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Payment

  1. The user is provided with wallet details to which payment must be made.
  2. The user makes a payment in their wallet app and receives a unique transaction number.
  3. Next, the user enters a unique transaction number in the payment window, after which the transaction is activated.
  4. Paykassma sends a postback to the merchant's side.
  5. Funds are credited to the user’s balance on the merchant platform.

Payment window integration (plugin)

Example of a link to open a Nagad payment window:

https://plugin.{server_URL}/?
label=label
&currency_code=BDT
&lang=lang
&wallet_type=nagad
&custom_transaction_id=custom_transaction_id
&fixed_amount=fixed_amount
&payment_url_success_id=2
&payment_url_pending_id=3
&payment_url_fail_id=1
&success_url=hash
&fail_url=hash
&pending_url=hash


Code Block
wallet_type=nagad
currency_code=BDT 
Available languages (lang): en, bn
Info

Pay attention to the description of the parameters payment_url_success_id / payment_url_fail_id/ payment_url_pending_id and success_url / fail_url / pending_url.
To use payment_url_success_id / payment_url_fail_id / payment_url_pending_id you need to send the URLs to Paykassma support and use the received IDs in the parameters.
To use success_url / fail_url / pending_url you must use hashing URLs ( For more details on hashing click here ).

For the description of all the plug-in parameters click here.

API integration

Creating payment

URL: https://api.{server_URL}/api/v1/transaction/create/nagad?secret={pluginapi_secret}

At this stage, we provide the details of the wallet to which the user must make a payment.

Request method:

POST

Format:
JSON

Parameters:

Name

Type

Required

Max Length

Description

currencystringyes3Currency code

label

string

yes

190

The unique identifier (ID) of the user who makes the payment.


Code Block
languagephp
themeDJango
titleRequest
{
  'currency': 'BDT', 
  'label': 'eligendi'
}


Code Block
languagephp
themeDJango
titleResponse Success:
{
    "status": "ok",
    "params": {
        "identifier": "324342342",
		"account_type": "personal" //Wallet account type. Possible values: agent - agent account, personal - personal account, merchant - merchant account
    }
}


Code Block
languagephp
themeDJango
titleResponse Fail
{
    'status': 'fail'
    'message': 'MESSAGE'
}

Payment type for Nagad account types

The user goes to the Nagad service and makes payments there depending on the account type of the provided wallet.

To a personal account: via "Send money":

To an agent account: via "Cash out":

To merchant account: via "Make Payment":

Activation request

URL: http://api.{server_URL}/api/v1/transaction/activate?secret={pluginapi_secret}

At this stage, the user sends the transaction number, which you send to Paykassma for activation.

Request method:
POST

Format:
JSON

Parameters:

Name

Type

Required

Max Length

Description

currency_codestringyes3Currency code.

wallet_type

string

yes

190

Method (PS).
labelstringyes190The unique identifier (ID) of the user who makes the payment.
key1stringyes190

Transaction ID received from the user.

Nagad - 10 symbol, letters and numbers.

amountfloatyes256Amount of transaction.
custom_transaction_id

string

yes190

Transaction ID in the Client's system. Must be unique.


Code Block
languagephp
themeDJango
titleRequest
{
    "currency_code": "BDT",
    "wallet_type": "nagad",
    "label": "55",
    "amount": 500,
    "key1": "AAD6DHSAVC",
    "custom_transaction_id": "123465477897"
}


Code Block
languagephp
themeDJango
titleResponse Success
{
    "status": "ok",
    "deposit": true,
    "deposit_amount": 500,
    "currency": {
        "code": "BDT",
        "symbol": "BDT"
    }
}


Code Block
languagephp
themeDJango
titleResponse Pending For suspect transactions
{
    "status": "pending",
    "message": "The deposit status check has been started. The operation may take longer than expected. Upon completion of the verification, the funds will be credited to your account"
}


Code Block
languagephp
themeDJango
titleResponse Possible Transaction Created
{
    "status": "possible_transaction_created",
    "message": "Transaction not found. Possible transaction created"
}


Code Block
languagephp
themeDJango
titleResponse Fail
{
    'status': 'fail'
    'message': 'MESSAGE'
}

Deposit postback

For the general documentation on post backs click here.

