Http Stateless

• HTTP generally operates in a connectionless manner

  • It connects to the server, sends a request, receives a response, and then disconnects

• By default, one connection is created for each resource

• Advantages

  • It is suitable for services targeting an unspecified large number of users

  • Even if hundreds of thousands of users are using a web service, connection maintenance can be kept to a minimum, allowing more user requests to be processed

• Disadvantages

  • Since it disconnects, the previous state of the client cannot be known

    • This characteristic is called Stateless, and it can be considered a characteristic derived from Connectionless

  • If the client's previous state information cannot be known, it immediately causes problems for web services

    • ex) Even if the client successfully logged in before, the login information cannot be maintained

    • HTTP solves this problem using Cookies!