Paystack Checkout Android

Requirements

• Android 5.0+ (API 21+)
• AndroidX

Getting Started

Configuration

Add checkout-android to the dependencies in your app level build.gradle file

dependencies {
    implementation 'com.paystack.checkout:checkout-android:0.1.0-alpha06'
}

You should also add Java 8 support in your build.gradle:

android {
    // ... Other configuration code
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    // For kotlin codebases, include
    kotlinOptions {
         jvmTarget = "1.8"
    }
}

Define a public key

Set a public key in your app's manifest

<meta-data
    android:name="com.paystack.checkout.PublicKey"
    android:value="pk_paystack_public_key"/>

Initiate a charge

In Kotlin

val checkoutResultListener = object : CheckoutResultListener {
    override fun onSuccess(transaction: Transaction) {
        // Executed when transaction is successful
    }

    override fun onError(exception: Throwable) {
        // Executed when an error occurs
    }

    override fun onCancelled() {
        // Executed when the user cancels the payment process
    }
}
val email = "example@example.com"
val amount = 10000L
val currency = "NGN"
PaystackCheckout.Builder(activity, email, amount, currency)
    .build()
    .charge(checkoutResultListener)

In Java

CheckoutResultListener resultListener = new CheckoutResultListener() {
    @Override
    public void onSuccess(@NonNull Transaction transaction) {
        // Executed when transaction is successful
    }

    @Override
    public void onError(@NonNull Throwable exception) {
        // Executed when an error occurs
    }

    @Override
    public void onCancelled() {
        // Executed when the user cancels the payment process
    }
};
String email = "example@example.com";
long amount = 10000;
String currency = "NGN";
PaystackCheckout checkout = new PaystackCheckout.Builder(activity, email,amount, currency)
    .build();
checkout.charge(resultListener);

Parameters

When initiating a charge, the email, amount and currency parameters are mandatory. There are also optional parameters that can be used to further customize your request:

General

Param	Type	Example	Description
reference	String	.reference("ODD_6647jdhdi6363")	Unique case sensitive transaction reference. Only alphanumeric characters and these characters ( -, . , = ) are allowed. If you do not pass this parameter, Paystack will generate a unique reference for you
channels	List	.channel(PaymentChannel.card, PaymentChannel.eft)	A list of payment channels to control what channels you want to make available to the user to make a payment with. Available channels include; ['card', 'bank', 'ussd', 'qr', 'mobile_money', 'bank_transfer', 'eft']. You can access the channels from the PaymentChannel enum.
label	String	.label("Diego Tequilla")	String that replaces the customer email as shown on the checkout form
metadata	String	.metadata("...")	Object containing any extra information you want recorded with the transaction. You can learn more about metadata on our documentation.

The metadata can be crafted using the string literals as follows:

In Kotlin:

val metadata = """{
        "age": "50",
        "custom_fields": [
            {
                "display_name": "Brand",
                "variable_name": "brand",
                "value": "Bongo Kivu"
            }
        ]
    }""".trimIndent()

In Java:

String metadata = "{" +
        "\"age\":\"50\"," +
        "\"custom_fields\": [" +
            "{" +
                "\"display_name\": \"Brand\"," +
                "\"variable_name\": \"brand\"," +
                "\"value\": \"Bongo Kivu\"" +
            "}" +
        "]" +
    "}";

Single Split

Param	Type	Example	Description
subAccount	String	.subAccount("ACCT_8f4s1eq7ml6rlzj")	The code for the subaccount that owns the payment
transactionCharge	Long	.transactionCharge(10000)	A flat fee to charge the subaccount for this transaction (in kobo, pesewas or cents). This overrides the split percentage set when the subaccount was created. Ideally, you will need to use this if you are splitting in flat rates (since subaccount creation only allows for percentage split).
bearer	String	.bearer("subaccount")	Decide who will bear Paystack transaction charges between account and subaccount. Defaults to account.

Multi Split

Param	Type	Example	Description
splitCode	String	.splitCode("SPL_98WF13Eb3w")	The split code of the transaction split.

Subscription

Param	Type	Example	Description
plan	String	.plan("PLN_xxxxxxxx")	Plan code generated from creating a plan. This makes the payment become a subscription payment.
quantity	Long	.quantity(2)	Used to apply a multiple to the amount returned by the plan code above.

Security

If you believe you’ve discovered a bug, kindly get in in touch with the Paystack Security team at security@paystack.com. We will promptly respond to your report. We request that you not publicly disclose the issue until it's been addressed by Paystack.