ELRIWebSystem/Learning/vue/webpack/docs/backend.md

Integrating with Backend Framework

If you are building a purely-static app (one that is deployed separately from the backend API), then you probably don't even need to edit config/index.js. However, if you want to integrate this template with an existing backend framework, e.g. Rails/Django/Laravel, which comes with their own project structures, you can edit config/index.js to directly generate front-end assets into your backend project.

Let's take a look at the default config/index.js:

// config/index.js
'use strict'
const path = require('path')

module.exports = {
  dev: {
    / Paths
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',
    proxyTable: {},

    // Various Dev Server settings
    host: 'localhost',
    port: 8080, 

    // skipping other options as they are only convenience features
  },
  build: {
    // Template for index.html
    index: path.resolve(__dirname, '../dist/index.html'),

    // Paths
    assetsRoot: path.resolve(__dirname, '../dist'),
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',

    productionSourceMap: true,
    
    // skipping the rest ...
  },
}

Inside the build section, we have the following options:

build.index

Must be an absolute path on your local file system.

This is where the index.html (with injected asset URLs) will be generated.

If you are using this template with a backend-framework, you can edit index.html accordingly and point this path to a view file rendered by your backend app, e.g. app/views/layouts/application.html.erb for a Rails app, or resources/views/index.blade.php for a Laravel app.

build.assetsRoot

Must be an absolute path on your local file system.

This should point to the root directory that contains all the static assets for your app. For example, public/ for both Rails/Laravel.

build.assetsSubDirectory

Nest webpack-generated assets under this directory in build.assetsRoot, so that they are not mixed with other files you may have in build.assetsRoot. For example, if build.assetsRoot is /path/to/dist, and build.assetsSubDirectory is static, then all Webpack assets will be generated in path/to/dist/static.

This directory will be cleaned before each build, so it should only contain assets generated by the build.

Files inside static/ will be copied into this directory as-is during build. This means if you change this prefix, all your absolute URLs referencing files in static/ will also need to be changed. See Handling Static Assets for more details.

build.assetsPublicPath

This should be the URL path where your build.assetsRoot will be served from over HTTP. In most cases, this will be root (/). Only change this if your backend framework serves static assets with a path prefix. Internally, this is passed to Webpack as output.publicPath.

build.productionSourceMap

Whether to generate source maps for production build.

dev.port

Specify the port for the dev server to listen to.

dev.proxyTable

Define proxy rules for the dev server. See API Proxying During Development for more details.