Hello,
I'm still fairly new to Shiny. This was a class project whose goal was to integrate JavaScript with Shiny. I used leaflet.js for the map and the R dygraphs library for the chart. Part of the assignment was to deal with error messages "gracefully". This is why the app loads with a modalDialog. I tried using validate() to deal with the errors, but from what I can tell, the issue is not so much Shiny, but the website rvest is scraping (weather(dot)gov). There is just missing data. If anyone has any suggestions, please let me know.
Thanks,
Farris
RStudio Cloud Project: https://rstudio.cloud/project/258421
Shinyio link: https://ferrouscraddock.shinyapps.io/Interactive_Weather_App/
I tried to provide the link to the webpage being scraped but received an error that new users can only include 2 links. Sorry.