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shinyappsio.qmd
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shinyappsio.qmd
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# shinyapps.io {#sec-shinyappsio}
```{r}
#| eval: true
#| echo: false
#| include: false
source("_common.R")
```
```{r}
#| label: co_box_tldr
#| echo: false
#| results: asis
#| eval: true
co_box(
color = "b",
look = "default", hsize = "1.10", size = "1.05",
header = "TLDR: Deploying your app", fold = TRUE,
contents = "
"
)
```
## Deploying the app
Below we'll cover deploying your Shiny app-package in RStudio {height=20} and Positron {height=20}. The Positron {height=20} IDE was still in the early stages of development when this section was written, so some of these steps may change in future versions.
### In RStudio {height=20}
To deploy the app, I can click on the **Publish** icon:
{width=100%}
Make sure all the files in the package are selected, then click **Publish**
{width=80%}
The **Deploy** pane will open and you'll see a deployment log as your application is sent to the server:
```{bash}
#| eval: false
#| code-fold: true
#| code-summary: 'show/hide deployment log'
── Preparing for deployment ────────────────────────────────────────────────────
✔ Deploying "movie-reviews" using "server: shinyapps.io / username: yourusername"
ℹ Creating application on server...
✔ Created application with id 12692760
ℹ Bundling 27 files: .Rbuildignore, app.R, data/movies.rda, data/movies.RData,
DESCRIPTION, inst/extdata/movies.fst, NAMESPACE, README.md, www/shiny.png,
man/display_type.Rd, man/launch_app.Rd, man/mod_scatter_display_server.Rd,
man/mod_scatter_display_ui.Rd, man/mod_var_input_server.Rd,
man/mod_var_input_ui.Rd, man/movies_server.Rd, man/movies_ui.Rd, man/movies.Rd,
…, R/movies_ui.R, and R/scatter_plot.R
ℹ Capturing R dependencies with renv
✔ Found 61 dependencies
✔ Created 389,882b bundle
ℹ Uploading bundle...
✔ Uploaded bundle with id 9093617
── Deploying to server ─────────────────────────────────────────────────────────
Waiting for task: 1456625417
building: Building image: 11062313
building: Fetching packages
building: Installing packages
building: Installing files
building: Pushing image: 11062313
deploying: Starting instances
rollforward: Activating new instances
success: Stopping old instances
── Deployment complete ─────────────────────────────────────────────────────────
✔ Successfully deployed to <https://yourusername.shinyapps.io/app-name/>
Deployment completed: https://yourusername.shinyapps.io/app-name//
```
#### Deploy logs {#sec-launch-shinyapps-log}
On [shinyapps.io](https://www.shinyapps.io/), the deployment log shows the `loadSupport()` warning persists (but the application still [deploys](https://paradigmdata.shinyapps.io/movie-reviews/). The server-side warning is a known issue.[^launch-loadsupport-warning]
[^launch-loadsupport-warning]: You can learn more about this warning by reading these posts on StackOverflow: [How can I deploy my shiny app as a package?](https://stackoverflow.com/questions/64774355/how-can-i-deploy-my-shiny-app-as-a-package); [Problem with directory when deploying app on shinyapps](https://stackoverflow.com/questions/67511409/problem-with-directory-when-deploying-app-on-shinyapps), and this post on Posit Community: [Errors when deploying app on shinyapps.io](https://community.rstudio.com/t/errors-when-deploying-app-on-shinyapps-io/104550).
```{verbatim}
shinyapps[12692760]: Running as user: uid=10001(shiny) gid=10001(shiny) groups=10001(shiny)
shinyapps[12692760]: Connect version: 2024.05.0
shinyapps[12692760]: LANG: C.UTF-8
shinyapps[12692760]: Working directory: /srv/connect/apps/movie-reviews
shinyapps[12692760]: Using R 4.4.0
shinyapps[12692760]: R.home(): /opt/R/4.4.0/lib/R
shinyapps[12692760]: Content will use current R environment
shinyapps[12692760]: R_LIBS: (unset)
shinyapps[12692760]: .libPaths(): /usr/lib/R, /opt/R/4.4.0/lib/R/library
shinyapps[12692760]: shiny version: 1.9.1
shinyapps[12692760]: httpuv version: 1.6.15
shinyapps[12692760]: rmarkdown version: (none)
shinyapps[12692760]: knitr version: (none)
shinyapps[12692760]: jsonlite version: 1.8.8
shinyapps[12692760]: RJSONIO version: (none)
shinyapps[12692760]: htmltools version: 0.5.8.1
shinyapps[12692760]: reticulate version: (none)
shinyapps[12692760]: Using pandoc: /opt/connect/ext/pandoc/2.16
shinyapps[12692760]:
shinyapps[12692760]: Starting R with process ID: '31'
shinyapps[12692760]: Shiny application starting ...
shinyapps[12692760]: Warning in warn_if_app_dir_is_package(appDir) :
shinyapps[12692760]: Loading R/ subdirectory for Shiny application,
but this directory appears to contain an R package. Sourcing files
in R/ may cause unexpected behavior. See `?loadSupport` for more details.
shinyapps[12692760]: ℹ Loading sap
shinyapps[12692760]:
shinyapps[12692760]: Listening on http://127.0.0.1:123456
```
### In Positron {height=20}
After loading, documenting, and installing our app-package, we can deploy it in Positron {height=20} using the `rsconnect::deployApp()` function.
{width=100%}
As we can see, Positron doesn't open a **Deploy** window or separate Terminal task for launching the application (it's printed directly to the **Console**).
## The [`rsconnect`]{style="font-size: 0.90em; font-weight: bold;"} folder
When deploying a Shiny app, the `rsconnect/` folder is automatically created to store configuration settings and deployment metadata for the app. Below are a few points to consider with regard to this folder: