Initial setup done

.gitignore

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+node_modules/
+playground/
+server.js

Readme.md

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+#FLO Greeting Cards

index.js

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+const path = require('path');
+const express = require('express');
+const bodyParser = require('body-parser');
+
+const Client = require('bitcoin-core');
+const client = require('./server')
+
+const crypto = require('crypto');
+const routes = require('./routes');
+
+const cookieParser = require('cookie-parser');
+const session = require('express-session');
+const flash =  require('connect-flash');
+const validator = require('express-validator');
+
+const port = process.env.PORT || 3001;
+
+const app = express();
+
+app.set('view engine', 'ejs');
+
+const middleware = [
+  express.static(path.join(__dirname, 'public')),
+  bodyParser.urlencoded({extended:true}),
+  cookieParser(),
+  session({
+    secret: 'super-secret-key',
+    key: 'super-secret-cookie',
+    resave: false,
+    saveUninitialized: false,
+    cookie: { maxAge: 60000 }
+  }),
+  validator(),
+  flash()
+]
+
+app.use(middleware);
+
+app.use('/', routes);
+
+app.use((req, res,next)=>{
+  res.status(404).send("Page Not Found");
+});
+
+app.use((err, req, res, next)=>{
+  console.log(err);
+  res.status(500).send("Page Broke!");
+});
+
+app.listen(port, ()=>{
+  console.log("Greetings app running on port "+port);
+});

package.json

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+{
+  "name": "flocards",
+  "version": "1.0.0",
+  "description": "A greeting card generating app based on FLO Blockchain",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "browserify": "browserify public/js/main.js -o public/js/bundle.js",
+    "watch": "watchify public/js/main.js -o public/js/bundle.js"
+  },
+  "author": "Abhishek Sinha",
+  "license": "ISC",
+  "dependencies": {
+    "axios": "^0.18.0",
+    "bitcoin-core": "^2.0.0",
+    "body-parser": "^1.18.3",
+    "browserify": "^16.2.2",
+    "connect-flash": "^0.1.1",
+    "cookie-parser": "^1.4.3",
+    "ejs": "^2.6.1",
+    "express": "^4.16.3",
+    "express-layout": "^0.1.0",
+    "express-session": "^1.15.6",
+    "express-validator": "^5.3.0",
+    "helmet": "^3.13.0",
+    "html-pdf": "^2.2.0",
+    "lodash": "^4.17.10",
+    "node-fetch": "^2.2.0",
+    "watchify": "^3.11.0"
+  }
+}

public/js/bundle.js

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+(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
+$(document).on('click', '#bc-btn', function() {
+    $.ajax({
+      type: 'post',
+      url: '/write',
+      success: function(data) {
+        console.log(data);
+      },
+      error: function(jqXHR, textStatus, errorThrown) {
+        console.log(textStatus, errorThrown);
+     } 
+    });
+  });
+},{}]},{},[1]);

public/js/main.js

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+$(document).on('click', '#bc-btn', function() {
+    $.ajax({
+      type: 'post',
+      url: '/write',
+      success: function(data) {
+        console.log(data);
+      },
+      error: function(jqXHR, textStatus, errorThrown) {
+        console.log(textStatus, errorThrown);
+     } 
+    });
+  });