Example of a postback for a Nagad deposit

Code Block
languagephp
themeDJango
collapsetrue
{
    "signature": "56beb10ead1cd49475f1e16dd668a29fff3d4fb9",
    "wallet_type": "nagad",
    "amount": 600,
    "currency_code": "BDT",
    "label": "234",
    "converted_amount": {"USD": 5.5, "INR": 458, "EUR": 5.05, "IDR": 84206.21, "MYR": 25.57, "VND": 131151.4, "SGD": 7.47, "THB": 193.98, "NGN": 4209.6, "TRY": 148.98, "AED": 20.19, "CAD": 7.46, "AUD": 8.62, "BDT": 600, "AFN": 462.19, "ALL": 535.91, "AMD": 2119.43, "AOA": 4550.8, "ARS": 1918.56, "AWG": 9.89, "AZN": 9.34, "BAM": 9.87, "BBD": 10.99, "BGN": 9.9, "BHD": 2.07, "BIF": 15540.93, "BMD": 5.5, "BND": 7.45, "BOB": 37.88, "BRL": 27.32, "BSD": 5.5, "BTC": 0.00021022, "BTN": 455.77, "BWP": 74.58, "BYN": 13.84, "BZD": 11.05, "CDF": 13600.07, "CHF": 4.85, "CLF": 0.17, "CLP": 4753.93, "CNH": 40.18, "CNY": 40.02, "COP": 22536.26, "CRC": 2925.32, "CUC": 5.5, "CUP": 141.53, "CVE": 556.43, "CZK": 121.42, "DJF": 976.05, "DKK": 37.67, "DOP": 311.1, "DZD": 749.34, "EGP": 169.39, "ERN": 82.44, "ETB": 302.52, "FJD": 12.49, "FKP": 4.32, "GBP": 4.32, "GEL": 14.4, "GGP": 4.32, "GHS": 62.02, "GIP": 4.32, "GMD": 332.79, "GNF": 47102.19, "GTQ": 43.03, "GYD": 1148.02, "HKD": 43.04, "HNL": 134.9, "HRK": 38.09, "HTG": 745.53, "HUF": 1939.28, "ILS": 20.81, "IMP": 4.32, "IQD": 7179.8, "IRR": 232348.9, "ISK": 725.15, "JEP": 4.32, "JMD": 846.56, "JOD": 3.89, "JPY": 799.22, "KES": 782.37, "KGS": 485.14, "KHR": 22726.5, "KMF": 2487, "KPW": 4946.52, "KRW": 7365.69, "KWD": 1.69, "KYD": 4.57, "KZT": 2489.17, "LAK": 106934.11, "LBP": 82282.64, "LKR": 1770.53, "LRD": 1023.65, "LSL": 104.54, "LYD": 26.44, "MAD": 54.04, "MDL": 97.44, "MGA": 24817.48, "MKD": 310.95, "MMK": 11511.47, "MNT": 18961.65, "MOP": 44.22, "MRO": 0, "MRU": 207.84, "MUR": 249.7, "MVR": 84.5, "MWK": 5945.5, "MXN": 93.75, "MZN": 351.07, "NAD": 105.03, "NIO": 200.54, "NOK": 58.55, "NPR": 729.23, "NZD": 9.28, "OMR": 