How to build scalable web applications using Vue.js and Ruby

How to build scalable web applications using Vue.js and Ruby language

In recent years, with the development of web applications and the growing demand, building scalable web applications has become an important topic . As a lightweight JavaScript front-end framework, Vue.js provides a flexible, efficient and scalable solution. At the same time, Ruby, as a concise and easy-to-read programming language, can be used to construct powerful back-end systems. This article will introduce how to combine Vue.js and Ruby language to build scalable web applications, and attach corresponding code examples.

First, we need to create a basic project structure. In the root directory of the project, use a Ruby command line tool (such as Bundler) to create a new Ruby application and install the necessary dependencies:

bundle init

Then, add in the Gemfile file Necessary Ruby libraries and frameworks, such as Ruby on Rails:

gem 'rails'

Run the following command to install dependencies:

bundle install

Next, we need to create a simple Ruby on Rails controller and view for Render our Vue.js application. Execute the following command in the console:

rails generate controller Welcome index

Then, open the generated app/controllers/welcome_controller.rb file and add the following code:

class WelcomeController < ApplicationController
  def index
  end
end

Next, create a A view file named index.html.erb with the path app/views/welcome and add the following code:

<h1>Welcome#index</h1>
<div id="app"></div>

## in the root directory Create a JavaScript file named app.js in the #app/assets/javascripts folder and add the following content:

import Vue from 'vue'
import App from './app.vue'

document.addEventListener('DOMContentLoaded', () => {
  const app = new Vue({
    el: '#app',
    render: h => h(App)
  }).$mount()
})

app. The Vue component of vue, the path is app/assets/javascripts, and add the following code:

<template>
  <div>
    <h2>{{ message }}</h2>
    <button @click="increment">{{ count }}</button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      message: 'Hello Vue.js!',
      count: 0
    }
  },
  methods: {
    increment() {
      this.count++
    }
  }
}
</script>

npm init -y
npm install --save-dev webpack webpack-cli vue-loader vue-template-compiler

webpack.config.js and add the following content:

const path = require('path')

module.exports = {
  entry: './app/assets/javascripts/app.js',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'public')
  },
  module: {
    rules: [
      {
        test: /.vue$/,
        use: 'vue-loader'
      }
    ]
  }
}

app/views/welcome/index.html.erb file and replace the previous

npx webpack --mode development

rails server

http://localhost:3000 in your browser, you will see a welcome page with a Vue.js counter button. When you click the button, the counter value will be incremented.

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