Main

ConsoleApp1/ConsoleApp1.csproj

@@ -34,8 +34,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Newtonsoft.Json, Version=11.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>..\packages\Newtonsoft.Json.11.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>..\packages\Newtonsoft.Json.13.0.4\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />

ConsoleApp1/packages.config

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.4" targetFramework="net48" />
 </packages>

PayStackDotNetSDK.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 15
-VisualStudioVersion = 15.0.27703.2000
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36401.2 d17.14
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PayStackDotNetSDK", "PayStackDotNetSDK\PayStackDotNetSDK.csproj", "{BA52829E-D8D3-47F6-B1F8-07582AE28A62}"
 EndProject
@@ -14,8 +14,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tester.Console", "Tester.Console\Tester.Console.csproj", "{AD1C115C-81CD-47DC-A00A-254D3C0BC50C}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tester.Web", "Tester.Web\Tester.Web.csproj", "{7350CA94-174B-4A46-9233-F0FE35899CBD}"
-EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleApp1", "ConsoleApp1\ConsoleApp1.csproj", "{679344EB-BD1B-4302-B002-0A3F6FD792C6}"
 EndProject
 Global
@@ -32,10 +30,6 @@ Global
 		{AD1C115C-81CD-47DC-A00A-254D3C0BC50C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{AD1C115C-81CD-47DC-A00A-254D3C0BC50C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{AD1C115C-81CD-47DC-A00A-254D3C0BC50C}.Release|Any CPU.Build.0 = Release|Any CPU
-		{7350CA94-174B-4A46-9233-F0FE35899CBD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{7350CA94-174B-4A46-9233-F0FE35899CBD}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{7350CA94-174B-4A46-9233-F0FE35899CBD}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{7350CA94-174B-4A46-9233-F0FE35899CBD}.Release|Any CPU.Build.0 = Release|Any CPU
 		{679344EB-BD1B-4302-B002-0A3F6FD792C6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{679344EB-BD1B-4302-B002-0A3F6FD792C6}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{679344EB-BD1B-4302-B002-0A3F6FD792C6}.Release|Any CPU.ActiveCfg = Release|Any CPU

PayStackDotNetSDK/BuilderHelper/InitializeTransactionBuilder.cs

@@ -0,0 +1,58 @@
+using PayStackDotNetSDK.Models;
+using PayStackDotNetSDK.Models.Transactions;
+using System;
+
+namespace PayStackDotNetSDK.Builders
+{
+    public class InitializeTransactionBuilder
+    {
+        private readonly TransactionRequestModel _request = new TransactionRequestModel();
+
+        public InitializeTransactionBuilder WithEmail(string email)
+        {
+            _request.email = email;
+            return this;
+        }
+
+        public InitializeTransactionBuilder WithAmount(int amount)
+        {
+            _request.amount = amount;
+            return this;
+        }
+
+        public InitializeTransactionBuilder WithReference(string reference)
+        {
+            _request.reference = reference;
+            return this;
+        }
+
+        public InitializeTransactionBuilder WithCurrency(string currency)
+        {
+            _request.currency = currency;
+            return this;
+        }
+
+        public InitializeTransactionBuilder WithCallbackUrl(string callbackUrl)
+        {
+            _request.callback_url = callbackUrl;
+            return this;
+        }
+
+        public InitializeTransactionBuilder WithMetadata(Action<MetadataBuilder> metadataBuilderAction)
+        {
+            var builder = new MetadataBuilder();
+            metadataBuilderAction(builder);
+            _request.metadata = builder.Build();
+            return this;
+        }
+
+        public TransactionRequestModel Build()
+        {
+            if (string.IsNullOrWhiteSpace(_request.email))
+                throw new InvalidOperationException("Email is required for a Paystack transaction.");
+            if (_request.amount <= 0)
+                throw new InvalidOperationException("Amount must be greater than zero.");
+            return _request;
+        }
+    }
+}

