shinyStorePlus R package

THREE MAIN FEATURES:

• In-browser storage for Shiny persistent, synchronized data from the inputs using IndexedDB.
• Transfer browser link parameters to Shiny input or output values.
• Store shiny app visitor views, likes and followers !NEW

Note: As of version 1.3, shinyStorePlus now allows storage of visitor views, likes and followers

Note: As of version 1.2, shinyStorePlus now stores inputs dynamically generated within the server function.

Official docs link: https://shinystoreplus.obi.obianom.com

Demo 1: https://r2apps.shinyapps.io/shinystoreplus/

Demo 2: https://r2apps.shinyapps.io/browserLinkToInput/?data=pressure&name=obinna&num=50&outt=wowowow

Demo 3: https://rpkg.shinyapps.io/shiny-app-views-likes-followers/

Transformation of various shiny apps with the shinyStorePlus package: https://github.com/oobianom/aagarw30_shinyapps_to-shinyStorePlus

Start with more simple example code #2: https://github.com/oobianom/shinyStorePlus/tree/main/inst/example/storeInputs

Start with more simple example code #3: https://github.com/oobianom/shinyStorePlus/tree/main/inst/example/browserLinkToInput

Teaser video: https://www.youtube.com/watch?v=gkZfCF4Kr7I

Other packages required for shinyStorePlus: https://depends.rpkg.net/package/shinyStorePlus

Author R scholar profile: https://scholar.rpkg.net/aut/obinna+obianom

There has been tremendous contribution from the R community on the topic of storing Shiny data and re-using them within an application. The current solutions include Dropbox, Amazon s3, Googlesheets, SQLite, MongoDB and so on. However, a problem with these methods is that it takes a number of steps in order to correctly program your Shiny application for them. More so, the owner of the accounts may need to consistently monitor the storage accounts to ensure that it is not expire or that the data storage is not exhausted.

So let’s face it. When you develop a shiny app that allows a user to change inputs and see the results immediately, guess what the user is itching to have?? The ability to change the inputs and when they refresh or reopen the shiny app at a later time, still see the inputs they previously entered. Well, shinyStorePlus R package gives that!

As of version 0.8 , you are also able to transfer the parameters in a browser link to Shiny inputs and outputs. e.g extracting the value of name from http://127.0.0.1:6692/?data=pressure&name=obinna&num=50&outt=wowowow. See link

Installation and Usage

Install

```{r shinyStorePlus}

From CRAN

install.packages(shinyStorePlus)

OR from Github

library(devtools) install_github(“oobianom/shinyStorePlus”)

### Usage

`library(shinyStorePlus)`

### Use example

`seeexample()`

## Sample code

library(shiny) library(shinyStorePlus) ui <- fluidPage( titlePanel(“Simplified shiny app storage of views, likes and followers”), initStore(“all”,rpkg.api.key = “c20c5eead7714c119dd3f20bd249a388e72db2aa0f9305d0380b683a37c5296a”), h2(“Save App Views”),hr(), viewsBox(“viewsshow”,“loading views…”), h2(“Save App Likes, and allow user to Like!”),hr(), lfButton(“liket”,suffix=“likes”), h2(“Save App Followers, and allow user to Follow!”),hr(), lfButton(“followt”,suffix=“followers”), h2(“Also incorporate in-browser storage for input fields!”),hr(), selectInput(“sel_not0”, “Color (store):”, choices = c(““,”brown”, “green”, “blue”, “red”, “yellow”, “cyan”), selected = ““), selectInput(”sel_color”, “Color (should be stored):”, choices = c(““,”green”, “blue”, “red”, “yellow”, “cyan”), selected = ““), hr(),p(p(i(”Like or Follow and Refresh the page - the values are saved and the views are incremented.”))) )

server <- function(input, output, session) { # set up views, likes and follows, leave as NULL if you don’t need tracking for either # in this case, we leave followID as NULL since we don’t need to use that setupRPKG(viewsID = “viewsshow”, likesID = “liket”, followID = “followt”)

# setup for in browser tracking setupStorage(appId = “shinest12”, inputs = c(“sel_not0”,“sel_color”), session = session) }

shinyApp(ui = ui, server = server, options = list(launch.browser = TRUE,shiny.port =7171))

```

Demo screenshot