2.11, "PAB": 5.5, "PEN": 20.39, "PGK": 19.99, "PHP": 308.95, "PKR": 1628.08, "PLN": 22.54, "PYG": 39804.77, "QAR": 19.98, "RON": 25, "RSD": 591.72, "RUB": 517.19, "RWF": 6485.95, "SAR": 20.61, "SBD": 46, "SCR": 74.05, "SDG": 3303.17, "SEK": 60.26, "SHP": 4.32, "SLL": 115251.1, "SOS": 3121.61, "SRD": 209.95, "SSP": 715.93, "STD": 122463.67, "STN": 123.63, "SVC": 47.96, "SYP": 13809.19, "SZL": 104.52, "TJS": 60.22, "TMT": 19.24, "TND": 16.96, "TOP": 13.14, "TTD": 37.18, "TWD": 175.39, "TZS": 13731.9, "UAH": 202.45, "UGX": 20472.66, "UYU": 207.44, "UZS": 66206.92, "VEF": 0, "VES": 173.52, "VUV": 652.51, "WST": 14.94, "XAF": 3310.73, "XAG": 0.24, "XAU": 0, "XCD": 14.85, "XDR": 4.11, "XOF": 3310.73, "XPD": 0, "XPF": 602.29, "XPT": 0.01, "YER": 1375.96, "ZAR": 104.77, "ZMW": 106.21, "ZWL": 1769.75, "ETH": 0.00327932, "LTC": 0.0848166, "DOGE": 86.06973908, "DASH": 0.20288551, "BCH": 0.02900566, "ZEC": 0.21915246, "ETC": 0.35471858, "XRP": 10.16340924, "TRX": 72.59371303, "XLM": 41.90497255, "WAVES": 3.60487891, "USDT": 5.49542797, "USDTTRC20": 0, "USDT20": 0},
    "direction": "ingoing",
    "created_datetime": "2023-08-20 19:04:08",
    "access_key": "FQ9jMwrNSkFbyMNqYFf6Ed4xeKmjHK",
    "additional_data": [
        {
            "activated_datetime": "2023-08-20 22:04:07",
            "exchanger_identifier": null,
            "comment": "",
            "amount": "600",
            "currency_code": "BDT",
            "wallet_type": "nagad",
            "stockpiling_id": 1061,
            "transaction_id": "52AD1EA4",
            "transaction_type": 1,
            "plugin_custom_order_id": "1234",
            "withdrawal_id": null,
            "withdrawal_status": null,
            "account_number": "",
            "account_name": "",
            "account_email": "",
            "bank_details": {
                "bank_code": "",
                "branch_code": ""
            }
        }
    ]
}
Warning

