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Official Midtrans Payment API Client

Project description

Midtrans Client - Python

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Midtrans ❤️ Python! 🐍

This is the Official Python 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 Pip

pip install midtransclient

1.b Manual Installation

If you are not using Pip, you can clone or download this repository. Then import from midtransclient folder.

Or run Pip install from the repo folder.

pip install .

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

# Create Core API instance
core_api = midtransclient.CoreApi(
    is_production=False,
    server_key='YOUR_SERVER_KEY',
    client_key='YOUR_CLIENT_KEY'
)
# Create Snap API instance
snap = midtransclient.Snap(
    is_production=False,
    server_key='YOUR_SERVER_KEY',
    client_key='YOUR_CLIENT_KEY'
)

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

# initialize object, empty config
snap = midtransclient.Snap()

# re-set full config
snap.api_config.set(
    is_production=False,
    server_key='YOUR_SERVER_KEY',
    client_key='YOUR_CLIENT_KEY'
)

# re-set server_key only
snap.api_config.set(server_key='YOUR_SERVER_KEY')

# re-set is_production only
snap.api_config.set(is_production=True)

You can also set config directly from attribute

# initialize object, empty config
snap = midtransclient.Snap()

# set config
snap.api_config.is_production=False
snap.api_config.server_key='YOUR_SERVER_KEY'
snap.api_config.client='YOUR_CLIENT_KEY'

2.2.A Snap

You can see Snap example here.

Available methods for Snap class

# return Snap API /transaction response as Dictionary
def create_transactions(parameter):

# return Snap API /transaction token as String
def create_transactions_token(parameter):

# return Snap API /transaction redirect_url as String
def create_transactions_redirect_url(parameter):

parameter is Dictionary or String of JSON of SNAP Parameter

Get Snap Token

# Create Snap API instance
snap = midtransclient.Snap(
    is_production=False,
    server_key='YOUR_SERVER_KEY',
    client_key='YOUR_CLIENT_KEY'
)
# Build API parameter
param = {
    "transaction_details": {
        "order_id": "test-transaction-123",
        "gross_amount": 200000
    }, "credit_card":{
        "secure" : True
    }
}

transaction = snap.create_transaction(param)

transaction_token = transaction['token']
# alternative way to create transaction_token:
# transaction_token = snap.create_transaction_token(param)

Initialize Snap JS when customer click pay button

Replace PUT_TRANSACTION_TOKEN_HERE with transaction_token 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

# Create Snap API instance
snap = midtransclient.Snap(
    is_production=False,
    server_key='YOUR_SERVER_KEY',
    client_key='YOUR_CLIENT_KEY'
)
# Build API parameter
param = {
    "transaction_details": {
        "order_id": "test-transaction-123",
        "gross_amount": 200000
    }, "credit_card":{
        "secure" : True
    }
}

transaction = snap.create_transaction(param)

transaction_redirect_url = transaction['redirect_url']
# alternative way to create redirect_url:
# transaction_redirect_url = snap.create_redirect_url(param)

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

def charge(self,parameters=dict()):
    """
    Trigger `/charge` API call to Core API
    :param parameters: dictionary of Core API JSON body as parameter, will be converted to JSON
    (more params detail refer to: https://api-docs.midtrans.com)

    :return: Dictionary from JSON decoded response
    """

def capture(self,parameters=dict()):
    """
    Trigger `/capture` API call to Core API
    Capture is only used for pre-authorize transaction only
    :param parameters: dictionary of Core API JSON body as parameter, will be converted to JSON
    (more params detail refer to: https://api-docs.midtrans.com)

    :return: Dictionary from JSON decoded response
    """

def card_register(self,parameters=dict()):
    """
    Trigger `/card/register` API call to Core API
    :param parameters: dictionary of Core API JSON body as parameter, will be converted to JSON
    (more params detail refer to: https://api-docs.midtrans.com)

    :return: Dictionary from JSON decoded response
    """

def card_token(self,parameters=dict()):
    """
    Trigger `/token` API call to Core API
    :param parameters: dictionary of Core API JSON body as parameter, will be converted to JSON
    (more params detail refer to: https://api-docs.midtrans.com)

    :return: Dictionary from JSON decoded response
    """

def card_point_inquiry(self,token_id):
    """
    Trigger `/point_inquiry/<token-id>` API call to Core API
    :param parameters: dictionary of Core API JSON body as parameter, will be converted to JSON
    (more params detail refer to: https://api-docs.midtrans.com)

    :return: Dictionary from JSON decoded response
    """

parameter is Dictionary 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

# Create Core API instance
core_api = midtransclient.Snap(
    is_production=False,
    server_key='YOUR_SERVER_KEY',
    client_key='YOUR_CLIENT_KEY'
)
# Build API parameter
param = {
    "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
    }
}

# charge transaction
charge_response = core_api.charge(param)
print('charge_response:')
print(charge_response)

2.3 Handle HTTP Notification

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

# Create Core API / Snap instance (both have shared `transactions` methods)
api_client = midtransclient.CoreApi(
    is_production=False,
    server_key='YOUR_SERVER_KEY',
    client_key='YOUR_CLIENT_KEY'
)
status_response = api_client.transactions.notification(mock_notification)

order_id = status_response['order_id']
transaction_status = status_response['transaction_status']
fraud_status = status_response['fraud_status']

print('Transaction notification received. Order ID: {0}. Transaction status: {1}. Fraud status: {3}'.format(order_id,
    transaction_status,
    fraud_status))

# Sample transaction_status handling logic

if transaction_status == 'capture':
  if fraud_status == 'challenge':
    # TODO set transaction status on your databaase to 'challenge'
  else if fraud_status == 'accept':
    # TODO set transaction status on your databaase to 'success'
else if transaction_status == 'cancel' or 
  transaction_status == 'deny' or 
  transaction_status == 'expire':
  # TODO set transaction status on your databaase to 'failure'
else if transaction_status == '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) 
status_response = api_client.transactions.status('YOUR_ORDER_ID OR TRANSACTION_ID')

Get Status B2B

# get transaction status of VA b2b transaction
statusb2b_response = api_client.transactions.statusb2b('YOUR_ORDER_ID OR TRANSACTION_ID')

Approve Transaction

# approve a credit card transaction with `challenge` fraud status
approve_response = api_client.transactions.approve('YOUR_ORDER_ID OR TRANSACTION_ID')

Deny Transaction

# deny a credit card transaction with `challenge` fraud status
deny_response = api_client.transactions.deny('YOUR_ORDER_ID OR TRANSACTION_ID')

Cancel Transaction

# cancel a credit card transaction or pending transaction
cancel_response = api_client.transactions.cancel('YOUR_ORDER_ID OR TRANSACTION_ID')

Expire Transaction

# expire a pending transaction
expire_response = api_client.transactions.expire('YOUR_ORDER_ID OR TRANSACTION_ID')

Refund Transaction

# refund a transaction (not all payment channel allow refund via API)
param = {
    "amount": 5000,
    "reason": "Item out of stock"
}
refund_response = api_client.transactions.refund('YOUR_ORDER_ID OR TRANSACTION_ID',param)

3. Examples

Examples are available on /examples folder. There are:

Get help

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