Download data from shiny app

Disney has released a new streaming app to rival the other major streaming services. Here are all the details on what to expect. Many people are looking for a family friendly streaming app. Public Pastes. JavaScript 28 min ago 0. Arduino 50 min ago 0. Arduino 51 min ago 0. Unlike other outputs, downloadButton is not paired with a render function. Instead, you use downloadHandler , which looks something like this:.

The job of this function is to create the name that will be shown to the user in the download dialog box. The job of this function is to save the file in a place that Shiny knows about, so it can then send it to the user. This is an unusual interface, but it allows Shiny to control where the file should be saved so it can be placed in a secure location while you still control the contents of that file. The following app shows off the basics of data download by allowing you to download any dataset in the datasets package as a tab separated file, Figure 9.

I recommend using. You can avoid this complexity by using tab separated files, which work the same way everywhere. Note the use of validate to only allow the user to download datasets that are data frames. A better approach would be to pre-filter the list, but this lets you see another application of validate. As well as downloading data, you may want the users of your app to download a report that summarises the result of interactive exploration in the Shiny app.

This is quite a lot of work, because you also need to display the same information in a different format, but it is very useful for high-stakes apps. One powerful way to generate such a report is with a parameterised RMarkdown document. This makes it easy to generate many different reports from the same. Asked 5 years ago. Active 5 years ago. Viewed 5k times. I'm learning shiny and I'm creating a shiny app that should enable the user to: 1- Upload the data as.

Any suggestion will be highly appreciated? Improve this question. Noticing some issues in the code. Additionally, If you're using ggplot for the figure, just use ggsave and pass it the plot object rather than messing around with device calls within shiny.

This question should help with passing the plot to ggsave within shiny. Add a comment. Communicating with Shiny via JavaScript. Debugging Shiny applications. Write error messages for your UI with validate. Shiny testing overview. Server function testing with Shiny. Modularizing Shiny app code. Communication between modules.

Shiny App Usage Tracking. Performance and scalability. Using caching in Shiny to maximize performance. Improving scalability with async programming. Scaling and Performance Tuning with shinyapps. Deploying Shiny apps to the web.

Getting started with shinyapps. Authentication and authorization model for shinyapps. Setting up custom domains on shinyapps. Sharing data across sessions on shinyapps.