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Flask is a micro web framework written in Python.It is classified as a microframework because it does not require particular tools or libraries. [2] It has no database abstraction layer, form validation, or any other components where pre-existing third-party libraries provide common functions.
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.
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A query string is a part of a uniform resource locator that assigns values to specified parameters.A query string commonly includes fields added to a base URL by a Web browser or other client application, for example as part of an HTML document, choosing the appearance of a page, or jumping to positions in multimedia content.
Line 2 receives an incoming event, for example, HTTP request or WebSocket message. The await keyword is used because the operation is asynchronous. Line 4 asynchronously sends a response back to the client. In this case, it is a WebSocket communication.
The request/response message consists of the following: Request line, such as GET /logo.gif HTTP/1.1 or Status line, such as HTTP/1.1 200 OK, Headers; An empty line; Optional HTTP message body data; The request/status line and headers must all end with <CR><LF> (that is, a carriage return followed by a line feed).
A microframework is a term used to refer to minimalistic web application frameworks.It is contrasted with full-stack frameworks. It lacks most of the functionality which is common to expect in a full-fledged web application framework, such as:
The functionality of htmx is built off of the attributes hx-get, hx-post, hx-put, hx-delete, andhx-patch, which issue AJAX requests with the specified HTTP method. [ 11 ] [ 18 ] These requests are made when an certain DOM event is fired, change for input, select, and textarea elements, submit for form elements , and click for other elements. [ 11 ]