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Create A Point Of Sales System With Laravel, Vue and Stripe – Part 1

What Is A Point Of Sales System?

Creating web apps for the fun of it is cool, but we all need to get paid right?! This new series explores how to create a point of sales system with Laravel, Vue.js and the Stripe API. A point of sales system (or POS) is software solution that allows you to process money. In this case we will use Stripe to process credit/debit cards as well as manage inventory. Using a fullstack Laravel and Vue.js application we can collect money, send invoices and get paid all in one location. By the time this series is over you will have used:

  • Laravel Passport
  • Laravel Socialite
  • Stripe Charge API
  • Stripe Product API
  • Stripe Subscription API


All of the source code is available at https://github.com/mastashake08/laravel-vue-pos. In part one I explain what it is we are building today as well as setting up the ground work for the future. Watch the video below and don’t forget to subscribe to the channel and share the video! Lastly don’t forget to check out the live version right here! Now on to part 2.

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Create A Point Of Sales System With Vue/Laravel + Stripe

Point Of Sales In The Palm Of Your Hand

In today’s tutorial I will be creating a point of sales system utilizing Vue and Laravel with Stripe being our payment processor. The program will allow a stripe account holder to take payments and if on mobile will allow them to scan the card via the device’s camera. It will utilize Laravel Passport for secure API calls and Stripe to handle the payments.

Installing The Dependencies

The app uses two dependencies as of now and those are Stipe and Laravel Passport install them using composer
 

composer require laravel/passportstripe/stripe-php

Now run the migrations (I’m using Laravel 5.5 so the packages are auto-discovered)

php artisan migrate

Now open your app/User.php model and edit the following

<?php
namespace App;
use Laravel\Passport\HasApiTokens;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
class User extends Authenticatable
{
    use HasApiTokens, Notifiable;
}

Next register the Passport routes in your AuthServiceProvider

<?php
namespace App\Providers;
use Laravel\Passport\Passport;
use Illuminate\Support\Facades\Gate;
use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;
class AuthServiceProvider extends ServiceProvider
{
    /**
     * The policy mappings for the application.
     *
     * @var array
     */
    protected $policies = [
        'App\Model' => 'App\Policies\ModelPolicy',
    ];
    /**
     * Register any authentication / authorization services.
     *
     * @return void
     */
    public function boot()
    {
        $this->registerPolicies();
        Passport::routes();
    }
}

Register the api driver in config/auth.php

'guards' => [
    'web' => [
        'driver' => 'session',
        'provider' => 'users',
    ],
    'api' => [
        'driver' => 'passport',
        'provider' => 'users',
    ],
],

Lastly set the web middleware group

'web' => [
    // Other middleware...
    \Laravel\Passport\Http\Middleware\CreateFreshApiToken::class,
],

Controller

This application only needs one external controller

php artisan make:controller StripeController

This controller will only contain 2 methods __construct() and charge(). The __construct method will set the StripeApiKey and the charge method actually makes the charge

<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
class StripeController extends Controller
{
 //
 public function __construct(){
 \Stripe\Stripe::setApiKey(env('STRIPE_SECRET'));
 }
public function charge(Request $request){
 try {
 // Use Stripe's library to make requests...
 $token = \Stripe\Token::create(array(
 "card" => array(
 "number" => $request->card['card_number'],
 "exp_month" => $request->card['expiry_month'],
 "exp_year" => $request->card['expiry_year'],
 "cvc" => $request->card['cvv']
 )
 ));
 \Stripe\Charge::create(array(
 "amount" => $request->amount * 100,
 "currency" => "usd",
 "source" => $token, // obtained with Stripe.js
 "description" => $request->description,
 "receipt_email" => $request->email
 ));
 return response()->json([
 'success' => true
 ]);
 } catch(\Stripe\Error\Card $e) {
 // Since it's a decline, \Stripe\Error\Card will be caught
 return response()->json($e->getJsonBody());
 } catch (\Stripe\Error\RateLimit $e) {
 // Too many requests made to the API too quickly
 return response()->json($e->getJsonBody());
 } catch (\Stripe\Error\InvalidRequest $e) {
 // Invalid parameters were supplied to Stripe's API
 return response()->json($e->getJsonBody());
 } catch (\Stripe\Error\Authentication $e) {
 // Authentication with Stripe's API failed
 // (maybe you changed API keys recently)
 return response()->json($e->getJsonBody());
 } catch (\Stripe\Error\ApiConnection $e) {
 // Network communication with Stripe failed
 return response()->json($e->getJsonBody());
 } catch (\Stripe\Error\Base $e) {
 // Display a very generic error to the user, and maybe send
 // yourself an email
 return response()->json($e->getJsonBody());
 } catch (Exception $e) {
 // Something else happened, completely unrelated to Stripe
 return response()->json($e->getJsonBody());
 }
 }
}

