Improve Node.js app performance with TypeDI and the strategy pattern

Improving Node.js application performance can be achieved by leveraging caching and memoization techniques, specifically through the integration of TypeDI and the strategy pattern to switch between Redis and Memcached as cache providers. This approach involves building an API service that uses the strategy pattern to maintain flexibility in service provider design, and employing dependency injection with TypeDI to offer an Inversion of Control (IoC) container. The tutorial guides setting up an Express.js application, configuring Redis and Memcached with Docker, and implementing a cache provider that uses the strategy pattern to manage different caching strategies. The application includes a transactions module where transaction records are read and written from high-performance caches, enhancing operational efficiency by utilizing RAM instead of slower disk-based data access. The guide also emphasizes the importance of design patterns like the strategy pattern and dependency injection for creating maintainable and performant cloud applications, encouraging the exploration of other functional design patterns such as Proxy and Adapter.