The missing link between Laravel and Vue.
Status: alpha
RC planned for Q4 / 2022

Try the demo project

About Double

Double drastically simplifies writing Vue applications with a Laravel backend. It does so, by removing all of the API boilerplate code you have to write.

How does it work?

Traditionally, your API code lives in App\Http\Controllers\UsersController. You also have to create an entry in your routes file, and write some frontend boilerplate code to call that API.

When using Double, you place your API code next to your vue store / component files. For example you would have your vue store in stores/users.ts and your API code for that store in stores/users.php.

This let's Double automatically associate your API code with your frontend code. By creating closeness in the file system, you don't need to manually connect your server-side code with your frontend.

🚀 Double also analyzes your PHP code and intelligently creates TypeScript definitions!

Why?

• Double removes the need for any API boilerplate code
• Double automatically gives you TypeScript types for your backend API
• Double integrates with pinia

Watch the introduction video

Code says a thousand words

The following two files are everything you need for having a vue component which displays all users of your app:

/double/src/components/users.php

<?php
return new class {
    public function getUsers()
    {
        // We return a static array here, but you can access all 
        // Laravel features here. Something like:
        //   return User::all();
        // would work as well.
        return [
          [
            'id' => 1,
            'username' => 'Quentin'
          ]
        ];
    }
};
?>

/double/src/components/users.vue

<template>
    <h2>Users</h2>
    <!--
      `Double` automatically loads and injects the response
       from the getUsers method into the users variable
     -->
    <div v-for="user in users">
        <strong>{{ user.username }}</strong> #{{ user.id }}
    </div>
</template>

<script lang="ts">
    import { defineComponent } from 'vue'
    import { useDouble } from "double-vue";

    export default defineComponent({
        async setup() {
            const double = await useDouble('/src/components/users')
            return {
                ...double,
            }
        },
    })
</script>

Yep, that's it! No need to write any API boilerplate code. All methods from the PHP file are intelligently mapped to your frontend code. Read on to discover more complex usage examples.

Demo

Before you start to use double in your own project, you can try out the demo project:

Open demo repository

The double demo is a dockerized Laravel application (using Laravel sail), so you can start to play with double in a few minutes.

Installation

This is an example of how you may give instructions on setting up your project locally. To get a local copy up and running follow these simple example steps.

1. Setup a new Laravel project, or use an existing one

Vue setup

1. Setup a vue project in the double subfolder
   1. Install the vue cli
   2. Go to your laravel installation
   3. Create a new vue project vue create double. Make sure to select "Manually select features" and then check "Typescript" and "vue3".
2. Setup double in the new vue project
   1. cd double
   2. npm install double-vue
   3. In src/main.ts add the following lines before the createApp(App) call:

      import { installDouble } from 'double-vue'
      
      installDouble('http://localhost/api/double', 'webpack')

      Make sure to replace localhost with the domain that your laravel project is running at
   4. Add this vue.config.js file to the root of the double folder:

      const { defineConfig } = require('@vue/cli-service')
      const { doubleWebpackPlugin } = require('double-vue/bundler')
      const path = require("path")
      
      module.exports = defineConfig({
        transpileDependencies: true,
        configureWebpack: {
          plugins: [
              doubleWebpackPlugin()
          ]
        }
      })

   5. npm run serve

Laravel setup

1. Go back to your laravel installation
2. composer require sopamo/double-laravel
3. php artisan vendor:publish --provider="Sopamo\Double\DoubleServiceProvider"

Use double

1. Create the two example files from above (users.php and users.vue) in the double/src/components folder to get a working example of double.
2. Use your new users.vue component by embedding it with a <suspense> component like so:

   <suspense>
     <users />
   </suspense>
   

Questions?

If any of the steps above are unclear, you can have a look at the demo project or open a discussion

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Usage

PHP naming conventions

The code you write in the PHP files next to your frontend files always have to return a single class:

<?php
use Illuminate\Http\Request;
use App\Models\User;

return new class {
    public function getUsers()
    {
      return  Users::all();
    }

    public function storeUser(Request $request) {
      $user = new User();
      $user->username = $request->input('username');
      $user->save();
    }
};
?>

Define the data that you want to receive as state with methods starting with get, followed by an uppercase letter. This data will automatically be fetched when Double initializes.

All other public methods are available as actions:

import { useDouble } from 'double-vue'

const double = useDouble('/src/pages/users')

// This will contain the return value of the getUsers method
console.log(double.users)

// This will call the storeUser method
double.storeUser({username: 'Bob Marley'})

Refreshing the state

Sometimes you want to update the Double state with the latest data from the server. Use the refresh method for that:

double.refresh()

Parameters for state methods

Sometimes you want to configure state fetching methods dynamically, for example if you don't want to return all users, but only users which match a given query:

import { useDouble } from 'double-vue'

const userQuery = ref('Bob')

const double = useDouble('/src/pages/users', {
  getUsers: {
    search: userQuery
  }
})

// This will automatically trigger a refresh, then loading all users which match the query "Johnny"
userQuery.value = 'Johnny'

You can use the normal Laravel methods to access the search parameter:

$request->input('search') // Contains "Bob"

Sending custom headers

If you are not using cookie-based authentication, you will want to set an authorization header in the requests that Double sends:

import { setCustomHeader } from 'double-vue'

setCustomHeader('Authorization', 'Bearer ' + yourToken)

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Roadmap

• PHPStorm setup instructions
• Create a screencast
• Finalize readme
• Add support to configure the data requests in pinia
• Finalize the example project
• Unify double between regular usage and pinia
• Fix HMR breaking in sample project
• Add support for the refresh method outside of pinia
• Error handling
• Ignore private / protected php methods

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Contributing

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

If you have a suggestion on how to improve Double, please fork the repo and create a pull request. You can also simply open an issue with any questions or bugs you find. Don't forget to give the project a star! Thanks again!

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License

Distributed under the MIT License. See LICENSE.txt for more information.

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