The controller is now finished let’s create the API routes

API Routes

Open the routes/api.php file and add the following routes

<?php
use Illuminate\Http\Request;
/*
|--------------------------------------------------------------------------
| API Routes
|--------------------------------------------------------------------------
|
| Here is where you can register API routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| is assigned the "api" middleware group. Enjoy building your API!
|
*/
Route::middleware('auth:api')->get('/user', function (Request $request) {
 return $request->user();
});
Route::middleware('auth:api')->post('/charge','StripeController@charge');

The backend is now complete now for the front end.

Vue Component

Get rid of the example component and create a new one called ChargeComponent and add the following content

<template>
 <div class="container">
 <div class="row">
 <div class="col-md-8 col-md-offset-2">
 <div class="panel panel-default">
 <div class="panel-heading">Make A Charge</div>
<div class="panel-body">
 <fieldset>
 <div class="form-group">
 <label class="col-sm-3 control-label" for="amount">Amount</label>
 <div class="col-sm-9">
 <input type="number" class="form-control" id="amount" placeholder="Amount To Charge" v-model="amount">
 </div>
 </div>
 <div class="form-group">
 <label class="col-sm-3 control-label" for="email">Email</label>
 <div class="col-sm-9">
 <input type="email" class="form-control" id="email" placeholder="Email Receipt" v-model="email">
 </div>
 </div>
 <div class="form-group">
 <label class="col-sm-3 control-label" for="description">Description</label>
 <div class="col-sm-9">
 <input type="text" class="form-control" id="description" placeholder="Credit Card Description" v-model="description">
 </div>
 </div>
 <div class="form-group">
 <label class="col-sm-3 control-label" for="card-number">Card Number</label>
 <div class="col-sm-9">
 <input type="text" class="form-control" name="card-number" id="card-number" placeholder="Debit/Credit Card Number" autocomplete="cc-number" v-model="card.card_number">
 </div>
 </div>
 <div class="form-group">
 <label class="col-sm-3 control-label" for="expiry-month">Expiration Date</label>
 <div class="col-sm-9">
 <div class="row">
 <div class="col-xs-3">
 <select class="form-control col-sm-2" name="expiry-month" id="expiry-month" autocomplete="cc-exp-month" v-model="card.expiry_month">
 <option>Month</option>
 <option value="01">Jan (01)</option>
 <option value="02">Feb (02)</option>
 <option value="03">Mar (03)</option>
 <option value="04">Apr (04)</option>
 <option value="05">May (05)</option>
 <option value="06">June (06)</option>
 <option value="07">July (07)</option>
 <option value="08">Aug (08)</option>
 <option value="09">Sep (09)</option>
 <option value="10">Oct (10)</option>
 <option value="11">Nov (11)</option>
 <option value="12">Dec (12)</option>
 </select>
 </div>
 <div class="col-xs-3">
 <select class="form-control" name="expiry-year" autocomplete="cc-exp-year" v-model="card.expiry_year">
 <option value="17">2017</option>
 <option value="18">2018</option>
 <option value="19">2019</option>
 <option value="20">2020</option>
 <option value="21">2021</option>
 <option value="22">2022</option>
 <option value="23">2023</option>
 </select>
 </div>
 </div>
 </div>
 </div>
 <div class="form-group">
 <label class="col-sm-3 control-label" for="cvv">Card CVV</label>
 <div class="col-sm-3">
 <input type="text" class="form-control" name="cvv" id="cvv" placeholder="Security Code" autocomplete="cvc" v-model="card.cvv">
 </div>
 </div>
 <div class="form-group">
 <div class="col-sm-offset-3 col-sm-9">
 <button type="button" class="btn btn-success" v-on:click="createCharge">Pay Now</button>
 </div>
 </div>
 </fieldset>
 </div>
 </div>
 </div>
 </div>
 </div>
</template>
<script>
 export default {
 mounted() {
 console.log('Component mounted.')
 },
 data(){
 return{
 card: {
 card_number: null,
 expiry_year: null,
 expiry_month: null,
 cvv: null
 },
 amount: 0,
 email: null,
 description: null
 }
 },
 methods: {
 createCharge: function(){
 axios.post('/api/charge',{card: this.card, amount: this.amount, description: this.description})
 .then(function(data){
 alert('Success!')
 }).catch(function(error){
 alert(error.message);
 });
 }
 }
 }
</script>