routes.js

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+const express = require('express');
+const router = express.Router();
+const { check, validationResult } = require('express-validator/check')
+const { matchedData } = require('express-validator/filter')
+const _ = require('lodash');
+const fetch = require('node-fetch');
+const client = require('./server.js');
+
+var path = require('path')
+var fs = require('fs');
+var pdf = require('html-pdf');
+
+router.get('/', (req, res)=>{
+    res.render('index.ejs', {
+        data: {},
+        errors: {},
+        title: 'Welcome! Select a card of your choice.'
+    })
+})
+
+router.get('/write/:card_id', (req, res)=>{
+  res.render('write.ejs', {
+    data: {card_id: req.params.card_id},
+    errors: {},
+    title: 'Write your message'
+  })
+})
+
+router.post('/write', [check('_bdata').isLength({min:1}).withMessage('Please write some remarks!').trim(), 
+check('_cardid').isLength({min:1}).withMessage('Could not find the card id!').trim()],
+  (req,res)=>{
+    const errors = validationResult(req)
+    if(!errors.isEmpty()) {
+      return res.render('write', {
+          data: req.body,
+          errors: errors.mapped(),
+          title: 'Please Write your message'
+      })
+    }
+
+    const data = matchedData(req)
+
+    let remarks = data._bdata;
+    let card_id = data._cardid;
+
+    var toaddress = "oXCsMUyX3mLJEdnn8SXoH6gyPW9Jd6kjYu";
+    var amount = 1;
+
+    res.json({"txnid":"zdfjhdzjfhzhfjhzekjhfjhf", "card_id":card_id})
+    // try {
+    //     client.sendToAddress(toaddress, amount, "Greetings App", "REBC", false, false, 1, 'UNSET', remarks)
+    //     .then((txnid) => {
+    //       console.log(txnid)
+    //       res.json({"txnid":txnid, "card_id":card_id})
+    //     });
+    // }catch(err){
+    //     console.log("Unable to send FLO." + err.message);
+    // }
+
+    // req.flash('success', 'Your remarks was successfully entered.')
+    // res.redirect('/')
+
+  }
+)
+
+module.exports = router

server.example.js

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+const Client = require('bitcoin-core');
+const client = new Client({host: 'localhost', network: 'testnet', username: 'yourusername', password: 'yourpassword', port: 17313
+});
+
+module.exports = client;

templates/test.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>Happy Diwali</title>
+</head>
+<body>
+  <h1>
+    Happy Diwali to me 
+  </h1>
+  <img class="logo" src="{{image}}">
+</body>
+</html>

views/index.ejs

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+<% include partials/header.ejs %>
+
+<div class="container">   
+    <div class="card mb-3">
+        <a href="/write/Diwali2018"><img class="card-img-top" src="images/Diwali2018.jpg" alt="Card image cap"></a>
+        <div class="card-body">
+          <h5 class="card-title">Card title</h5>
+          <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
+          <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
+        </div>
+      </div>
+      <div class="card">
+          <a href="/write/hbd"><<img class="card-img-bottom" src="images/hbd.jpg" alt="Card image cap"></a>
+        <div class="card-body">
+          <h5 class="card-title">Card title</h5>
+          <p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>
+          <p class="card-text"><small class="text-muted">Last updated 3 mins ago</small></p>
+        </div>
+      </div>
+</div>
+
+
+<% include partials/footer.ejs %>

views/partials/footer.ejs

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+
+    <script src="js/bundle.js"></script>
+</body>
+</html>

views/partials/header.ejs

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+<!doctype html>
+<html lang="en">
+  <head>
+    <!-- Required meta tags -->
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+
+    <!-- Bootstrap CSS -->
+    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
+
+    <title><%=title%></title>
+  </head>
+  <body>
+
+  <nav class="navbar navbar-expand-sm bg-primary navbar-dark">
+    <a class="navbar-brand" href="#">Book of Records</a>
+  </nav>
+
+  <ul>
+    <li><a href="/">Home</a></li>
+    <li><a href="/write">Write a remarks</a></li>
+  </ul>

views/write.ejs

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+<% include partials/header.ejs %>
+
+<div class="container">
+<div class="form-header">
+  <% if (Object.keys(errors).length === 0) { %>
+    <h2>Please write a review about your experience here:</h2>
+  <% } else { %>
+    <h2 class="errors-heading">Oops, please correct the following:</h2>
+    <ul class="errors-list">
+      <% Object.values(errors).forEach(error => { %>
+        <li><%= error.msg %></li>
+      <% }) %>
+    </ul>
+  <% } %>
+</div>
+
+<% if(data.card_id) { %>
+
+  <div class="form-group">
+      <label for="_bdata">Your message:</label>
+      <textarea class="form-control" id="_bdata" name="_bdata"></textarea>
+
+      <input type="hidden" id="_cardid" name="_cardid" value="<%=data.card_id%>" >
+      <br>
+      <button type="submit" class="btn btn-primary" id="bc-btn">Submit</button>
+    </div>
+
+<%}%>
+
+</div> <!-- container-->
+
+<% include partials/footer.ejs %>