generally consists of one or more RequestHandler subclasses, an Application object which routes incoming requests to handlers, and a main() function to start the server. A minimal “hello world” example looks something Application object is responsible for global configuration, including the routing table that maps requests to handlers. The routing table is a list of URLSpec objects (or tuples), each of which contains Applications that wish to use JSON instead of form-encoding may override prepare to parse their requests: 24 Chapter 6. DocumentationTornado Documentation, Release 6.5.1 def prepare(self): if self.request

generally consists of one or more RequestHandler subclasses, an Application object which routes incoming requests to handlers, and a main() function to start the server. A minimal “hello world” example looks something Application object is responsible for global configuration, including the routing table that maps requests to handlers. The routing table is a list of URLSpec objects (or tuples), each of which contains Applications that wish to use JSON instead of form-encoding may override prepare to parse their requests: def prepare(self): if self.request.headers.get("Content-Type", "").startswith("application/json"):

"Accept-Encoding: gzip, deflate, br", "DNT: 1", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "Sec-Fetch-Dest: document", "Sec-Fetch-Mode: navigate", "Sec-Fetch-Site: none"