Bohudur Android SDK

Developer-friendly Android payment SDK for Bohudur Payment Gateway.
Easily create, execute, and query payments inside Android apps with minimal code.

Features

• Simple builder-style API
• Secure API key authentication
• Hosted checkout flow
• Execute & query payments
• Query payment status anytime
• Webhook support (server-side)
• Volley-based networking
• Java & Android Studio ready

Requirements

• Minimum SDK: 21+
• Target SDK: 28+
• Java: 8+
• Internet permission

<uses-permission android:name="android.permission.INTERNET"/>

Installation

Step 1: Add JitPack

settings.gradle

dependencyResolutionManagement {
    repositories {
        google()
        mavenCentral()
        maven { url 'https://jitpack.io' }
    }
}

Step 2: Add Dependency

dependencies {
    implementation 'com.github.bohudur:bohudur-android-sdk:1.2.2'
}

Initialization

Java

import bohudur.payment.sdk.Bohudur;

String API_KEY = "YOUR_API_KEY";
Bohudur bohudur = new Bohudur(this, API_KEY);

Kotlin

import bohudur.payment.sdk.Bohudur

val apiKey = "YOUR_API_KEY"
val bohudur = Bohudur(this, apiKey)

Create a Payment

Java

bohudur.setFullName("Jane Doe");
bohudur.setEmail("user@gmail.com");
bohudur.setAmount(10);
bohudur.setReturnType(Bohudur.Type.GET());

bohudur.request(new PaymentResponse() {
    @Override
    public void onPaymentSuccess(SuccessResponse response) {
        // Payment executed successfully
    }

    @Override
    public void onPaymentCancelled(FailureResponse response) {
        // Payment cancelled or failed
    }
});

Kotlin

bohudur.setFullName("Jane Doe")
bohudur.setEmail("user@gmail.com")
bohudur.setAmount(10.0)
bohudur.setReturnType(Bohudur.Type.GET())

bohudur.request(
    onPaymentSuccess = { response ->
        println("Payment executed successfully: ${response.amount}")
    },
    onPaymentCancelled = { failure ->
        println("Payment failed: ${failure.message}")
    }
)

Lambda Expression

Java

bohudur.request(response -> {
    // onPaymentSuccess
    System.out.println("Success: " + response.getAmount());
}, failure -> {
    // onPaymentCancelled
    System.out.println("Failed: " + failure.getMessage());
});

Kotlin

bohudur.request(
    onPaymentSuccess = { response ->
        println("Success: ${response.amount}")
    },
    onPaymentCancelled = { failure ->
        println("Failed: ${failure.message}")
    }
)

What Happens Internally

• Payment session is created
• Hosted checkout page is opened
• User completes or cancels payment
• SDK executes payment automatically
• Callback returns success or failure

Webhooks (Server-Side)

Java

bohudur.setWebhookSuccessUrl("https://example.com/success.php")
bohudur.setWebhookCancelUrl("https://example.com/cancel.php");

Kotlin

bohudur.setWebhookSuccessUrl("https://example.com/success.php")
bohudur.setWebhookCancelUrl("https://example.com/cancel.php")

Webhook payloads are sent via POST (JSON). Always verify webhook data using the Query API.

Metadata

To attach any extra data to the payment, use metadata. You can add as many key-value pairs as needed.

Java

bohudur.addMetadata("order_id", "ORD-1001");
bohudur.addMetadata("user_id", 5541);
bohudur.addMetadata("platform", "android");

Kotlin

bohudur.addMetadata("order_id", "ORD-1001")
bohudur.addMetadata("user_id", 5541)
bohudur.addMetadata("platform", "android")

Success Response

Java

public void onPaymentSuccess(SuccessResponse response) {
    response.getAmount();
    response.getEmail();
    response.getPaymentCurrency();
    response.getStatus(); // EXECUTED
}

Kotlin

fun onPaymentSuccess(response: SuccessResponse) {
    println(response.amount)
    println(response.email)
    println(response.paymentCurrency)
    println(response.status) // EXECUTED
}

Available Getters

Method	Description
getFullName()	Customer name
getEmail()	Customer email
getAmount()	Original amount
getConvertedAmount()	Converted amount
getTotalAmount()	Total charged
getTransactionFee()	Transaction fee
getDefaultCurrency()	Account currency
getPaymentCurrency()	Paid currency
getCurrencyValue()	Conversion rate
getCreatedTime()	Creation time
getPaymentTime()	Payment time
getReceipt()	Receipt Download URL
getPaymentInfo()	Gateway info
getMetadata()	Custom metadata
getStatus()	EXECUTED

