Passing outputId into ggplotly() - r

Question

I've just started at an internship where my first task is to improve a Shiny application by updating all existing ggplot graphs into Plotly graphs. I'm pretty new to R and Shiny, so I'm having a couple of issues getting started.
Currently, one of the graphs in this application are generated as follows:
output$barBoxPlot <- renderUI({
plotOutput("Barplot", width = 700, height = 300
, click = "plot_click"
, hover = "plot_hover"
, brush = "plot_brush")
})
Where "Barplot" is an outputId that corresponds to a ggplot graph generated in another part of the code.
I'm trying to plot this graph ("Barplot") as a Plotly graph, using the ggplotly() function, using something like this:
output$barBoxPlot <- renderPlotly({
ggplotly(<insert graph here>)
})
However, I cannot figure out how to pass in the "Barplot" parameter (which is an outputId) into ggplotly(). ggplotly takes in an instance of a ggplot graph, and not an outputId.
Is there any way to pass in an outputId into ggplotly()?
Thank you!

Answer 1

Would've put this in a comment but can't to that yet because of reputation:
There are multiple ways to solve this wihtout trying to pass an outputID to ggplotly().
In the reactive that is in the output$Barplot <- renderPlot(this_reactive_here()) , use ggplotly() directly (if you don't need the original output$barBoxPlot
Create a function or a reactive that takes a ggplot object and only does return(ggplotly(x)) , then put that into your renderPlotly()
EDIT for clarification on 2:
The Barplot that is in plotOutput should have a server entry that looks something like this:
output$Barplot <- renderPlot({
ggplot(data, aes(...)) # etc
})
Take the code inside and put it in a reactive, like this:
barplot_ggplot <- reactive({
ggplot(data, aes(...)) # etc
})
Then you can use it in the output$Barplot as barplot_ggplot() and in the renderPlotly() as ggplotly(barplot_ggplot()).
I hope that's a little bit clearer.