',transactionToken);
    })

// alternative way to create transactionToken
// snap.createTransactionToken(parameter)
//     .then((transactionToken)=>{
//         console.log('transactionToken:',transactionToken);
//     })

Initialize Snap JS when customer click pay button

On frontend / html: Replace PUT_TRANSACTION_TOKEN_HERE with transactionToken acquired above

<html>
  <body>
    <button id="pay-button">Pay!</button>
    <pre><div id="result-json">JSON result will appear here after payment:<br></div></pre> 

<!-- TODO: Remove ".sandbox" from script src URL for production environment. Also input your client key in "data-client-key" -->
    <script src="https://app.sandbox.midtrans.com/snap/snap.js" data-client-key="<Set your ClientKey here>"></script>
    <script type="text/javascript">
      document.getElementById('pay-button').onclick = function(){
        // SnapToken acquired from previous step
        snap.pay('PUT_TRANSACTION_TOKEN_HERE', {
          // Optional
          onSuccess: function(result){
            /* You may add your own js here, this is just example */ document.getElementById('result-json').innerHTML += JSON.stringify(result, null, 2);
          },
          // Optional
          onPending: function(result){
            /* You may add your own js here, this is just example */ document.getElementById('result-json').innerHTML += JSON.stringify(result, null, 2);
          },
          // Optional
          onError: function(result){
            /* You may add your own js here, this is just example */ document.getElementById('result-json').innerHTML += JSON.stringify(result, null, 2);
          }
        });
      };
    </script>
  </body>
</html>

Implement Notification Handler

Refer to this section

2.2.B Snap Redirect

Also available as examples here.

Get Redirection URL of a Payment Page

const midtransClient = require('midtrans-client');
// Create Snap API instance
let snap = new midtransClient.Snap({
        isProduction : false,
        serverKey : 'YOUR_SERVER_KEY',
        clientKey : 'YOUR_CLIENT_KEY'
    });

let parameter = {
    "transaction_details": {
        "order_id": "test-transaction-123",
        "gross_amount": 200000
    }, "credit_card":{
        "secure" : true
    }
};

snap.createTransaction(parameter)
    .then((transaction)=>{
        // transaction redirect_url
        let redirectUrl = transaction.redirect_url;
        console.log('redirectUrl:',redirectUrl);
    })

// alternative way to create redirectUrl
// snap.createTransactionRedirectUrl(parameter)
//     .then((redirectUrl)=>{
//         console.log('redirectUrl:',redirectUrl);
//     })

Implement Notification Handler

Refer to this section

2.2.C Core API (VT-Direct)

You can see some Core API examples here.

Available methods for CoreApi class

/**
 * Do `/charge` API request to Core API
 * @param  {Object} parameter - object of Core API JSON body as parameter, will be converted to JSON (more params detail refer to: https://api-docs.midtrans.com)
 * @return {Promise} - Promise contains Object from JSON decoded response
 */
charge(parameter={})

/**
 * Do `/capture` API request to Core API
 * @param  {Object} parameter - object of Core API JSON body as parameter, will be converted to JSON (more params detail refer to: https://api-docs.midtrans.com)
 * @return {Promise} - Promise contains Object from JSON decoded response
 */
capture(parameter={})

/**
 * Do `/card/register` API request to Core API
 * @param  {Object} parameter - object of Core API JSON body as parameter, will be converted to JSON (more params detail refer to: https://api-docs.midtrans.com)
 * @return {Promise} - Promise contains Object from JSON decoded response
 */
cardRegister(parameter={})

/**
 * Do `/token` API request to Core API
 * @param  {Object} parameter - object of Core API JSON body as parameter, will be converted to JSON (more params detail refer to: https://api-docs.midtrans.com)
 * @return {Promise} - Promise contains Object from JSON decoded response
 */
cardToken(parameter={})

/**
 * Do `/point_inquiry/<tokenId>` API request to Core API
 * @param  {String} tokenId - tokenId of credit card (more params detail refer to: https://api-docs.midtrans.com)
 * @return {Promise} - Promise contains Object from JSON decoded response
 */
cardPointInquiry(tokenId)

parameter is Object or String of JSON of Core API Parameter

Credit Card Get Token

Get token should be handled on Frontend please refer to API docs

Credit Card Charge

const midtransClient = require('midtrans-client');
// Create Core API instance
let core = new midtransClient.CoreApi({
        isProduction : false,
        serverKey : 'YOUR_SERVER_KEY',
        clientKey : 'YOUR_CLIENT_KEY'
    });

let parameter = {
    "payment_type": "credit_card",
    "transaction_details": {
        "gross_amount": 12145,
        "order_id": "test-transaction-54321",
    },
    "credit_card":{
        "token_id": 'CREDIT_CARD_TOKEN', // change with your card token
        "authentication": true
    }
};

