Update app.R

app.R

@@ -158,54 +158,24 @@ output$table <- renderReactable({
 
 # activate download buttons
 output$down_nodes <- downloadHandler(
-  filename = function(){
-    paste("Node",".csv",sep = "")
+  filename = function() {
+    paste("Nodes.csv.gz", sep = "") 
   },
-  content = function(file){
-    # Show the progress alert
-      progressSweetAlert(
-        session = session,
-        id = "download_progress",
-        title = "Generating Nodes CSV...",
-        display_pct = TRUE,
-        value = 0
-      )
-      
-      # Simulate progress updates
-      for (i in seq(1, 100, by = 20)) {
-        Sys.sleep(0.5)  # Simulate processing time
-        updateProgressBar(session, id = "download_progress", value = i)
-      }
-    
-    fwrite(nodes_df(),file,row.names = F)
-
-    closeSweetAlert(session)
+  content = function(file) {
+    gzfile_conn <- gzfile(file, "w") # compress file for faster download
+    fwrite(nodes_df(), gzfile_conn)
+    close(gzfile_conn)
   }
 )
 
 output$down_edges <- downloadHandler(
-  filename = function(){
-    paste("Edge",".csv",sep = "")
+  filename = function() {
+    paste("Edges.csv.gz", sep = "")
   },
-  content = function(file){
-    # Show the progress alert
-      progressSweetAlert(
-        session = session,
-        id = "download_progress",
-        title = "Generating Nodes CSV...",
-        display_pct = TRUE,
-        value = 0
-      )
-      
-      # Simulate progress updates
-      for (i in seq(1, 100, by = 20)) {
-        Sys.sleep(0.5)  # Simulate processing time
-        updateProgressBar(session, id = "download_progress", value = i)
-      }
-    
-    fwrite(edges_df(),file,row.names = F)
-
-    closeSweetAlert(session)
+  content = function(file) {
+    gzfile_conn <- gzfile(file, "w") # compress file for faster download
+    fwrite(edges_df(), gzfile_conn)
+    close(gzfile_conn)
   }
 )