The Paykassma server is waiting for a response in json {"status": "ok"} response code 200, otherwise, when receiving a different response, Paykassma will forward the postback with a certain frequency.
Repeated postbacks must also be answered with {"status":"ok"} response code 200.

Withdrawals for users

For the general documentation on the withdrawals of funds click here.

Withdrawal request

URL: https://api.{server_URL}/v2/withdrawal/create

Request method:

POST

Format:
JSON

Parameters:

Name

Type

Required

Description

withdrawal_idstring(1-36) yes Withdrawal ID, if the parameter is not passed, then the system generates withdrawal _id.
payment_systemstring yesPayment system.
amount

int


required

Additional requirements:

  1. amount >= The value of the set minimum value;
  2. amount <=The value of the set maximum value.
currency_codestring(3) yesCurrency code.

is_test

booleanyes

The is_test parameter possible values:

  • true - if Withdrawal is test;
  • false - if Withdrawal is real.

label

string(1-36)

yes

The unique identifier (ID) of the user who makes the payment.

account_emailstring yesEmail of the account holder.
account_numberstring 

yes

Nagad account number, 11 digts, example "01XXXXXXXXX".

signaturestringyesSignature generated with private_key.


Code Block
languagephp
themeDJango
titleRequest
{
"withdrawal_id": "af84c26f-931d-4c28-a30d-7b75e46b7685",
"payment_system": "nagad",
"amount": 6000,
"currency_code": "BDT",
"is_test": true,
"label": "c81594cc-e4b1-4ed5-914c-3817f2ccf13a",
"account_email": "[email protected]",
"account_number": "01642234663",
"signature": "98565041a9e126d325e864da0ba3d467f6ab0566"
}


Code Block
languagephp
themeDJango
titleResponse Success:
{
    "status": "ok",
}


Code Block
languagephp
themeDJango
titleResponse Fail
{
    'status': 'fail'
    'message': 'MESSAGE'
}

*If, when trying to create a withdrawal request, the amount of account balances in the currency of the request is less than the total amount of new and still incomplete applications, the error message"Insufficient balance" will be displayed (to configure this functionality, contact the TP Paykassma).

Code Block
languagephp
themeDJango
titleResponse Fail if the balance is insufficient
{
    "status": "fail",
    "message": {
        "withdrawals_sum_amount": [
            "Insufficient balance"
        ]
    }
}

Example of a postback for a Nagad withdrawal

Code Block
languagephp
themeDJango
collapsetrue
{
    "signature": "c36db9e7c7b45d429ee0ec5e4d2978cea1431287",
    "wallet_type": "nagad",
    "amount": 1000,
    "currency_code": "BDT",
    "label": "53928",
    "converted_amount": {"USD": 9.21, "INR": 759, "EUR": 8.41, "IDR": 139483.61, "MYR": 41.62, "VND": 218201.75, "SGD": 12.31, "THB": 316.46, "NGN": 7099.48, "TRY": 248.35, "AED": 33.83, "CAD": 12.24, "AUD": 13.94, "BDT": 1000, "AFN": 784.38, "ALL": 854.5, "AMD": 3556.83, "AOA": 7606.75, "ARS": 2535.36, "AWG": 16.6, "AZN": 15.66, "BAM": 16.4, "BBD": 18.42, "BGN": 16.41, "BHD": 3.47, "BIF": 26092.95, "BMD": 9.21, "BND": 12.29, "BOB": 63.67, "BRL": 43.91, "BSD": 9.21, "BTC": 0.00031913, "BTN": 758.01, "BWP": 121.08, "BYN": 23.26, "BZD": 18.57, "CDF": 22850.58, "CHF": 8.08, "CLF": 0.28, "CLP": 7755.8, "CNH": 66.11, "CNY": 66.02, "COP": 36235.92, "CRC": 4997.9, "CUC": 9.21, "CUP": 237.17, "CVE": 925.12, "CZK": 201.13, "DJF": 1640.56, "DKK": 62.65, "DOP": 518.32, "DZD": 1249.95, "EGP": 284.6, "ERN": 138.15, "ETB": 507.65, "FJD": 20.43, "FKP": 7.22, "GBP": 7.22, "GEL": 23.81, "GGP": 7.22, "GHS": 104.44, "GIP": 7.22, "GMD": 552.62, "GNF": 79269.03, "GTQ": 72.45, "GYD": 1927.74, "HKD": 71.79, "HNL": 226.67, "HRK": 63.34, "HTG": 1257.74, "HUF": 3275.81, "ILS": 33.61, "IMP": 7.22, "IQD": 12070.64, "IRR": 389595.44, "ISK": 1213.18, "JEP": 7.22, "JMD": 1423.49, "JOD": 6.52, "JPY": 1319.56, "KES": 