[HOLD] adapted web app for web deployment on GoogleCloud

.gcloudignore

@@ -0,0 +1,17 @@
+# This file specifies files that are *not* uploaded to Google Cloud Platform
+# using gcloud. It follows the same syntax as .gitignore, with the addition of
+# "#!include" directives (which insert the entries of the given .gitignore-style
+# file at that point).
+#
+# For more information, run:
+#   $ gcloud topic gcloudignore
+#
+.gcloudignore
+# If you would like to upload your .git directory, .gitignore file or files
+# from your .gitignore file, remove the corresponding line
+# below:
+.git
+.gitignore
+
+# Node.js dependencies:
+node_modules/

Dockerfile

@@ -0,0 +1,21 @@
+FROM python:3.7
+
+RUN apt-get update
+
+RUN curl -sL https://deb.nodesource.com/setup_lts.x | bash -
+RUN DEBIAN_FRONTEND=noninteractive apt-get install -y nodejs
+
+WORKDIR /app
+
+COPY . /app
+
+RUN apt-get install python3-pip -y
+RUN pip3 install --upgrade pip
+RUN pip3 install -r requirements.txt
+
+RUN rm -rf node_modules/*
+RUN npm install
+
+EXPOSE 8080
+
+CMD ["npm", "start"]

app.yaml

@@ -0,0 +1,2 @@
+runtime: custom
+env: flex

index.js

@@ -2,7 +2,7 @@ const express = require('express');
 const python = require('python-shell');
 
 const app = express();
-const PORT = process.env.PORT || 3000;
+const PORT = process.env.PORT || 8080;
 
 app.use(express.static('public'));
 app.use(express.json());
@@ -21,10 +21,12 @@ app.post('/math', (req, res) => {
 
   const option = {
     args: [input, isRad, isBinary],
+    scriptPath: '/app/',
     // args: [input, isRad, isBinary, isBinaryInput],
   };
 
   // TODO change to always listening python shell instead of creating and deleting everytime
+  const pyPath = path.join('', 'calculate.py');
   /* eslint-disable-next-line */
   const pyshell = new python('calculate.py', option);
 

main.js

@@ -16,6 +16,7 @@ function createWindow() {
   });
 
   window.loadURL('http://localhost:3000/');
+  window.loadFile('./public/index.html');
 }
 
 app.on('ready', createWindow);

public/serverScripts.js

@@ -62,7 +62,7 @@ async function calc() {
   dlist.appendChild(option);
 
   // calls node to perform the calculation over the route
-  const response = await fetch('http://localhost:3000/math', {
+  const response = await fetch('/math', {
     method: 'POST',
     body: JSON.stringify(input),
     headers: {