// charge transaction
core.charge(parameter)
    .then((chargeResponse)=>{
        console.log('chargeResponse:');
        console.log(chargeResponse);
    });

Credit Card 3DS Authentication

The credit card charge result may contains redirect_url for 3DS authentication. 3DS Authentication should be handled on Frontend please refer to API docs

For full example on Credit Card 3DS transaction refer to:

Express App examples that implement Snap & Core Api

2.3 Handle HTTP Notification

IMPORTANT NOTE: To update transaction status on your backend/database, DO NOT solely rely on frontend callbacks! For security reason to make sure the status is authentically coming from Midtrans, only update transaction status based on HTTP Notification or API Get Status.

Create separated web endpoint (notification url) to receive HTTP POST notification callback/webhook. HTTP notification will be sent whenever transaction status is changed. Example also available here

const midtransClient = require('midtrans-client');
// Create Core API / Snap instance (both have shared `transactions` methods)
let apiClient = new midtransClient.Snap({
        isProduction : false,
        serverKey : 'YOUR_SERVER_KEY',
        clientKey : 'YOUR_CLIENT_KEY'
    });

apiClient.transaction.notification(notificationJson)
    .then((statusResponse)=>{
        let orderId = statusResponse.order_id;
        let transactionStatus = statusResponse.transaction_status;
        let fraudStatus = statusResponse.fraud_status;

        console.log(`Transaction notification received. Order ID: ${orderId}. Transaction status: ${transactionStatus}. Fraud status: ${fraudStatus}`);

        // Sample transactionStatus handling logic

        if (transactionStatus == 'capture'){
            // capture only applies to card transaction, which you need to check for the fraudStatus
            if (fraudStatus == 'challenge'){
                // TODO set transaction status on your databaase to 'challenge'
            } else if (fraudStatus == 'accept'){
                // TODO set transaction status on your databaase to 'success'
            }
        } else if (transactionStatus == 'settlement'){
            // TODO set transaction status on your databaase to 'success'
        } else if (transactionStatus == 'deny'){
            // TODO you can ignore 'deny', because most of the time it allows payment retries
            // and later can become success
        } else if (transactionStatus == 'cancel' ||
          transactionStatus == 'expire'){
            // TODO set transaction status on your databaase to 'failure'
        } else if (transactionStatus == 'pending'){
            // TODO set transaction status on your databaase to 'pending' / waiting payment
        }
    });

2.4 Transaction Action

Also available as examples here

Get Status

// get status of transaction that already recorded on midtrans (already `charge`-ed) 
apiClient.transaction.status('YOUR_ORDER_ID OR TRANSACTION_ID')
    .then((response)=>{
        // do something to `response` object
    });

Get Status B2B

// get transaction status of VA b2b transaction
apiClient.transaction.statusb2b('YOUR_ORDER_ID OR TRANSACTION_ID')
    .then((response)=>{
        // do something to `response` object
    });

Approve Transaction

// approve a credit card transaction with `challenge` fraud status
apiClient.transaction.approve('YOUR_ORDER_ID OR TRANSACTION_ID')
    .then((response)=>{
        // do something to `response` object
    });

Deny Transaction

// deny a credit card transaction with `challenge` fraud status
apiClient.transaction.deny('YOUR_ORDER_ID OR TRANSACTION_ID')
    .then((response)=>{
        // do something to `response` object
    });

Cancel Transaction

apiClient.transaction.cancel('YOUR_ORDER_ID OR TRANSACTION_ID')
    .then((response)=>{
        // do something to `response` object
    });

Expire Transaction

apiClient.transaction.expire('YOUR_ORDER_ID OR TRANSACTION_ID')
    .then((response)=>{
        // do something to `response` object
    });

Refund Transaction

let parameter = {
    "refund_key": "order1-ref1",
    "amount": 5000,
    "reason": "Item out of stock"
}
apiClient.transaction.refund('YOUR_ORDER_ID OR TRANSACTION_ID',parameter)
    .then((response)=>{
        // do something to `response` object
    });

