Backend and FastAPIWhat a backend is, HTTP methods and status codes, path/query/body, setting up a first server with FastAPI, and middleware that runs on every request.Backend and HTTP: Who Does What, Methods and Status Codes FastAPI from Scratch: Installation, app = FastAPI(), a First Route and Running the Server Path Params, Query Parameters and Body FastAPI: Path Params, Query, Body and HTTPException Middleware: Code That Runs on Every Request