Payment Info By Gateways

Bkash

{
    "payment_info": {
        "id": 1,
        "gateway": "bkash",
        "method": "Send Money",
        "number": "01XXXXXXXXX",
        "amount": 100,
        "trx": "TRX123ABC456",
        "time": "01/01/2026 12:00",
        "m0": "Bkash Send Money"
    }
}

Nagad

{
    "payment_info": {
        "id": 1,
        "gateway": "nagad",
        "method": "Send Money",
        "number": "01XXXXXXXXX",
        "amount": 100,
        "trx": "TRX123ABC456",
        "time": "01/01/2026 12:00",
        "m0": "Nagad Send Money"
    }
}

Rocket

{
    "payment_info": {
        "id": 1,
        "gateway": "rocket",
        "method": "Send Money",
        "number": "01XXXXXXXXX",
        "amount": 100,
        "trx": "TRX123ABC456",
        "time": "01/01/2026 12:00",
        "m0": "Rocket Send Money"
    }
}

Upay

{
    "payment_info": {
        "id": 1,
        "gateway": "upay",
        "method": "Send Money",
        "number": "01XXXXXXXXX",
        "amount": 100,
        "trx": "TRX123ABC456",
        "time": "01/01/2026 12:00",
        "m0": "Upay Send Money"
    }
}

mCash

{
    "payment_info": {
        "id": 1,
        "gateway": "mcash",
        "method": "Send Money",
        "number": "01XXXXXXXXX",
        "amount": 100,
        "trx": "TRX123ABC456",
        "time": "01/01/2026 12:00",
        "m0": "mCash Send Money"
    }
}

Bkash Merchant

{
    "paymentID": "TRX_PAYMENT_ID_EXAMPLE",
    "trxID": "TRX123ABC456",
    "transactionStatus": "Completed",
    "amount": "100",
    "currency": "BDT",
    "intent": "sale",
    "paymentExecuteTime": "2026-01-01T12:00:00 GMT+0600",
    "merchantInvoiceNumber": "invoice_demo_12345",
    "payerType": "Customer",
    "payerReference": "CUSTOMER_REF",
    "customerMsisdn": "01XXXXXXXXX",
    "payerAccount": "01XXXXXXXXX",
    "maxRefundableAmount": "100",
    "statusCode": "0000",
    "statusMessage": "Successful",
    "m0": "Bkash Merchant"
}

SSLCommerz

{
    "status": "VALID",
    "tran_date": "2026-01-01 12:00:00",
    "tran_id": "SSLCZ_DEMO_TRANSACTION",
    "val_id": "VALIDATION_ID_EXAMPLE",
    "amount": "100.00",
    "store_amount": "97.50",
    "currency": "BDT",
    "bank_tran_id": "BANK_TRANSACTION_ID",
    "card_type": "NAGAD-Nagad",
    "card_no": "",
    "card_issuer": "Nagad",
    "card_brand": "MOBILEBANKING",
    "card_category": "MOBILE",
    "card_sub_brand": "",
    "card_issuer_country": "Bangladesh",
    "card_issuer_country_code": "BD",
    "currency_type": "BDT",
    "currency_amount": "100.00",
    "currency_rate": "1.0000",
    "base_fair": "0.00",
    "value_a": "",
    "value_b": "",
    "value_c": "",
    "value_d": "",
    "emi_instalment": "0",
    "emi_amount": "0.00",
    "emi_description": "",
    "emi_issuer": "Nagad",
    "account_details": "",
    "risk_title": "Safe",
    "risk_level": "0",
    "discount_percentage": "0",
    "discount_amount": "0.00",
    "discount_remarks": "",
    "APIConnect": "DONE",
    "validated_on": "2026-01-01 12:00:10",
    "gw_version": "",
    "offer_avail": 1,
    "card_ref_id": "CARD_REFERENCE_ID_EXAMPLE",
    "isTokeizeSuccess": 0,
    "campaign_code": "",
    "m0": "SSLCommerz"
}

