This is fixed version of flutter_bkash package by Codeboxr team. All credit goes to Codeboxr team.

bKash(BD) Mobile Finance Payment Gateway Flutter Package

This is a Flutter package for bKash BD Payment Gateway. This package can be used in flutter project. We created this package while working for a project and thought to release for all so that it helps.

:warning: Please note that, you have to contact with bKash sales team for any kind of dev or production access keys or tokens. We don't provide any test account or access keys or don't contact us for such

How to use:

Depend on it, Run this command With Flutter:

$ flutter pub add bkash

This will add a line like this to your package's pubspec.yaml (and run an implicit flutter pub get):

dependencies:
    bkash: ^0.2.0

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more. Import it, Now in your Dart code, you can use:

import 'package:bkash/bkash.dart';

Features

• Pay using bKash without an agreement
• Create a bKash agreement for future payments
• Pay using bKash with an agreement

Usage

Official Link for API documentation and demo checkout

• bKash API Specifications
• bKash Payment Checkout Demo

Initialize the Bkash instance:

Sandbox

final Bkash = Bkash(logResponse: true);

If you want to see your request log make logResponse true while creating instance of bKash package.

Production

final Bkash = Bkash(
	credentials: BkashCredentials(
    username: "app_username",
    password: "app_password",
    appKey: "app_key",
    appSecret: "app_secret",
    isSandbox: false,
  ),
);

Make sure to replace the provided credentials with your own bKash sandbox or production credentials depending on your development environment.

Pay without Agreement

To make a payment without an agreement, use the pay method:

Request

final result = await Bkash.pay(
      context: context, // BuildContext context
      amount: 100.0, // amount as double
      merchantInvoiceNumber: "invoice123",
);

Response

BkashPaymentResponse(
	trxId: AFI60BAC94, 
	payerReference:  , 
	paymentId: TR0011fd4uZMS1687062024354, 
	customerMsisdn: 01877722345, 
	merchantInvoiceNumber: tranId, 
	_executeTime: 2023-06-18T10:22:31:623 GMT+0600
)

Create Agreement

To create a new agreement, use the createAgreement method:

Request

final result = await Bkash.createAgreement(context: context);

Response

BkashAgreementResponse(
	payerReference:  , 
	paymentId: TR0000RCHQGmX1687063332607, 
	customerMsisdn: 01877722345, 
	agreementId: TokenizedMerchant02P1AIJ7G1687063381235, 
	_executeTime: 2023-06-18T10:43:01:235 GMT+0600
)

Pay with Agreement

To make a payment with an existing agreement, use the payWithAgreement method:

Request

final result = await Bkash.payWithAgreement(
  context: context, // BuildContext context
  amount: 100.0, // type as double
  agreementId: "agreement123",
  merchantInvoiceNumber: "invoice123",
);

Response

BkashPaymentResponse(
	trxId: AFI60BAC94, 
	payerReference:  , 
	paymentId: TR0011fd4uZMS1687062024354, 
	customerMsisdn: 01877722345, 
	merchantInvoiceNumber: tranId, 
	_executeTime: 2023-06-18T10:22:31:623 GMT+0600
)

Error Handling

The methods mentioned above may throw a BkashFailure exception in case of an error. You can catch and handle the exception using a try-catch block:

try {
  // Make a payment or create an agreement
} on BkashFailure catch (e) {
  // Handle the error
  print(e.message);
}

Examples for see the /example folder.

Here is the example code link

Example Video Demo

Importance Notes

• Read the comments in the example of code
• See the documents and demo checkout bKash API Specifications, bKash Payment Checkout Demo