Update app.R

app.R

@@ -198,15 +198,16 @@ server <- function(input, output) {
   # For the table
   output$contents <- renderTable({
     
-    # input$file1 will be NULL initially. After the user selects
-    # a file, it will be a data frame with 'name', 'size', 'type', and 'datapath' variables.
-    inFile <- input$file1
-    
-    if (is.null(inFile))
-      return(NULL)
     
-    # Read the file from the input$file1 path and return it
-    dataset <- readr::read_delim(inFile$datapath,delim='\t')
+   # a file, it will be a data frame with 'name', 'size', 'type', and 'datapath' variables.
+   # Use default file if no file is uploaded
+    file_path <- if (is.null(input$file1)) {
+      default_file_path
+    } else {
+      input$file1$datapath
+    }
+   
+    dataset <- readr::read_delim(file_path, delim='\t')
     head(dataset, n = 5)
   })