Refund Transaction with Direct Refund

let parameter = {
    "refund_key": "order1-ref1",
    "amount": 5000,
    "reason": "Item out of stock"
}
apiClient.transaction.refundDirect('YOUR_ORDER_ID OR TRANSACTION_ID',parameter)
    .then((response)=>{
        // do something to `response` object
    });

3. Handling Error / Exception

When using function that result in Midtrans API call e.g: core.charge(...) or snap.createTransaction(...) there's a chance it may throw error (MidtransError object), the error object will contains below properties that can be used as information to your error handling logic:

snap.createTransaction(parameter)
      .then((res)=>{
      })
      .catch((e)=>{
        e.message // basic error message string
        e.httpStatusCode // HTTP status code e.g: 400, 401, etc.
        e.ApiResponse // JSON of the API response 
        e.rawHttpClientData // raw Axios response object
      })

4. Advanced Usage

Custom Http Client Config

Under the hood this API wrapper is using Axios as http client. You can override the default config.

You can set via the value of this <api-client-instance>.httpClient.http_client.defaults object, like described in Axios guide. e.g:

// create instance of api client
let snap = new midtransClient.Snap({
        isProduction : false,
        serverKey : 'YOUR_SERVER_KEY',
        clientKey : 'YOUR_CLIENT_KEY'
    });

// set Axios timeout config to 2500
snap.httpClient.http_client.defaults.timeout = 2500; 

// set custom HTTP header for every request from this instance
snap.httpClient.http_client.defaults.headers.common['My-Header'] = 'my-custom-value';

Custom Http Client Interceptor

As Axios also support interceptor, you can also apply it here. e.g:

// Add a request interceptor
snap.httpClient.http_client.interceptors.request.use(function (config) {
    // Do something before request is sent
    return config;
  }, function (error) {
    // Do something with request error
    return Promise.reject(error);
  });

It can be used for example to customize/manipulate http request's body, header, etc. before it got sent to the destination API url.

Override Http Notification Url

As described in API docs, merchant can opt to change or add custom notification urls on every transaction. It can be achieved by adding additional HTTP headers into charge request.

This can be achived by:

// create instance of api client
let snap = new midtransClient.Snap({
        isProduction : false,
        serverKey : 'YOUR_SERVER_KEY',
        clientKey : 'YOUR_CLIENT_KEY'
});

// set custom HTTP header that will be used by Midtrans API to override notification url:
snap.httpClient.http_client.defaults.headers.common['X-Override-Notification'] = 'https://mysite.com/midtrans-notification-handler';

or append notification:

snap.httpClient.http_client.defaults.headers.common['X-Append-Notification'] = 'https://mysite.com/midtrans-notification-handler';

5. Iris Disbursement API

Iris is Midtrans’ cash management solution that allows you to disburse payments to any bank accounts in Indonesia securely and easily. Iris connects to the banks’ hosts to enable seamless transfer using integrated APIs.

For more details please visit: https://iris-docs.midtrans.com

5.1 Client Initialization

Get your API key from Midtrans Iris Dashboard

Create API client object. Note: the serverKey means your API key.

const midtransClient = require('midtrans-client');
// Create Core API instance
let iris = new midtransClient.Iris({
        isProduction : false,
        serverKey : 'YOUR_API_KEY'
    });

Then perform one of the available functions, using the payload described on Iris docs, e.g:

let iris = new midtransClient.Iris({
        isProduction : false,
        serverKey : 'YOUR_API_KEY'
    });

iris.createBeneficiaries({
  "name": "Budi Susantoo",
  "account": "0611101146",
  "bank": "bca",
  "alias_name": "budisusantoo",
  "email": "budi.susantoo@example.com"
})
  .then((res)=>{
    // do something based on the API response
  })
  .catch((err)=>{
    // do something based on the Error object & message
  })

