Vue 3 How to add plugin through vue-cli like from UI? - vue.js

With vue UI we can add vuex or vue-router plugin which will be automatically appended to the main file like bellow
createApp(App).use(store).use(router).mount('#app')
And creates file /router/index.js and /store/index.js with default template like bellow which is really nice.
import { createStore } from 'vuex'
export default createStore({
state: {
},
mutations: {
},
actions: {
},
modules: {
}
})
Is there any other alternative way(vue-cli or npm) to add new plugins with facilities described above? npm install just adds the dependencies(as expected).

You can add CLI plugins from the command line, using #vue/cli commands (i.e., vue add PLUGIN_NAME) run from the root directory of your project.
For example, these commands add Vuex and Vue Router to your Vue CLI generated project:
vue add vuex
vue add router
vue add looks for the plugin by prefixing #vue/cli-plugin- to the specified name. So the above command automatically installs #vue/cli-plugin-vuex and #vue/cli-plugin-router. You can find several other Vue CLI plugins on npm that can be installed the same way.

Related

Web3js fails to import in Vue3 composition api project

I've created a brand new project with npm init vite bar -- --template vue. I've done an npm install web3 and I can see my package-lock.json includes this package. My node_modules directory also includes the web3 modules.
So then I added this line to main.js:
import { createApp } from 'vue'
import App from './App.vue'
import Web3 from 'web3' <-- This line
createApp(App).mount('#app')
And I get the following error:
I don't understand what is going on here. I'm fairly new to using npm so I'm not super sure what to Google. The errors are coming from node_modules/web3/lib/index.js, node_modules/web3-core/lib/index.js, node_modules/web3-core-requestmanager/lib/index.js, and finally node_modules/util/util.js. I suspect it has to do with one of these:
I'm using Vue 3
I'm using Vue 3 Composition API
I'm using Vue 3 Composition API SFC <script setup> tag (but I imported it in main.js so I don't think it is this one)
web3js is in Typescript and my Vue3 project is not configured for Typescript
But as I am fairly new to JavaScript and Vue and Web3 I am not sure how to focus my Googling on this error. My background is Python, Go, Terraform. Basically the back end of the back end. Front end JavaScript is new to me.
How do I go about resolving this issue?
Option 1: Polyfill Node globals/modules
Polyfilling the Node globals and modules enables the web3 import to run in the browser:
Install the ESBuild plugins that polyfill Node globals/modules:
npm i -D #esbuild-plugins/node-globals-polyfill
npm i -D #esbuild-plugins/node-modules-polyfill
Configure optimizeDeps.esbuildOptions to use these ESBuild plugins.
Configure define to replace global with globalThis (the browser equivalent).
import { defineConfig } from 'vite'
import GlobalsPolyfills from '#esbuild-plugins/node-globals-polyfill'
import NodeModulesPolyfills from '#esbuild-plugins/node-modules-polyfill'
export default defineConfig({
⋮
optimizeDeps: {
esbuildOptions: {
2️⃣
plugins: [
NodeModulesPolyfills(),
GlobalsPolyfills({
process: true,
buffer: true,
}),
],
3️⃣
define: {
global: 'globalThis',
},
},
},
})
demo 1
Note: The polyfills add considerable size to the build output.
Option 2: Use pre-bundled script
web3 distributes a bundled script at web3/dist/web3.min.js, which can run in the browser without any configuration (listed as "pure js"). You could configure a resolve.alias to pull in that file:
import { defineConfig } from 'vite'
export default defineConfig({
⋮
resolve: {
alias: {
web3: 'web3/dist/web3.min.js',
},
// or
alias: [
{
find: 'web3',
replacement: 'web3/dist/web3.min.js',
},
],
},
})
demo 2
Note: This option produces 469.4 KiB smaller output than Option 1.
You can avoid the Uncaught ReferenceError: process is not defined error by adding this in your vite config
export default defineConfig({
// ...
define: {
'process.env': process.env
}
})
I found the best solution.
The problem is because you lose window.process variable, and process exists only on node, not the browser.
So you should inject it to browser when the app loads.
Add this line to your app:
window.process = {
...window.process,
};