PayStackDotNetSDK/BuilderHelper/MetadataBuilder.cs

@@ -0,0 +1,26 @@
+using System.Collections.Generic;
+using PayStackDotNetSDK.Models;
+
+namespace PayStackDotNetSDK.Builders
+{
+    public class MetadataBuilder
+    {
+        private readonly Metadata _metadata = new Metadata();
+
+        public MetadataBuilder AddField(string key, object value)
+        {
+            _metadata.AdditionalData[key] = Newtonsoft.Json.Linq.JToken.FromObject(value);
+            return this;
+        }
+
+        public MetadataBuilder AddCustomField(string displayName, string variableName, string value)
+        {
+            // ✅ Correct usage of constructor
+            _metadata.CustomFields.Add(new CustomField(displayName, variableName, value));
+            return this;
+        }
+
+        public Metadata Build() => _metadata;
+    }
+
+}

PayStackDotNetSDK/Models/Metadata.cs

@@ -1,16 +1,38 @@
-using System.Collections.Generic;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using System.Collections.Generic;
 
 namespace PayStackDotNetSDK.Models
 {
     public class Metadata
     {
-        public List<CustomField> custom_fields { get; set; } = null;
+        [JsonProperty("custom_fields")]
+        public List<CustomField> CustomFields { get; set; } = new List<CustomField>();
 
+        [JsonExtensionData]
+        public IDictionary<string, JToken> AdditionalData { get; set; } = new Dictionary<string, JToken>();
     }
+
     public class CustomField
     {
-        public string display_name { get; set; } = null;
-        public string variable_name { get; set; } = null;
-        public string value { get; set; } = null;
+        [JsonProperty("display_name")]
+        public string DisplayName { get; set; }
+
+        [JsonProperty("variable_name")]
+        public string VariableName { get; set; }
+
+        [JsonProperty("value")]
+        public string Value { get; set; }
+        // ✅ Add this constructor
+
+        //public CustomField() { }
+
+        public CustomField(string displayName, string variableName, string value)
+        {
+            DisplayName = displayName;
+            VariableName = variableName;
+            Value = value;
+        }
+
     }
 }

PayStackDotNetSDK/Models/Paystack.Net.Models.csproj

@@ -1,61 +1,18 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{F12518F2-AEEE-4A9B-89BF-D7E1D4E04209}</ProjectGuid>
-    <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>PayStackDotNetSDK.Models</RootNamespace>
-    <AssemblyName>PayStackDotNetSDK.Models</AssemblyName>
-    <TargetFrameworkVersion>v4.6</TargetFrameworkVersion>
-    <FileAlignment>512</FileAlignment>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Net.Http" />
-    <Reference Include="System.Xml" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="Authorizations\RequestAuthorizationModel.cs" />
-    <Compile Include="BankListResponseModel.cs" />
-    <Compile Include="Customers\CustomerCreationResponse.cs" />
-    <Compile Include="Exports\ExportResponseModel.cs" />
-    <Compile Include="PaymentInitalizationResponseModel.cs" />
-    <Compile Include="Plans\PlansModel.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="Subaccounts\CreateSubAccount\SubAccountModel.cs" />
-    <Compile Include="Subscription\SubscriptionModel.cs" />
-    <Compile Include="TransactionInitializationRequestModel.cs" />
-    <Compile Include="TransactionListViewModel.cs" />
-    <Compile Include="TransactionResponseModel.cs" />
-    <Compile Include="Transfers\Initiation\TransferInitiationModel.cs" />
-    <Compile Include="Transfers\Recipient\TransferRecipientModel.cs" />
-    <Compile Include="Transfers\TransferDetails\TransferDetailsModel.cs" />
-    <Compile Include="TransTotal\TransactionTotal.cs" />
-  </ItemGroup>
-  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-</Project>
+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<TargetFramework>netstandard2.0</TargetFramework>
+		<RootNamespace>PayStackDotNetSDK.Models</RootNamespace>
+		<AssemblyName>PayStackDotNetSDK.Models</AssemblyName>
+		<LangVersion>latest</LangVersion>
+
+		<!-- Optional: Generate XML docs or enable nullable types -->
+		<GenerateDocumentationFile>true</GenerateDocumentationFile>
+		<Nullable>enable</Nullable>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+	</ItemGroup>
+
+</Project>