5.2 Available methods of Iris API

  /**
   * Do `/ping` API request to Iris API
   * @return {Promise} - Promise contains String response
   */
  ping()
  /**
   * Do create `/beneficiaries` API request to Iris API
   * @param  {Object} parameter - object of Iris API JSON body as parameter, will be converted to JSON (more params detail refer to: https://iris-docs.midtrans.com)
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  createBeneficiaries(parameter={})
  /**
   * Do update `/beneficiaries/<alias_name>` API request to Iris API
   * @param  {String} parameter - alias_name of the beneficiaries that need to be updated
   * @param  {Object} parameter - object of Iris API JSON body as parameter, will be converted to JSON (more params detail refer to: https://iris-docs.midtrans.com)
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  updateBeneficiaries(aliasName,parameter={})
  /**
   * Do `/beneficiaries` API request to Iris API
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  getBeneficiaries()
  /**
   * Do create `/payouts` API request to Iris API
   * @param  {Object} parameter - object of Iris API JSON body as parameter, will be converted to JSON (more params detail refer to: https://iris-docs.midtrans.com)
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  createPayouts(parameter={})
  /**
   * Do approve `/payouts/approve` API request to Iris API
   * @param  {Object} parameter - object of Iris API JSON body as parameter, will be converted to JSON (more params detail refer to: https://iris-docs.midtrans.com)
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  approvePayouts(parameter={})
  /**
   * Do reject `/payouts/reject` API request to Iris API
   * @param  {Object} parameter - object of Iris API JSON body as parameter, will be converted to JSON (more params detail refer to: https://iris-docs.midtrans.com)
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  rejectPayouts(parameter={})
  /**
   * Do `/payouts/<reference_no>` API request to Iris API
   * @param  {String} parameter - reference_no of the payout
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  getPayoutDetails(referenceNo)
  /**
   * Do `/statements` API request to Iris API
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  getTransactionHistory(parameter={})
  /**
   * Do `/channels` API request to Iris API
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  getTopupChannels()
  /**
   * Do `/balance` API request to Iris API
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  getBalance()
  /**
   * Do `/bank_accounts` API request to Iris API
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  getFacilitatorBankAccounts()
  /**
   * Do `/bank_accounts/<bank_account_id>/balance` API request to Iris API
   * @param  {String} parameter - bank_account_id of the bank account
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  getFacilitatorBalance(bankAccountId)
  /**
   * Do `/beneficiary_banks` API request to Iris API
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  getBeneficiaryBanks()
  /**
   * Do `/account_validation` API request to Iris API
   * @param  {Object} parameter - object of Iris API JSON body as parameter, will be converted to GET Query param (more params detail refer to: https://iris-docs.midtrans.com)
   * @return {Promise} - Promise contains Object from JSON decoded response
   */
  validateBankAccount(parameter={})

You can also refer to Iris test cases for sample usage for now. Dedicated sample usage might be written later in the future.

Examples

Examples are available on /examples folder. There are:

Core Api examples
Snap examples
Express App examples that implement Snap & Core Api

Notes

Not Designed for Frontend Usage

This library/package is mainly NOT FOR FRONTEND (Browser's javascript) usage, but for backend (Node JS server) usage:

This is mainly for backend usage, to do secure server-to-server/backend-to-backend API call.
You may/will encounter CORS issue if you are using this to do API request from frontend.
Your API ServerKey may also be exposed to public if you are using this on frontend.
If what you need is to display Snap payment page on your frontend, please follow this official documentation
- If you are using ReactJS follow this recommendation.

Get help

Midtrans Docs
Midtrans Dashboard
SNAP documentation
Core API documentation
Can't find answer you looking for? email to support@midtrans.com

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README.md

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Midtrans Client - Node JS

1. Installation

1.a Using NPM

1.b Manual Installation

2. Usage

2.1 Choose Product/Method

2.2 Client Initialization and Configuration

2.2.A Snap

Get Snap Token

Initialize Snap JS when customer click pay button

Implement Notification Handler

2.2.B Snap Redirect

Get Redirection URL of a Payment Page

Implement Notification Handler

2.2.C Core API (VT-Direct)

Credit Card Get Token

Credit Card Charge

Credit Card 3DS Authentication

2.3 Handle HTTP Notification

2.4 Transaction Action

Get Status

Get Status B2B

Approve Transaction

Deny Transaction

Cancel Transaction

Expire Transaction

Refund Transaction

Refund Transaction with Direct Refund

3. Handling Error / Exception

4. Advanced Usage

Custom Http Client Config

Custom Http Client Interceptor

Override Http Notification Url

5. Iris Disbursement API

5.1 Client Initialization

5.2 Available methods of Iris API

Examples

Notes

Not Designed for Frontend Usage

Get help