added creating and viewing PDF for easier testing

.gitignore

 node_modules/
+temporary/
\ No newline at end of file

custom-pdf.js

+const router = require("express").Router()
+const path = require('path')
+let ADocEditor = require("./dist/assets/a-doc-editor.js")
+
+var inProgress = false
+let fileName = path.join( __dirname, "temporary", "temp.pdf" )
+router.post( "/generate", async function(req, res){
+    if (inProgress){
+        console.log('server busy')
+        res.status(200).json({ success: false, message: "Server Busy" })
+        return
+    }
+    try{
+        inProgress = true
+        console.clear()
+        let editor = new ADocEditor()
+        console.log('editor', editor)
+        let result = await editor.generatePDF(fileName)
+        console.log('result:', result)
+        inProgress = false
+        res.status(200).json( { success: true, message: "Successfull", fileName: fileName } )
+    }catch(err){
+        console.log(err)
+        inProgress = false
+        res.status(200).json({ message: "Failed" })
+    }
+} )
+
+router.get("/display", async function(req, res){
+    try{
+        console.log('reaching')
+        res.sendFile( fileName )
+    }catch(err){
+        console.log(err)
+        res.status(200).json({ message: "Failed" })
+    }
+})
+
+module.exports = router
\ No newline at end of file

dist/assets/a-doc-editor.js

@@ -621,9 +621,20 @@ var ADocEditor = function (customConfig) {
         }
     }
 
-    function generatePDF(file) {
+    async function generatePDF(file) {
         if (isModule) {
+            try{
+                const { jsPDF } = require("jspdf")
                 console.log('to generate PDF on Server side:', file)
+                const doc = new jsPDF('p', 'px', [ config.pageSetup.canvasWidth, config.pageSetup.canvasHeight ]);
+                doc.text("Hello World", 10, 10)
+                doc.save(file)
+                return file
+            }catch(err){
+                console.log(err)
+                return
+            }
+
         } else {
             console.log('to generate PDF on browser:', file)
         }

generate-pdf.js

-let ADocEditor = require("./dist/assets/a-doc-editor.js")
-
-var counter = 0
-module.exports = async function(req, res){
-    try{
-        console.clear()
-        let editor = new ADocEditor()
-        console.log('generating PDF', ++counter, editor)
-        editor.generatePDF('temp.pdf')
-
-        res.status(200).json( { success: true, message: "Successfull" } )
-    }catch(err){
-        console.log(err)
-        res.status(200).json({ message: "Failed" })
-    }
-}
\ No newline at end of file

index.js

@@ -5,7 +5,7 @@ const path = require("path");
 const app = express()
 app.use( express.json() )
 
-app.post( '/generate-pdf', require("./generate-pdf") )
+app.use( '/pdf', require("./custom-pdf") )
 app.use( express.static( path.join( __dirname, 'dist' ) ) )