PayStackDotNetSDK/Models/Refunds/CreateRefundRequestModel.cs

@@ -11,7 +11,7 @@ public class CreateRefundRequestModel
         /// <summary>
         /// amount(optional) : How much in kobo to be refunded to the customer.Amount is optional(defaults to original transaction amount) and cannot be more than the original transaction amount.
         /// </summary>
-        public int amount { get; set; }
+        public long amount { get; set; }
         /// <summary>
         /// currency: Three-letter ISO currency
         /// </summary>

PayStackDotNetSDK/Models/Refunds/CreateRefundResponseModel.cs

@@ -6,26 +6,7 @@ public class CreateRefundResponseModel
     {
         public bool status { get; set; }
         public string message { get; set; }
-        public Data data { get; set; }
-    }
-    public class Data
-    {
-        public int dispute { get; set; }
-        public int transaction { get; set; }
-        public string currency { get; set; }
-        public int amount { get; set; }
-        public string channel { get; set; }
-        public string customer_note { get; set; }
-        public string merchant_note { get; set; }
-        public int integration { get; set; }
-        public string domain { get; set; }
-        public string status { get; set; }
-        public string refunded_by { get; set; }
-        public DateTime refunded_at { get; set; }
-        public DateTime expected_at { get; set; }
-        public bool fully_deducted { get; set; }
-        public int id { get; set; }
-        public DateTime createdAt { get; set; }
-        public DateTime updatedAt { get; set; }
+        public RefundData data { get; set; }
     }
+
 }

PayStackDotNetSDK/Models/Refunds/FetchRefundResponseModel.cs

@@ -8,29 +8,5 @@ public class FetchRefundResponseModel
         public string message { get; set; }
         public RefundData data { get; set; }
     }
-    public class RefundData
-    {
-        public int integration { get; set; }
-        public int transaction { get; set; }
-        public int dispute { get; set; }
-        public object settlement { get; set; }
-        public string domain { get; set; }
-        public int amount { get; set; }
-        public object deducted_amount { get; set; }
-        public bool fully_deducted { get; set; }
-        public string currency { get; set; }
-        public string channel { get; set; }
-        public string status { get; set; }
-        public string refunded_by { get; set; }
-        public DateTime refunded_at { get; set; }
-        public DateTime expected_at { get; set; }
-        public string customer_note { get; set; }
-        public string merchant_note { get; set; }
-        public object bank_reference { get; set; }
-        public int id { get; set; }
-        public DateTime createdAt { get; set; }
-        public DateTime updatedAt { get; set; }
-    }
-
 
 }

PayStackDotNetSDK/Models/Refunds/ListRefundResponseModel.cs

@@ -7,41 +7,36 @@ public class ListRefundResponseModel
     {
         public bool status { get; set; }
         public string message { get; set; }
-        public List<Refund> data { get; set; }
-        public Meta meta { get; set; }
+        public List<RefundListData> data { get; set; }
+        public RefundListMeta meta { get; set; }
     }
-    public class Refund
+
+    public class RefundListData
     {
-        public int integration { get; set; }
+        public long integration { get; set; }
+        public long transaction { get; set; }
+        public object dispute { get; set; }
+        public object settlement { get; set; }
+        public long id { get; set; }
         public string domain { get; set; }
-        public int transaction { get; set; }
-        public int dispute { get; set; }
-        public int amount { get; set; }
         public string currency { get; set; }
-        public string channel { get; set; }
-        public object deducted_amount { get; set; }
-        public int fully_deducted { get; set; }
+        public long amount { get; set; }
         public string status { get; set; }
+        public object refunded_at { get; set; }
         public string refunded_by { get; set; }
-        public DateTime refunded_at { get; set; }
-        public DateTime expected_at { get; set; }
-        public object settlement { get; set; }
         public string customer_note { get; set; }
         public string merchant_note { get; set; }
-        public object bank_reference { get; set; }
-        public int id { get; set; }
-        public DateTime created_at { get; set; }
-        public DateTime updated_at { get; set; }
-        public int is_deleted { get; set; }
+        public int deducted_amount { get; set; }
+        public bool fully_deducted { get; set; }
+        public DateTime createdAt { get; set; }
     }
 
-    public class Meta
+    public class RefundListMeta
     {
         public int total { get; set; }
         public int skipped { get; set; }
         public int perPage { get; set; }
         public int page { get; set; }
         public int pageCount { get; set; }
     }
-
 }