Date format in ggplotly tooltip

Question

I use ggplotly to show an interactive time series chart. The x axis is in the date format, but the tool tip of the hover in plotly converts the date format to a numerical value (screenshot attached). Any ideas on how to get the date to display as a suitable date in the tooltip?

The following is a short snippet of code:

 output$ggplot <- renderPlotly({

plotbycity<-df_postgres %>% group_by(city, date, bedroooms) %>%
  filter(city %in% input$checkGroup & bedroooms==input$radio) %>%
  summarise(count=n(),rent=median(rent)) %>%
  ungroup() 

plotbycity$date<-as.Date(plotbycity$date)


# Error handling
plotbycity<-plotbycity[!is.na(plotbycity$city),]
if (is.null(plotbycity)) return(NULL)

#plotbycity<-ungroup(plotbycity)
#dat <- dat[c("rent", "bedroooms", "date", "City")]
#dat <- melt(dat,id.vars=c("date", "City", "bedroooms"),na.rm=TRUE)   #

# draw the line plot using ggplot
 gg <-ggplot(plotbycity, aes(x = date, y = rent, group = city, color = city,
                             text = paste('obs: ', count))) +
  geom_line() +
  ggtitle("Monthly Rents")
#   #theme_hc(bgcolor = "darkunica") +
#   #scale_fill_hc("darkunica")

 p <- ggplotly(gg, tooltip = c("x", "y", "text"))
 p[![enter image description here][1]][1]

Answer 1

text , , text, ggplot. as.Date <br> html :

# draw the line plot using ggplot
gg <-ggplot(plotbycity, aes(x = date, y = rent, group = city, color = city,
    text = paste('Rent ($):', rent,
                 '<br>Date: ', as.Date(date),
                 '<br>Obs: ', count))) +
    geom_line() +
    ggtitle("Monthly Rents")

p <- ggplotly(gg, tooltip = c("text"))

, !