shiny web framework

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      Shiny is a web framework for developing web applications (apps), originally in R and since 2022 in python. It is free and open source. It was announced by Joe Cheng, CTO of Posit, formerly RStudio, in 2012. One of the uses of Shiny has been in fast prototyping.
      In 2022, a separate implementation Shiny for Python was announced. It is not meant to be a replacement, whereby both implementations will be developed concurrently and may never have all the features of each other. There is also Shinylive that allows running Shiny on the client (i.e., program code does not run on the server, reducing server load to just serving the code itself).


      Features


      Shiny creates a reactive context wherein the user specifies, through input variables, the circumstances under which computations are re-executed, or graphs (often visualizations) re-rendered; this occurs almost instantaneously. The input variables are evaluated via a user interface which allows the simple creation of widgets such as text boxes, radio buttons, and drop-down lists.
      There are two main parts to a Shiny file, which may alternatively be stored in two separate files. One is designed to accommodate the user interface, the appearance of which is restricted by the default choices, though can be extended through various other R packages. The other is designed to accommodate the server computations and plot generating code, for which all the built-in facilities of R are available.


      Examples



      This is an example of a basic application in R where:

      And the equivalent application written in python:

      And shiny express for python:


      Deploying / Hosting Shiny


      Deploying Shiny (R) can be achieved through several popular methods:

      Shiny Server (Open Source): This option allows on-premises hosting for Shiny applications, giving users control over server configurations without licensing costs. It’s ideal for organizations that want direct server access and control.
      Posit Connect (formerly RStudio Connect): A commercial, on-premises solution offering advanced features like user authentication, scheduled reporting, and support for multiple content types, including Shiny applications and R Markdown.
      shinyapps.io: A cloud-hosted service managed by Posit, providing easy deployment and scaling of Shiny apps without requiring server management. It’s user-friendly, ideal for small teams or solo developers. Hosting a Shiny app on a shinyapps.io server is free up to certain limits but paid tiers are relatively expensive compared to hosting on other cloud computing platforms.


      References




      External links


      Official website
      Joe Cheng | Keynote: The Past and Future of Shiny | RStudio (2022) (58:07)

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    Shiny (web framework) - Wikipedia

    Shiny is a web framework for developing web applications (apps), originally in R and since 2022 in python. It is free and open source. [2] It was announced by Joe Cheng, CTO of Posit, formerly RStudio, in 2012. [3] One of the uses of Shiny has been in fast prototyping. [4] In 2022, a separate implementation Shiny for Python was announced. [5]

    Shiny - Welcome to Shiny

    Shiny is an R package that makes it easy to build interactive web applications (apps) straight from R. This lesson will get you started building Shiny apps right away. If you still haven’t installed the Shiny package, open an R session, connect to the internet, and run.

    Shiny

    Put your Shiny app on the web by using your own servers or Posit’s hosting service. Shiny is package that makes it easy to build interactive web apps straight from R & Python.

    Web Application Framework for R • shiny - GitHub Pages

    Easily build rich and productive interactive web apps in R — no HTML/CSS/JavaScript required. An intuitive and extensible reactive programming model which makes it easy to transform existing R code into a “live app” where outputs automatically react to new user input.

    Welcome | Mastering Shiny

    Shiny is a framework for creating web applications using R code. It is designed primarily with data scientists in mind, and to that end, you can create pretty complicated Shiny apps with no knowledge of HTML, CSS, or JavaScript.

    rstudio/shiny: Easy interactive web applications with R - GitHub

    Easily build rich and productive interactive web apps in R — no HTML/CSS/JavaScript required. An intuitive and extensible reactive programming model which makes it easy to transform existing R code into a "live app" where outputs automatically react to new user input.

    Web Application Framework for R — shiny-package

    The Shiny tutorial at https://shiny.rstudio.com/tutorial/ explains the framework in depth, walks you through building a simple application, and includes extensive annotated examples. See also shiny-options for documentation about global options.

    shiny: Web Application Framework for R

    Easily build rich and productive interactive web apps in R — no HTML/CSS/JavaScript required. An intuitive and extensible reactive programming model which makes it easy to transform existing R code into a "live app" where outputs automatically react to new user input.

    shiny-package : Web Application Framework for R - R Package …

    Sep 11, 2024 · Shiny makes it incredibly easy to build interactive web applications with R. Automatic "reactive" binding between inputs and outputs and extensive prebuilt widgets make it possible to build beautiful, responsive, and powerful applications with minimal effort.

    shiny: Web Application Framework for R - R Package …

    Sep 11, 2024 · shiny: Web Application Framework for R Makes it incredibly easy to build interactive web applications with R. Automatic "reactive" binding between inputs and outputs and extensive prebuilt widgets make it possible to build beautiful, responsive, and powerful applications with minimal effort.