1312.1, "KGS": 808.5, "KHR": 38055.79, "KMF": 4123.91, "KPW": 8289.26, "KRW": 11882.19, "KWD": 2.83, "KYD": 7.68, "KZT": 4095.55, "LAK": 178505.27, "LBP": 138302.79, "LKR": 2939.27, "LRD": 1716.8, "LSL": 163.89, "LYD": 44.04, "MAD": 90.75, "MDL": 164.7, "MGA": 41554.64, "MKD": 517.13, "MMK": 19349.5, "MNT": 31775.51, "MOP": 73.97, "MRO": 0, "MRU": 351.04, "MUR": 416.31, "MVR": 141.38, "MWK": 9706.21, "MXN": 154.95, "MZN": 586.93, "NAD": 164.5, "NIO": 337.1, "NOK": 94.28, "NPR": 1212.8, "NZD": 15, "OMR": 3.55, "PAB": 9.21, "PEN": 33.21, "PGK": 33.18, "PHP": 505.49, "PKR": 2649.6, "PLN": 37.25, "PYG": 67026.01, "QAR": 33.58, "RON": 41.46, "RSD": 986.28, "RUB": 848.04, "RWF": 10826.27, "SAR": 34.56, "SBD": 76.89, "SCR": 123.02, "SDG": 5539.99, "SEK": 98, "SHP": 7.22, "SLL": 193135.26, "SOS": 5246.97, "SRD": 355.72, "SSP": 1199.73, "STD": 205221.93, "STN": 205.35, "SVC": 80.62, "SYP": 23141.14, "SZL": 163.79, "TJS": 100.94, "TMT": 32.33, "TND": 28.37, "TOP": 21.65, "TTD": 62.58, "TWD": 291, "TZS": 22661.57, "UAH": 340.28, "UGX": 33433.14, "UYU": 347.09, "UZS": 107190.46, "VEF": 0, "VES": 271.47, "VUV": 1093.46, "WST": 25.04, "XAF": 5514.18, "XAG": 0.38, "XAU": 0, "XCD": 24.89, "XDR": 6.86, "XOF": 5514.18, "XPD": 0.01, "XPF": 1003.14, "XPT": 0.01, "YER": 2305.34, "ZAR": 166.99, "ZMW": 174.84, "ZWL": 2965.71, "ETH": 0.00502918, "LTC": 0.1013311, "DOGE": 119.5468743, "DASH": 0.29575773, "BCH": 0.03805325, "ZEC": 0.30984009, "ETC": 0.50497011, "XRP": 13.35802786, "TRX": 117.94919758, "XLM": 62.13565895, "WAVES": 4.85538562, "USDT": 9.2134184, "USDTTRC20": 0, "USDT20": 0},
    "direction": "outgoing",
    "created_datetime": "2023-08-01 13:30:03",
    "access_key": "FQ9jMwrNSkFbyMNqYFf6Ed4xeKmjHK",
    "additional_data": [
        {
            "activated_datetime": "",
            "exchanger_identifier": "",
            "comment": "1",
            "amount": "1000",
            "currency_code": "BDT",
            "wallet_type": "nagad",
            "stockpiling_id": null,
            "transaction_id": "",
            "transaction_type": null,
            "plugin_custom_order_id": "",
            "withdrawal_id": "10304",
            "withdrawal_status": 5,
            "account_number": "123456789013",
            "account_name": "",
            "account_email": "",
            "bank_details": {
                "bank_code": null,
                "branch_code": null
            }
        }
    ]
}
Warning

The Paykassma server is waiting for a response in json {"status": "ok"} response code 200, otherwise, when receiving a different response, Paykassma will forward the postback with a certain frequency.
Repeated postbacks must also be answered with {"status":"ok"} response code 200.

After processing the withdrawal, Paykassma will send a postback about the withdrawal result with status, signed with a signature.

Withdrawal statuses

1SUCCESSStatus for withdrawal when the withdrawal request has been successfully processed.
5FAILStatus for withdrawal when the withdrawal request was rejected.

Creating withdrawal request in Paykassma BO

To create a withdrawal request, you need to go to the Withdrawals page Payments  → Withdrawals and perform the following steps

  1. Press the button Add withdrawal request.



  2. Select payment system from list.



  3. Fill in the fields to create the request in the next window (the list of fields is standardized and not all fields are required. To create a request for a specific PS, you should fill in the required fields for this PS).
    Required fields for Nagad payout:
    - Label (user ID)
    - Amount
    - Currency code
    - Wallet recipient
    - Recipient's email



    4. After payment the withdrawal status will change.



    PayKassma does not send postback for withdrawals created manually.

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