Use Shiny to collect data from users in Google Sheet - r

Question

I would like to use a Shiny interface to collect data from user inputs, such as in this Medium Article
The article is written for the googlesheets package, but we now need to use googlesheets4.
I think my code will not work due to may lay of understanding of reactive elements.
#load libraries
library(shiny)
library(shinydashboard)
library(googlesheets4)
library(DT)
ui <- fluidPage(
# Define UI
ui <- fluidPage(
# App title ----
titlePanel("Seflie Feedback"),
# Sidebar layout with input and output definitions ----
sidebarLayout(
# Sidebar to demonstrate various slider options ----
sidebarPanel(
# Input: Overall Rating
sliderInput(inputId = "helpful",
label = "I think this app is helpful",
min = 1,
max = 7,
value = 3),
actionButton("submit", "Submit")
),
mainPanel(
))
)
)
server <- function(input, output, session) {
# Reactive expression to create data frame of all input values ----
sliderValues <- reactive({
usefulRating <- input$helpful
Data <- data.frame(
Value = as.character(usefulRating),
stringsAsFactors = FALSE)
})
#This will add the new row at the bottom of the dataset in Google Sheets.
observeEvent(input$submit, {
MySheet <- gs4_find() #Obtain the id for the target Sheet
MySheet <- gs4_get('https://docs.google.com/spreadsheets/d/162KTHgd3GngqjTm7Ya9AYz4_r3cyntDc7AtfhPCNHVE/edit?usp=sharing')
sheet_append(MySheet , data = Data)
})
}
shinyApp(ui = ui, server = server)
I replaced the gs4_get() with the link rather than the ID to support you in helping me. If you are not able to access the link, you can replace the link with a google sheet ID from your own sheets temporarily.
When I run the code, I see the following: Warning: Error in is.data.frame: object 'Data' not found.
When I replace the usefulRating <- input$helpful with usefulRating <- 4 or usefulRating <- 5 or some other value, the data writes to the Sheet.
Thanks for any insights :)

Answer 1

#load libraries
library(shiny)
library(shinydashboard)
library(googlesheets4)
library(DT)
ui <- fluidPage(
titlePanel("Seflie Feedback"),
sidebarLayout(
sidebarPanel(
#This is where a user could type feedback
textInput("feedback", "Plesae submit your feedback"),
),
#This for a user to submit the feeback they have typed
actionButton("submit", "Submit")),
mainPanel())
server <- function(input, output, session) {
textB <- reactive({
as.data.frame(input$feedback)
})
observeEvent(input$submit, {
Selfie <- gs4_get('https://docs.google.com/spreadsheets/d/162KTHgd3GngqjTm7Ya9AYz4_r3cyntDc7AtfhPCNHVE/edit?usp=sharing')
sheet_append(Selfie, data = textB())
})
}
shinyApp(ui = ui, server = server)