mehdihadeli / food-delivery-modular-monolith

🌭 A practical food delivery modular monolith, built with .Net 7, Domain-Driven Design, CQRS, Vertical Slice Architecture, Event-Driven Architecture, and the latest technologies.

Hi there, I'm Mehdi Hadeli 👋

I'm a software engineer, specializing in backend development and distributed systems. I have extensive experience in designing and implementing resilient, responsive, scalable, and maintainable systems using C#, .NET, Golang on top of cutting-edge technologies. My interests include microservices, system design, software architecture, domain driven design (DDD), event sourcing, CQRS, DevOps. I love learning, sharing, and facing challenges. Last but not least, I am also an open-source enthusiast.

🛠 Technologies & Skils

💻 Open Source Projects

I always make sure that I find enough time for open source contribution that also helps me expand my knowledge and work with other developers and team globally. here are some of my projects:

• 🍔 food-delivery-microservices: A practical food delivery microservices, built with .Net 7, MassTransit, Domain-Driven Design, CQRS, Vertical Slice Architecture, Event-Driven Architecture, and the latest technologies.
• 🍕 go-food-delivery-microservices: A practical food delivery microservices, built with golang, domain-driven design, cqrs, event sourcing, vertical slice architecture, event-driven architecture, and the latest technologies.
• 🎮 mehdihadeli/game-leaderboard-microservices: Implementation of a imaginary Game Leader Board application, based on Event Driven Architecture, Vertical Slice Architecture, Event Sourcing with EventStoreDB, Redis SortedSet and Pub/Sub, SignalR and .Net 8.
• 🚀 mehdihadeli/awesome-software-architecture: A curated list of awesome articles, videos, and other resources to learn and practice software architecture, patterns, and principles.
• 🐉 mehdihadeli/vertical-slice-api-template: An asp.net core template based on .Net 8, Vertical Slice Architecture, CQRS, Minimal APIs, API Versioning and Swagger.
• 🚃 mehdihadeli/Go-MediatR: A library for handling mediator pattern and simplified CQRS pattern within an event driven architecture. inspired by csharp MediatR library.
• ⚡ FastEndpoints/FastEndpoints - Contributer: A light-weight REST API development framework for ASP.Net 6 and newer.
• 📙 davidfowl/TodoApi - Contributer: Todo application with ASP.NET Core Blazor WASM, Minimal APIs and Authentication
• 🌭 mehdihadeli/food-delivery-modular-monolith: A practical food delivery modular monolith, built with .Net 7, Domain-Driven Design, CQRS, Vertical Slice Architecture, Event-Driven Architecture, and the latest technologies.
• 🧪 mehdihadeli/tdd-sample: A sample project demonstrating Test-Driven Development (TDD) using .Net 8 and Vertical Slice Architecture based on Minimal APIs in .NET Core
• 🥷 mehdihadeli/go-vertical-slice-template: A Golang boilerplate template, based on Vertical Slice Architecture and CQRS pattern with using Echo, Gorm, Zap, Viper, MediatR for CQRS and sarulabs/di for Dependency Injection.
• 🎬 mehdihadeli/movie-search-application: A simple movie search app, built with .Net 7, Vertical Slice Architecture and using TMDB APIs and YouTube APIs for searching and details of the movies.

🚀 Activities

food-delivery-modular-monolith's Issues

Upgrade to .Net 7

docker compose in README prerequisites doesn't work

I had to modify the path to use the /docker-compose subfolder but even then I get an error saying unknown shorthand flag: 'd' in -d

Modular DI

Hi, I want to isolate the dependency injection between modules, which means that we can have an interface sharing across modules and each module has it own implementation. Do you have any idea ?
For example I have Catalog module which use IRepository and a MongoDbRepository class for using mongo db.
Another module called Order Module also use IRepository and a EfCoreRepositoryClass for using ef core.

I would like to ask you that how can I inject or can I isolate DI for each Module ?

Add Program file to each module

• Adding Program.cs to each module and all dependencies out there to be possible to host each module independently for development and test purpose beside of whole monolith api module
• https://github.com/chrisklug/asp-net-modular-monolith

Service Not Registered, Calling Module from other Module

using BuildingBlocks.Abstractions.CQRS.Command;
using BuildingBlocks.Abstractions.Messaging;
using BuildingBlocks.Abstractions.Messaging.Context;
using BuildingBlocks.Abstractions.Persistence;
using BuildingBlocks.Core.Messaging;
using ECommerce.Modules.Customers.RestockSubscriptions.Features.ProcessingRestockNotification;

namespace ECommerce.Modules.Customers.Products.Features.ReplenishingProductStock.Events.External;

public record ProductStockReplenished(long ProductId, int NewStock, int ReplenishedQuantity) :
    IntegrationEvent,
    ITxRequest;

public class ProductStockReplenishedConsumer : IMessageHandler<ProductStockReplenished>
{
    private readonly ICommandProcessor _commandProcessor;
    private readonly ILogger<ProductStockReplenishedConsumer> _logger;

    public ProductStockReplenishedConsumer(
        ICommandProcessor commandProcessor,
        ILogger<ProductStockReplenishedConsumer> logger)
    {
        _commandProcessor = commandProcessor;
        _logger = logger;
    }

    // If this handler is called successfully, it will send a ACK to rabbitmq for removing message from the queue and if we have an exception it send an NACK to rabbitmq
    // and with NACK we can retry the message with re-queueing this message to the broker
    public async Task HandleAsync(
        IConsumeContext<ProductStockReplenished> messageContext,
        CancellationToken cancellationToken = default)
    {
        var productStockReplenished = messageContext.Message;

        await _commandProcessor.SendAsync(
            new ProcessRestockNotification(productStockReplenished.ProductId, productStockReplenished.NewStock),
            cancellationToken);

        _logger.LogInformation(
            "Sending restock notification command for product {ProductId}",
            productStockReplenished.ProductId);
    }
}

Above SendAsync method works sometimes, sometimes throw an error:

Error constructing handler for request of type MediatR.IRequestHandler`2[ECommerce.Modules.Customers.RestockSubscriptions.Features.ProcessingRestockNotification.ProcessRestockNotification,MediatR.Unit]. Register your handlers with the container. See the samples in GitHub for examples.

Upgrade to .NET 8

Adding Monitoring to modules

Remove share module