This library contains methods that make it easy to consume Mpesa Api.

import 'package:dart_mpesa/dart_mpesa.dart';

main() {
  var mpesa = Mpesa(
    shortCode: "",
    consumerKey: "",
    consumerSecret: "",
    initiatorName: "",
    securityCredential: "",
    passKey: "",
    identifierType: IdentifierType.OrganizationShortCode, // Type of organization, options, OrganizationShortCode, TillNumber, OrganizationShortCode
    applicationMode: ApplicationMode.test
  );
}

  MpesaResponse _res = await mpesa.lipanaMpesaOnline(
    phoneNumber: "",
    amount: 0,
    accountReference: "",
    transactionDesc: "",
    callBackURL: "", 
  );

  print(_res.statusCode);
  print(_res.rawResponse);
  print(_res.responseDescription);

  _res = await mpesa.b2bTransaction(
    shortCode: "",
    amount: 0,
    remarks: "",
    accountReference: "", // optional
    resultURL: "", 
    queueTimeOutURL: "",
    identifierType: IdentifierType.OrganizationShortCode, // options, OrganizationShortCode, TillNumber, OrganizationShortCode
    commandID: BbCommandId.BusinessToBusinessTransfer, // options, BusinessToBusinessTransfer, BusinessPayBill, BusinessBuyGoods, DisburseFundsToBusiness, MerchantToMerchantTransfer
  );

  _res = await mpesa.b2bBuyGoodsTransaction(
    shortCode: "",
    amount: 0,
    remarks: "",
    resultURL: "", 
    queueTimeOutURL: "",
  );

  try{
    _res = await mpesa.fetchToken;
    print(_res['token'])
  }catch(e){
    print(e)
  }