MainLibProj_Hrithik 2.3.0

MainLibProj_Hrithik

A powerful, production-ready .NET utility library providing FIX protocol trading, JWT RSA decryption, and Azure & document utilities — all in one package.

🧱 Installation

Install via NuGet Package Manager:

dotnet add package MainLibProj_Hrithik

Or using the Visual Studio Package Manager Console:

Install-Package MainLibProj_Hrithik

🆕 MainLibProj_Hrithik — JWT RSA decryption (Latest Release)

🚀 New in v2.3.0:

🔐 RSA Encrypted JWT Decryption & Decoding Support

You can now decrypt RSA-encrypted tokens, decode JWTs, and extract claims securely using a simple API—without handling low-level cryptography.

✨ JWT Feature Highlights

✅ Supports PKCS#1 RSA private keys

✅ Accepts Base64 encrypted tokens

✅ Automatically decrypts + decodes JWT

✅ Returns Raw JWT and Claims Dictionary

✅ Ideal for APIs, Azure Functions, APIM, Microservices

⚙️ How It Works

🔐 JWT RSA Decryption – Usage Example

using MainLibProj_Hrithik.Security;

var decryptor = new JwtRsaDecryptor( @"-----BEGIN RSA PRIVATE KEY----- MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQD... -----END RSA PRIVATE KEY-----" );

var result = decryptor.Decrypt("ENCRYPTED_BASE64_TOKEN");

Console.WriteLine(result.RawJwt);

foreach (var claim in result.Claims) { Console.WriteLine($"{claim.Key} = {claim.Value}"); }

🧠 Common Use Cases

Secure API-to-API authentication

Decrypting tokens from external identity providers

Azure Functions & APIM integrations

Enterprise microservice security flows

🆕 FIX Protocol Support

🚀 Introduced in v2.2.0

Integrated FIX protocol connectivity using QuickFIX/n directly into the library.

Send Equity, Fractional, Notional, Option, and Multi-Leg orders using simple JSON-based requests—no FIX expertise required.

⚙️ How FIX Support Works

Handles FIX session lifecycle

Manages authentication & heartbeats

Builds and parses FIX messages internally

Exposes a clean JSON-based API

🧩 Other Usage Example using MainLibProj_Hrithik.Fix; using System.Text.Json;

// Step 1: Configure FIX Connection var config = new FixConnectionConfig { // Required: Session identifiers SenderCompId = "", TargetCompId = "",

// Optional: Sub IDs
SenderSubId = "YOUR_SENDER_SUB_ID",
TargetSubId = "TARGET_SUB_ID",

// Optional: Authentication
Username = "YOUR_USERNAME",
Password = "YOUR_PASSWORD",

// Required: FIX configuration file path
FixSettingsFilePath = "path/to/fix.cfg",

// Certificate options
CertificatePath = "C:\\path\\to\\certificate.cer",
CertificatePassword = "cert_password_if_any",

// Connection settings
HostName = "your.fixserver.com",
Port = 12345,
ProxyPort = 15000,
HeartbeatInterval = 30,
ResponseTimeoutSeconds = 20

};

// Step 2: (Optional) Load certificate from Azure Key Vault var configWithKeyVault = new FixConnectionConfig { SenderCompId = "YOUR_SENDER_COMP_ID", TargetCompId = "FIX_TARGET_COMP_ID", Username = "YOUR_USERNAME", Password = "YOUR_PASSWORD", FixSettingsFilePath = "path/to/fix.cfg",

// Azure Key Vault integration
KeyVaultUrl = "https://your-keyvault.vault.azure.net/",
CertificateName = "fixcert"

};

// Step 3: Initialize FIX Gateway Client using var client = new FixJsonGatewayClient(config, null); await client.InitializeAsync();

// Step 4: Send Orders await SendEquityOrder(client); await SendFractionalOrder(client); await SendOptionOrder(client); await SendMultiLegOrder(client); await CancelOrder(client); await ReplaceOrder(client);

🧾 Example: Send an Equity Order static async Task SendEquityOrder(FixJsonGatewayClient client) { Console.WriteLine("\n=== Sending Equity Order ===");

var request = new FixJsonRequest
{
    MessageType = "NewOrderSingle",
    Fields = new Dictionary<string, object>
    {
        { "ClOrdID", "ORDER-" + Guid.NewGuid() },
        { "Symbol", "AAPL" },
        { "Side", "1" },          // Buy
        { "OrdType", "2" },       // Limit
        { "OrderQty", 100 },
        { "Price", 150.50 },
        { "Account", "YOUR_ACCOUNT_NUMBER" },
        { "TimeInForce", "0" },   // Day
        { "Currency", "USD" },
        { "SecurityType", "CS" }, // Common Stock
        { "ExDestination", "NASDAQ" },
        { "Rule80A", "I" }        // Individual
    }
};

var response = await client.SendMessageAsync(request);

Console.WriteLine($"Status: {response.Status}");
Console.WriteLine($"Response: {JsonSerializer.Serialize(response.Fields, new JsonSerializerOptions { WriteIndented = true })}");

if (response.Status == "Rejected")
    Console.WriteLine($"Error: {response.ErrorMessage}");

}

💡 Supported Order Types Type Method Equity SendEquityOrder() Fractional SendFractionalOrder() Option SendOptionOrder() Multi-Leg SendMultiLegOrder() Cancel CancelOrder() Replace ReplaceOrder() 🔐 Key Features

✅ Native QuickFIX/n integration

✅ Supports Azure Key Vault certificates

✅ JSON-based order structure for easy integration

✅ Plug-and-play FIX connectivity

✅ Built for Equity, Fractional, Notional, Option, and Multi-leg orders

🧠 OTHER Usage Examples 📦 Upload File to Azure Blob Storage using MainLibProj_Hrithik.AzureHelpers;

var connectionString = "DefaultEndpointsProtocol=https;AccountName=...;AccountKey=...;EndpointSuffix=core.windows.net;"; var containerName = "uploads"; var filePath = "C:\Users\Hrithik\Documents\data.json";

await BlobHelper.UploadFileAsync(connectionString, containerName, filePath); Console.WriteLine("✅ File uploaded successfully!");

🔑 Retrieve Secret from Azure Key Vault using MainLibProj_Hrithik.AzureHelpers;

var secretValue = await KeyVaultHelper.GetSecretAsync("https://myvault.vault.azure.net/", "StorageAccountKey"); Console.WriteLine($"🔒 Secret value: {secretValue}");

📊 Convert Excel File to JSON using MainLibProj_Hrithik.Converters;

var excelFilePath = "C:\Data\Orders.xlsx"; var json = ExcelConverter.ConvertToJson(excelFilePath);

Console.WriteLine(json);

📝 Convert Word Document to PDF using MainLibProj_Hrithik.Converters;

var docxPath = "C:\Docs\Invoice.docx"; var pdfPath = "C:\Docs\Invoice.pdf";

WordToPdfConverter.Convert(docxPath, pdfPath); Console.WriteLine("📄 PDF created successfully!");

🧰 Tech Stack

.NET 8.0

Azure SDK for .NET

OpenXML SDK

PdfSharpCore

Newtonsoft.Json

🪪 License

This project is licensed under the MIT License — feel free to use, modify, and distribute it.

💬 Contributing

Contributions are welcome! Feel free to open issues or submit pull requests to improve features or fix bugs.

📧 Contact

Author: Hrithik Email: hrithikkalra11@gmail.com

NuGet: MainLibProj_Hrithik

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