Edit the app.js file to match the following

/**
 * First we will load all of this project's JavaScript dependencies which
 * includes Vue and other libraries. It is a great starting point when
 * building robust, powerful web applications using Vue and Laravel.
 */
require('./bootstrap');
window.Vue = require('vue');
/**
 * Next, we will create a fresh Vue application instance and attach it to
 * the page. Then, you may begin adding components to this application
 * or customize the JavaScript scaffolding to fit your unique needs.
 */
Vue.component('charge-component', require('./components/ChargeComponent.vue'));
const app = new Vue({
 el: '#app'
 });

now install the npm dependencies and run mix

npm install && npm run dev

Enjoy your new app! You can fork the source code here! Be sure to like/subscribe/share and if you want to show your support please check out the shop!

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Styling Our About Me Page With CSS

[callaction url=”https://www.youtube.com/user/JPlaya01″ background_color=”#333333″ text_color=”#ffffff” button_text=”Go Now” button_background_color=”#e64429″]Subscribe To My Youtube Page[/callaction]

Cascading Style Sheets

Cascading Style Sheets or CSS is the language that describes how HTML documents are displayed. In other words it is the language that styles the web. It is the 2nd cornerstone of web development, with the 3rd being javascript. Like with all my tutorials I will give you a brief introduction to the language and teach you the innerworks bit by bit over various demos.

Our Current Situation

If you have been following along then you should have a basic about me page built. Here is mine:

<!DOCTYPE html>
<html>
<head>
<title>About Jyrone Parker</title>
</head>
<body>
<h1>Hi I Am Jyrone Parker</h1>
<img src="https://en.gravatar.com/userimage/70717632/53adbdecac04d4ffbe3449993c901a73.jpg?size=200"/>
<audio loop autoplay>
<source src="http://freesound.org/data/previews/353/353234_3162775-lq.mp3" type="audio/mpeg">
Your browser does not support the audio element.
</audio>
<p> I am CEO and lead engineer at J Computer Solutions LLC, a consultancy that places software and DevOps engineers at companies in need.
<div itemscope itemtype="http://schema.org/LocalBusiness">
<h1 itemprop="name">Contact Me</h1>
Phone: <span itemprop="telephone">
<a href="tel:+18594024863"> 859-402-4863</a>
</span>
</div>
</p>
</body>
</html> 

As it stands currently this page is UGLY! I’m going to import a CSS framework to start off with. A framework basically is a bunch a code that boilerplates stuff for you, so you can focus more on the core of what you are trying to accomplish. My framework of choice is Bootstrap the way you add CSS code to your HTML markup is via the <link> tag. In the head of your document add the following:

<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">

This will load the latest bootstrap css into your webpage. Notice the href does not have to be a remote address. If you have a folder called css/ and downloaded the bootstrap code you can call it like href=”css/bootstrap.css”.

