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https://github.com/kavaan/solutions-for-improving-application-performance-and-scalability

Best practices, tools, and techniques for building fast, resilient, and scalable applications.
https://github.com/kavaan/solutions-for-improving-application-performance-and-scalability

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Best practices, tools, and techniques for building fast, resilient, and scalable applications.

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# 🚀 Solutions for Improving Application Performance & Scalability

Building fast, scalable, and reliable applications is essential. This guide covers key solutions to improve performance, manage scalability, and enhance resilience. Explore the best tools and techniques to keep your applications running smoothly, from efficient resource management to optimizing microservices communication.

## 🎯 Feature Flags
**Problem:** Releasing new features often requires redeployment, causing application downtime and complicating rollbacks.

**Tools:**
- 🚦 [LaunchDarkly](https://launchdarkly.com/)
- 🔄 [Unleash](https://www.getunleash.io/)
- ☁️ [Azure App Config](https://learn.microsoft.com/en-us/azure/azure-app-configuration/manage-feature-flags?tabs=azure-portal)

## 🔑 Secrets Management
**Problem:** Storing sensitive credentials, such as API keys and database passwords, in configuration files increases security risks.

**Tools:**
- 🏦 [Azure Key Vault](https://learn.microsoft.com/en-us/azure/key-vault/)
- 🔐 [HashiCorp Vault](https://www.vaultproject.io/)

## 🔌 WebSockets
**Problem:** High latency in real-time applications reduces responsiveness and user experience.

**Tools:**
- 📡 [SignalR](https://dotnet.microsoft.com/en-us/apps/aspnet/signalr)
- 🔗 [Socket.IO](https://socket.io/)
- 🌐 [WebSocket API](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API)

## ⚖️ Load Balancing
**Problem:** A single server causes bottlenecks and downtime during traffic spikes.

**Tools:**
- 🏗️ [NGINX](https://www.nginx.com/)
- ⚡ [HAProxy](https://www.haproxy.org/)
- 🚀 [Traefik](https://traefik.io/)

## 📩 Message Brokers
**Problem:** Tight coupling between services leads to slow communication and failure propagation.

**Tools:**
- 🐰 [RabbitMQ](https://www.rabbitmq.com/)
- 📡 [Kafka](https://kafka.apache.org/)
- ☁️ [Azure Service Bus](https://learn.microsoft.com/en-us/azure/service-bus-messaging/)

## 🛡️ Building Resilient Applications
**Problem:** External service failures can lead to system downtime, impacting user experience.

**Tools:**
- 🏗️ [Polly](https://github.com/App-vNext/Polly)
- 🔄 [Circuit Breaker](https://learn.microsoft.com/en-us/azure/architecture/patterns/circuit-breaker)
- ⚡ [Hystrix](https://github.com/Netflix/Hystrix)

## ⏳ Background Jobs
**Problem:** Long-running tasks block the main thread, slowing response times.

**Tools:**
- ⏱️ [Hangfire](https://www.hangfire.io/)
- 📆 [Quartz.NET](https://www.quartz-scheduler.net/)
- 🔄 [Celery](https://flask.palletsprojects.com/en/stable/patterns/celery/)

## 🔄 Data Consistency
**Problem:** Ensuring data consistency in distributed services can cause conflicts.

**Tools:**
- 📜 [EventStoreDB](https://docs.kurrent.io/)
- ⚡ [Akka](https://akka.io/)

## 🌉 API Gateway
**Problem:** Managing multiple APIs with different endpoints is cumbersome.

**Tools:**
- 🚦 [Ocelot](https://github.com/ThreeMammals/Ocelot)
- 🔄 [YARP](https://mehmetozkaya.medium.com/api-gateways-with-yarp-reverse-proxy-in-net-8-microservices-58c5565697d0)
- 🌐 [Kong](https://konghq.com/)

## 📜 API Documentation
**Problem:** Lack of standardized documentation makes API integration difficult.

**Tools:**
- 📖 [Swagger](https://swagger.io/)

## 🏢 Multi-Tenancy
**Problem:** Managing tenant-specific data in a single application leads to complexity.

**Tools:**
- 🏠 [Finbuckle.MultiTenant](https://github.com/Finbuckle/Finbuckle.MultiTenant)
- 🏢 [SaaSKit](https://github.com/saaskit/saaskit)

## 🕵️ Distributed Tracing
**Problem:** Debugging microservices is hard without request flow visibility.

**Tools:**
- 🔍 [OpenTelemetry](https://opentelemetry.io/)
- 🛠️ [Jaeger](https://www.jaegertracing.io/)
- 📡 [Zipkin](https://zipkin.io/)