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Questions tagged [shinyapps]

Questions regarding shinyapps.io by RStudio. This tag should NOT be used for general questions concerning Shiny: those belong to the tag `shiny`.

shinyapps.io is a product by RStudio that allows you to deploy and share your Shiny applications online.

shinyapps.io is a self-service platform that makes it easy for you to share your shiny applications on the web

Site: https://www.shinyapps.io/.
Docs: https://docs.rstudio.com/shinyapps.io/.

1217 questions
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How can I pull data on my R shiny server using REST API

I have developed a relatively simply R shiny app that does the following: I input a txt file. The txt file is processed. A new object is created: timestamp + a number. I save it in my sql database for instance or I save it as a .txt on my…
Arkadi w
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conditional panel where condition is length of input

I'm having trouble understanding why my condition input.wave1.length > 1 does not work. What I would like happen is for the checkbox "Overall Curve" to not appear unless input$loess AND if there are more than 1 items checked in the either Wave 1 or…
laBouz
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Shiny.io out of memory

I am trying to create an interactive map using the shiny web application in R. After creating and deploying the app to my shiny.io account, the URL to the application actually does not display the map but only shows the side panel and main panel.…
Kaihua Hou
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Custom R shiny fileInput from url, web, cloud

I have a shiny app that needs to be able to take a file in from the web / s3 / a pre-signed download url. I have a custom javascript widget that i am able to get a presigned url from or public s3 path. I am building off of this question / answer…
Alex
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Issue Deploying R Shiny App to shinyapps.io

I'm having an issue deploying an updated version of my Shiny App. Whenever I attempt to deploy, my system stalls on Starting Upload Now and I get this error repeatedly. This output is with the Show Diagnostic Information when Publishing flag turned…
Max Feinberg
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How to shorten code for "visRemoveNodes" using loop in rstudio

I have constructed multiple protein - protein networks for diseases in shiny app and I ploted them using visnetwork. I found the articulation points for each network and I want to remove them. My code for a disease looks like this: output$plot54 <-…
ch009
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Showing "Loading" when download button is running in R server and hidden messages when finishing the task

I am trying to create a shiny app which can download the files from the database but the querying time is very long so I want to let the user know that after they press the button, the web browser shows "loading to the user" and after finished…
YihanBao
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PickerInput label issue when inline is TRUE

I have a r shiny app in which users have numerous choices they need to pick prior to plotting. In the pickerInput, the label text goes behind the choices. The code…
YBS
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Shiny file Input accepting all file types

I have created a form on Shiny which has fileInput button to upload only .pdf extension file.But while testing it i found that it's accepting all kind of file type however i have mentioned .pdf in accept parameter of fileInput shown in below codes: …
Nick
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How to use library(writexl) pakcage to save multiple dataframe with a custmized name

I am using the package writexl to save two dataframe into one csv file in R shiny. And here is part of my code: library(writexl) server <- function(input,output){ filename = function(){ paste('data.csv') }, content…
YihanBao
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When deploying shiny app in shiny.io I get "app.R did not return a shiny.appobj object"

Error in value[[3L]](cond) : app.R did not return a shiny.appobj object. Calls: local ... tryCatch -> tryCatchList -> tryCatchOne -> Execution halted This is the error I am getting while deploying my shiny app in shiny.io, but the app…
Subramaniam S M
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Change text colour of Shiny Dashbaord selectInput text

I have built a Shiny Dashboard and am looking to change the text colour of my selectInput text. For example, in the below code, I want to change the colour of the text 'Passing Metric' and 'Game location' to BLACK instead of WHITE. I've tried a few…
NDTB
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How to stop end shiny session by closing the browser

I have a shiny app that I would like to end the session every time, I close the browser. I researched around and most developers proposed adding this snippet on my server. session$onSessionEnded(function() { stopApp() }) A minimal example is…
mutinda festus
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Upgrade GEOS version on shiny apps.io

It seems that the current version of GEOS available on shinyapps.io is not at the right level. This is the error message I am getting when trying to deploy my app: ** package ‘lwgeom’ successfully unpacked and MD5 sums checked ** using staged…
Jean-Phi N
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Is there a way to select or return the selected variable from dropdown in selected via selectInput?

I am trying to build a function which will select the data variables entered from the file and show the data variables to be selected via the dropdown and to display the variable that is selected currently. Here, I am able to add file and show the…
Pawan Rama Mali
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