Python SDK Integration

Requirements

Python 3.5 or later

Installing Paytm's payment gateway SDK with pip

Install Python package by using the following command.

pip install paytm-pg

Note: Merchant Key is a secret key used for encryption and it should never be shared with anyone. And, you must generate separate API Keys for test and production environment.

Steps to generate API keys

1. Log into your Dashboard.
2. Select the environment (Test/Production) for which you want to generate the API key.
3. For Test mode, click Generate Key to generate key under Test API details tab.
4. For Production mode, activate your account here to generate Production API details.

Initialization

Merchant will initialize the mandatory parameters i.e. environment, mid, key, and website, after which the merchant can directly call SDK methods to call APIs of payment gateway.

# For Staging 
environment = LibraryConstants.STAGING_ENVIRONMENT

# For Production 
# environment = LibraryConstants.PRODUCTION_ENVIRONMENT

# Find your mid, key, website in your Paytm Dashboard at https://dashboard.paytm.com/next/apikeys
mid = "YOUR_MID_HERE"
key = "YOUR_KEY_HERE"
website = "YOUR_WEBSITE_NAME"
client_id = "YOUR_CLIENT_ID_HERE"

callbackUrl = "MERCANT_CALLBACK_URL"
MerchantProperty.set_callback_url(callbackUrl)

MerchantProperty.initialize(environment, mid, key, client_id, website)
 # If you want to add log file to your project, use below code
file_path = '/path/log/file.log'
mode = "w"
handler = logging.FileHandler(file_path, mode)
formatter = logging.Formatter("%(name)s: %(levelname)s: %(message)s")
handler.setFormatter(formatter)
MerchantProperty.set_log_handler(handler)
MerchantProperty.set_logging_disable(False)
MerchantProperty.set_logging_level(logging.DEBUG)

Note: Make sure the log file (/path/log/file.log) has write permission.

Payments

Create Transaction Token

channel_id = EChannelId.WEB
order_id = "UNIQUE_ORDER_ID"
txn_amount = Money(EnumCurrency.INR, "1.00")
user_info = UserInfo()
user_info.set_cust_id("CUSTOMER_ID")
user_info.set_address("CUSTOMER_ADDRESS")
user_info.set_email("CUSTOMER_EMAIL_ID")
user_info.set_first_name("CUSTOMER_FIRST_NAME")
user_info.set_last_name("CUSTOMER_LAST_NAME")
user_info.set_mobile("CUSTOMER_MOBILE_NO")
user_info.set_pincode("CUSTOMER_PINCODE")
payment_details = PaymentDetailsBuilder(channel_id, order_id, txn_amount, user_info).build()
response = Payment.createTxnToken(payment_details)

GetPaymentStatus

order_id = "YOUR_ORDER_ID"
read_timeout = 30*1000
payment_status_detail = PaymentStatusDetailBuilder(order_id).set_read_timeout(read_timeout).build()
response = Payment.getPaymentStatus(payment_status_detail)

Refunds

InitiateRefund

order_id = "YOUR_ORDER_ID"
ref_id = "REFERENCE_ID"
txn_id = "TRANSACTION_ID"
txn_type = "REFUND"
refund_amount = "1"
refund = RefundDetailBuilder(order_id, ref_id, txn_id, txn_type, refund_amount).set_sub_wallet_amount(sub_wallet_amount).set_extra_params_map(extra_params_map).build()
response = Refund.doRefund(refund)

GetRefundStatus

order_id = "ORDER_ID"
ref_id = "REFERENCE_ID"
refund_status_details = RefundStatusDetailBuilder().set_order_id(order_id).set_ref_id(ref_id).build()
response = Refund.getRefundStatus(refund_status_details)

SDK Method References

• AsyncRefundResponse
• AsyncRefundResponseBody
• BaseResponseBody
• ChildTransaction
• ExtraParameterMap
• InitiateTransactionResponse
• InitiateTransactionResponseBody
• Money
• NativePaymentStatusResponse
• NativePaymentStatusResponseBody
• NativeRefundStatusResponse
• NativeRefundStatusResponseBody
• PaymentDetail
• PaymentStatusDetail
• RefundDetail
• RefundStatusDetail
• ResponseHeader
• ResultInfo
• SDKResponse
• SecureResponseHeader
• Time
• UserInfo