Stack Overflow
Stack Overflow

Questions tagged [shiny-server]

Shiny Server provides a platform on which you can host multiple Shiny applications on a single server, each with their own URL or port.

Shiny Server is a server program that makes Shiny applications available over the web.

Using Shiny Server, you can host multiple Shiny applications, as well as static web content, on a Linux server and make them available over the internet. You can specify what applications are available at what URL, or configure Shiny Server to let anyone with a user account on the server deploy their own Shiny applications.

1655 questions
115
votes
6 answers

Hosting and setting up own shiny apps without shiny server

I'm trying to make shiny apps available to my coworkers without them having to run or even have R installed. So I read this webpage and found this sentence: If you are familiar with web hosting or have access to an IT department, you can host…
schlusie
  • 1,907
  • 2
  • 20
  • 26
98
votes
5 answers

Shiny: what is the difference between observeEvent and eventReactive?

I read the Shiny documentation about reactive programming a few times now, but I can't properly understand the difference between observeEvent and eventReactive. The documentation says: Use observeEvent whenever you want to perform an action in…
lucacerone
  • 9,859
  • 13
  • 52
  • 80
79
votes
12 answers

pandoc version 1.12.3 or higher is required and was not found (R shiny)

I have a problem generating a pdf report from my app shiny which is hosted on a server. the app works fine but when I press the button to download the report, I get this error : pandoc version 1.12.3 or higher is required and was not found. The…
Daniele Avancini
  • 899
  • 1
  • 10
  • 14
44
votes
4 answers

How do you pass parameters to a shiny app via URL

In web browsers you pass parameters to a website like www.mysite.com/?parameter=1 I have a shiny app and I would like to use the parameter passed in to the site in calculations as an input. So is it possible to do something like…
user3022875
  • 8,598
  • 26
  • 103
  • 167
39
votes
3 answers

developing shiny app as a package and deploying it to shiny server

I am developing a shiny app and since I wanted to use automated testing and documentation of the function, I started to develop the interface within a package (as recommended here). I develop this shiny app within RStudio and I have a server.R file…
drmariod
  • 11,106
  • 16
  • 64
  • 110
33
votes
2 answers

R Shiny REST API communication

I have a shiny app that takes a JSON input file, runs it through a classifier and returns a classified JSON object. I want the app to be able to communicate with an API. I want the API to post a file to the Shiny App which will do its work and…
user2987739
  • 713
  • 2
  • 7
  • 9
31
votes
1 answer

R shiny different output between renderTable and renderDataTable

I have a shiny application that shows a nice html table of my data, using renderDataTable. Then I wanted to make some basic statistics, subset data and calculate means and some other data. When showing results with renderTable, I found that date…
pacomet
  • 5,011
  • 12
  • 59
  • 111
30
votes
1 answer

Is it possible to run RSelenium in ShinyApp on the RStudio server?

I faced such an issue: i have Rscript that uses RSelenium to navigate pages, click buttons and collect data. I included this script as a function in my shinyApp. When I run it from my machine everything is as expected: after clicking the button…
Amaliya Akopyan
  • 401
  • 3
  • 7
25
votes
3 answers

Understanding the scalability of RShiny apps hosted on ShinyServer

I am building a series of interactive shiny web apps for a project that I am considering turning into a Company. My background is in data science and I don't have a lot of experience on the web app / server side of things, but these are important…
Canovice
  • 9,012
  • 22
  • 93
  • 211
25
votes
4 answers

Accept HTTP Request in R shiny application

I have a shiny app that I have made that needs to get its data from another server, i.e. the other server when the shiny app is opened sends a request to the shiny app to open the app and feed it the data that it needs. To simulate this I can send…
James Willcox
  • 631
  • 1
  • 10
  • 15
24
votes
2 answers

Shiny: What is the option setting to display in the console the messages between server and ui

I remember having used an option setting that enable to print in the R console the messages between the server and ui while a shiny app is running. This option is really useful to understand what is happening in the app. However I cant remember the…
user2147028
  • 1,281
  • 13
  • 19
21
votes
3 answers

How to embed an image in a cell a table using DT, R and Shiny

How can I embed an image in a cell that is generated using the DT package so that it is displayed in an app using shiny? My example is based of this question R shiny: How do I put local images in shiny tables The example code below doesn't display…
Iain
  • 1,608
  • 4
  • 22
  • 27
21
votes
1 answer

Does R-Server or Shiny Server create a new R process/instance for each user?

I'm considering different solutions for creating a Web application that shows some data analytics to the user. I want to use R with shiny server but I'm not certain how it is gonna scale for large number of users. Questions: Can shiny server…
user2840286
  • 601
  • 7
  • 18
21
votes
2 answers

Update graph/plot with fixed interval of time

I have a plot in Shiny UI. If I change any input parameter and through reactivity plot will change. But let's consider following situation:- The plot in Shiny UI plotting let say intra-day price move of a stock. And for that you query some live data…
Indranil Gayen
  • 702
  • 1
  • 4
  • 17
21
votes
2 answers

Shiny R application that allows users to modify data

This is not yet a practical question but rather a theoretical one. I was thinking of using Shiny to display some raw data in an interactive way. This is fine. However - is it possible to have users change the data that is displayed? Say, if I have…
devmag
  • 233
  • 3
  • 5
1
2 3
…
99 100