Networking Essentials

Notes At a basic level, understand how services talk to each other and what happens when those connections fail or get slow. For 90% of the use cases, default to HTTP over TCP. WebSockets and Server-Sent Events (SSE) come up when you need real-time updates. SSE is unidirectional - the client makes an initial HTTP request to open the connection, and the server pushes data down that connection.…