Prepping The HTML

Before we do any styling we need to add a few <meta> tags to the top of the <head> section for Bootstrap to work properly. Please add  the following right below the <head> tag:


<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">

Elements, IDs & Classes

CSS can interact with the HTML document via elements, ids, and classes. An Element is a tag such as <body> or <h1>. An id points to one specific tag on an HTML document and ONLY one such as <title id=”about-me-page-title”>. A class applies a style to every element with that class AND everything in between that element such as


<div class="cool-section">
<p id="cool-paragraph">
Some text goes here
</p>
</div>

In this example both <div> AND  <p> have the class “cool-section” applied to it because <p> is a child of <div>; However <p> has addition styling that <div> does not because of its id.
 

Creating main.css

I know I said we would be using Bootstrap to do our styling, but I want to make one addition to the background color of the body. Create a folder called css and in that folder create a folder called main.css. In a CSS file the syntax is as follows


element{
property:value;
}

or


#id{
property:value;
}
.class{
property:value;
}

Since I want to change the body element and I want to change the background color to this nice gray I like I put in the following rule:<pre><code class=”language-css”>


body{
background-color: #667;
}

If you are wondering how #667 = gray, it’s because HTML uses hexadecimal for color, here is a good reference if you need it http://www.w3schools.com/colors/colors_picker.asp. Save the file and right below the Bootstrap link place this link

<link rel="stylesheet" href="css/main.css">

Navigation Bar

One of the bootstrap components is the nav bar. HTML5 added a <nav> tag that defines a set of navigation links for your document. Copying the example snippet from the Bootstrap website and removed what wasn’t needed.


<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Jyrone Parker</a>
</div>
</div><!-- /.container-fluid -->
</nav>

Ignore all of the data- attributes right now that’s javascript related, but notice all of the classes in this section these are pre-defined Bootstrap styles. I suggest getting familiar with the documentation. Add this nav bar right below your opening <body> tag refresh your page and notice the changes.
 

Styling Content

The first thing I want to do is make my content a fixed width, this will give it a consistent look across devices. To do this I will wrap all my content (minus nav) in a div with class container. I also want everything in this div to stand out. Luckily Bootstrap has a class for content you want to stand out it’s called jumbotron. Lastly we want all text to be centered, Bootstrap provides a text-center defintion.
<div class=”container jumbotron text-center”>
//previous code
</div>
The finishing touch will be preformed on our profile picture. Bootstrap offers some img classes to help us. On the <img> tag add the following classes:


<img class="img img-rounded" src="https://en.gravatar.com/userimage/70717632/53adbdecac04d4ffbe3449993c901a73.jpg?size=200"/>

Now save and refresh the page, notice how much better it looks? In case you missed anything here is what my page markup looks like:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
<title>About Jyrone Parker</title>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<link rel="stylesheet" href="css/main.css">
</head>
<body id="">
<nav class="navbar navbar-default">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="#">Jyrone Parker</a>
    </div>
  </div><!-- /.container-fluid -->
</nav>
<div class="container">
	<div class="jumbotron text-center">
<h1>Hi I Am Jyrone Parker</h1>
<img class="img img-rounded" src="https://en.gravatar.com/userimage/70717632/53adbdecac04d4ffbe3449993c901a73.jpg?size=200"/>
<audio loop autoplay>
<source src="http://freesound.org/data/previews/353/353234_3162775-lq.mp3" type="audio/mpeg">
Your browser does not support the audio element.
</audio>
<p>
I am CEO and lead engineer at J Computer Solutions LLC, a consultancy that places software and DevOps engineers at companies in need.
<div itemscope itemtype="http://schema.org/LocalBusiness">
	<h1 itemprop="name">Contact Me</h1>
		Phone: <span itemprop="telephone"><a href="tel:+18594024863">
859-402-4863</a></span>
</div>
</div>
</p>
</div>
</body>
</html>

You can also see my latest code on Github. Next we are going to add some interactiveness with some javascript!! If you haven’t already please subscribe to my blog via email to get notifications on when I post. If you have any questions please leave them in the comments!d