Stripe

{
    "id": "pi_demo_payment_intent",
    "object": "payment_intent",
    "amount": 10000,
    "amount_capturable": 0,
    "amount_details": {
        "tip": []
    },
    "amount_received": 10000,
    "application": null,
    "application_fee_amount": null,
    "automatic_payment_methods": null,
    "canceled_at": null,
    "cancellation_reason": null,
    "capture_method": "automatic_async",
    "client_secret": "pi_demo_payment_intent_secret_example",
    "confirmation_method": "automatic",
    "created": 1767225600,
    "currency": "usd",
    "customer": null,
    "customer_account": null,
    "description": "Demo Payment",
    "excluded_payment_method_types": null,
    "last_payment_error": null,
    "latest_charge": "ch_demo_charge_id",
    "livemode": false,
    "managed_payments": {
        "enabled": false
    },
    "metadata": [],
    "next_action": null,
    "on_behalf_of": null,
    "payment_details": {
        "customer_reference": null,
        "order_reference": "ORDER_REFERENCE_EXAMPLE"
    },
    "payment_method": "pm_demo_payment_method",
    "payment_method_configuration_details": null,
    "payment_method_options": {
        "card": {
            "installments": null,
            "mandate_options": null,
            "network": null,
            "request_three_d_secure": "automatic"
        }
    },
    "payment_method_types": [
        "card"
    ],
    "presentment_details": {
        "presentment_amount": 12000,
        "presentment_currency": "bdt"
    },
    "processing": null,
    "receipt_email": "customer@example.com",
    "review": null,
    "setup_future_usage": null,
    "shared_payment_granted_token": null,
    "shipping": null,
    "source": null,
    "statement_descriptor": null,
    "statement_descriptor_suffix": null,
    "status": "succeeded",
    "transfer_data": null,
    "transfer_group": null,
    "m0": "Stripe"
}

Binance

{
    "uid": 123456789,
    "counterpartyId": 987654321,
    "orderId": "ORDER_ID_EXAMPLE",
    "orderType": "CRYPTO_BOX",
    "transactionId": "TRANSACTION_ID_EXAMPLE",
    "transactionTime": 1767225600000,
    "amount": "10.00",
    "currency": "USDT",
    "walletType": 1,
    "walletTypes": [
        "1"
    ],
    "fundsDetail": [
        {
            "currency": "USDT",
            "amount": "10.00"
            "walletAssetCost": {
                "1": "10.00"
            }
        }
    ],
    "payerInfo": {
        "name": "John Doe",
        "type": "USER",
        "email": "customer@example.com",
        "countryCode": 880,
        "phoneNumber": "01XXXXXXXXX",
        "mobileCode": "BD",
        "unmaskData": false
    },
    "receiverInfo": {
        "binanceId": 123456789,
        "accountId": 987654321,
        "unmaskData": false
    },
    "totalPaymentFee": "0",
    "m0": "Binance Personal"
}

Failure Response

Java

public void onPaymentCancelled(FailureResponse response) {
    response.getMessage();
    response.getErrorCode();
    response.getStatus(); // failed
}

Kotlin

fun onPaymentCancelled(response: FailureResponse) {
    println(response.message)
    println(response.errorCode)
    println(response.status) // failed
}

Failure Fields

Method	Description
getMessage()	Error message
getErrorCode()	API error code
getStatus()	failed

Query Payment Status

Java

bohudur.query("PAYMENT_KEY", new QueryResponse() {
    @Override
    public void onPaymentFound(SuccessResponse response) {
        // PENDING / COMPLETED / EXECUTED
    }

    @Override
    public void onPaymentError(FailureResponse response) {
        // Invalid or not found
    }
});

kotlin

bohudur.query("PAYMENT_KEY",
    onPaymentFound = { response ->
        println("Payment status: ${response.status}")
    },
    onPaymentError = { failure ->
        println("Query failed: ${failure.message}")
    }
)

Lambda Expression

Java

Java

bohudur.query("PAYMENT_KEY",
    success -> {
        System.out.println("Payment status: " + success.getStatus());
    },
    failure -> {
        System.out.println("Query failed: " + failure.getMessage());
    }
);

Kotlin

bohudur.query("PAYMENT_KEY",
    onPaymentFound = { response ->
        println("Payment status: ${response.status}")
    },
    onPaymentError = { failure ->
        println("Query failed: ${failure.message}")
    }
)

Possible Status Values

Status	Meaning
PENDING	User hasn’t paid yet
COMPLETED	Payment done, not executed
EXECUTED	Payment finalized
CANCELLED	User cancelled

Error Codes

The SDK follows Bohudur API v2 error codes, including:

• 3000–3018 → Create payment errors
• 3050–3055 → Query errors
• 3100–3109 → Execute errors

Always handle failures gracefully.

Support

• Telegram: t.me/bohudur
• Facebook: Group
• YouTube: youtube.com/@bohudurpay