Vue is not defined in a standalone web component

I am building a standalone Vue component and using it in another Vue project.
Build component:
vue build --target wc --inline-vue --name user-menu user-menu.vue
It's a simple component so far without functionality, just markup.
Then, in the main project in package.json:
"devDependencies": {
"user-menu": "git+https://........user-menu.git",
Then, in the main.js:
import Vue from "vue";
import UserMenu from "user-menu"
....
Vue.use(UserMenu);
const app = new Vue(config).$mount("#root");
window.app = app;
Vue.use(UserMenu);
And it says:
user-menu.js?e2ea:1446 Uncaught ReferenceError: Vue is not defined
on a row
module.exports = Vue;
But the Vue CLI 3 documentation says that:
In web component mode, Vue is externalized. This means the bundle will
not bundle Vue even if your code imports Vue. The bundle will assume
Vue is available on the host page as a global variable.
Any idea how to fix that?
Finally I came to the following solution: the component should not be built at all. Source files are enought to be imported like this:
import UserMenu from "user-menu/user-menu";
Pay attention that the path should point at the imported vue file, not just to the folder. But the extension "vue" must be skipped.
The final application will build it all together.

Loading vuetify in a package that i use in a vuetify project

What is the correct way of loading vuetify into a package that i use in a vuetify project?
When serving projects it all seems to work fine but when i build the project i've got some issues with the css/sass
things i've tried:
With vuetify loader: the css is loaded twice so i can't overwrite sass variables
Without vuetify loader: the package doesn't have the vuetify css, so it looks horrible
Without vuetify loader with vuetify.min.css: the css is loaded twice so i can't overwrite sass variables, and the loaded css is all the css so it's huge
My package is called vuetify-resource, and this is the source code of the index.js (without the vuetify loader) At this point everything works on npm run serve But when i build the package doesn't have "access" to the vuetify css.
import Vue from 'vue';
import Vuetify from 'vuetify';
import VuetifyResourceComponent from './VuetifyResource.vue';
Vue.use(Vuetify);
const VuetifyResource = {
install(Vue, options) {
Vue.component('vuetify-resource', VuetifyResourceComponent);
},
};
export default VuetifyResource;
To solve my issue i had to do a couple of things.
Make peer dependencies of vuetify and vue
add vuetify to the webpack externals, so when someone uses the package, the package uses that projects vuetify
not longer import vue and vuetify in the index.js it's not needed, the project that uses the package imports that
import the specific components that you use in every .vue file
for example:
Vue.config.js
module.exports = {
configureWebpack: {
externals: {'vuetify/lib': 'vuetify/lib'},
},
};
index.js
import VuetifyResourceComponent from './VuetifyResource.vue';
const VuetifyResource = {
install(Vue, options) {
Vue.component('vuetify-resource', VuetifyResourceComponent);
},
};
export default VuetifyResource;
part of the component.vue
import { VDataTable } from 'vuetify/lib';
export default {
name: 'vuetify-resource',
components: {
VDataTable
},
Step 4 in Ricardo's answer is not needed if you use vuetify-loader, it will do the job for you.
And I would modify step 2 to also exclude Vuetify's styles/css from your bundle. If you don't exclude them you can run into styling issues when the Vuetify version differ between your library and your application.
Use a regular expression in vue.config.js like this: configureWebpack: { externals: /^vuetify\// }. That way, only your own styles are included in the library bundle.

How to use vue plugin in nuxt

There's a plugin called vue-chat-scroll and I would like to use it in nuxt. Am a beginner so I cant really understand how but I wonder if its possible to use this vue plugin in nuxt as plugin. how would one do that?
Create a js file in plugin folder and name it vue-chat-scroll.js (the name is optional. It depends on you). then register your plugin inside this js file as follows:
import Vue from 'vue';
import VueChatScroll from 'vue-chat-scroll';
Vue.component('VueChatScroll', VueChatScroll);
Then import it in nuxt.config.js inside plugins as follow:
plugins: [
{
src: '~/plugins/vue-chat-scroll.js',
ssr: true
}
]
Create a file inside plugins folder, for example, vue-chat-scroll.js with the following content:
import Vue from 'vue'
import VueChatScroll from 'vue-chat-scroll'
Vue.use(VueChatScroll)
In nuxt.config.js import the plugin as
plugins: [...your existing plugins,'~/plugins/vue-chat-scroll.js']
and then follow the plugin tutorial for its API

Import a node module in Vue.js CLI instance

I've created a new vue app using vue init webpack sample-app .
I'm trying to import this module (https://docs.botui.org/install.html) into my app.vue and make it show on.
What's the correct way to import this module into a Vue.JS app?
Open the terminal in your project root folder, then install the package:
npm install botui --save
Then open src/main.js in your text editor and add this:
import Vue from 'vue'
import BotUI from 'botui'
const botui = BotUI('my-botui-app', {
vue: Vue // pass the dependency.
})
This will create a botui instance. But that instance won't have any messages in it. You can check that it's working by adding a message:
botui.message.bot('Hello, how can I help?')