NewsLetter

A .NET 10.0 worker service that generates daily C# tips using Google Gemini AI and delivers them via email using Resend.

Features

• 🤖 AI-Powered: Generates concise, professional C# tips using Google's Gemini Flash model.
• 📧 Automated Email: Sends formatted HTML emails via Resend.
• ⏱️ Scheduled: Runs on a configurable schedule using Quartz.NET.
• 🐳 Dockerized: Includes Docker support for easy deployment.

Prerequisites

• .NET 10.0 SDK
• Docker (optional)
• API Keys for:
  • Google Gemini
  • Resend

Configuration

Configure the application using appsettings.json or Environment Variables.

Setting	Environment Variable	Description
Gemini API Key	GEMINI_API_KEY	Your Google Gemini API Key
Email API Key	Email__EmailApiKey	Your Resend API Key
From Email	Email__FromEmail	Sender email address (must be verified in Resend)
To Email	Email__ToEmail	Recipient email address

appsettings.json Example

{
  "GEMINI_API_KEY": "your_gemini_key",
  "Email": {
    "EmailApiKey": "your_resend_key",
    "FromEmail": "newsletter@yourdomain.com",
    "ToEmail": "you@example.com"
  }
}

Running Locally

1. Restore dependencies:

   dotnet restore

2. Run the application:

   dotnet run

Docker Support

Build and run using Docker Compose:

docker compose up --build

Tech Stack

• Framework: .NET 10.0
• AI: Google.GenAI
• Email: Resend
• Scheduling: Quartz.NET
• Hosting: Microsoft.Extensions.Hosting