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Flask was created by Armin Ronacher of Pocoo, an international group of Python enthusiasts formed in 2004. [6] According to Ronacher, the idea was originally an April Fool's joke that was popular enough to make into a serious application. [7] [8] [9] The name is a play on the earlier Bottle framework. [7]
In computing, POST is a request method supported by HTTP used by the World Wide Web. By design, the POST request method requests that a web server accepts the data enclosed in the body of the request message, most likely for storing it. [1] It is often used when uploading a file or when submitting a completed web form.
The Web Server Gateway Interface (WSGI, pronounced whiskey [1] [2] or WIZ-ghee [3]) is a simple calling convention for web servers to forward requests to web applications or frameworks written in the Python programming language. The current version of WSGI, version 1.0.1, is specified in Python Enhancement Proposal (PEP) 3333. [4]
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Diagram of a double POST problem encountered in user agents. Diagram of the double POST problem above being solved by PRG. Post/Redirect/Get (PRG) is a web development design pattern that lets the page shown after a form submission be reloaded, shared, or bookmarked without ill effects, such as submitting the form another time.
[3] [4] It supports handling HTTP requests, Web Sockets, JSON, templating, and more. Its design was inspired by Rails, Flask, Bottle, and Yesod. [5] It is dually licensed under the MIT License and the Apache License. To create a web server with Rocket, the user will define an application, then use the "mount" function to attach "routes" to it.
The POST method requests that the target resource process the representation enclosed in the request according to the semantics of the target resource. For example, it is used for posting a message to an Internet forum , subscribing to a mailing list , or completing an online shopping transaction.
Under HTTP 1.0, connections should always be closed by the server after sending the response. [1]Since at least late 1995, [2] developers of popular products (browsers, web servers, etc.) using HTTP/1.0, started to add an unofficial extension (to the protocol) named "keep-alive" in order to allow the reuse of a connection for multiple requests/responses.