Vue routing tutorial getting started with vue router

Vue
Routing
Tutorial:
Getting
started
with Vue
Router
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VueJS is a robust and most progressive
Javascript framework used for developing
dynamic and excellent front-end
applications. VueJS is also famous for
building SPAs (Single Page Applications).
Rather than making requests to the back-
end and rendering the respective pages at
the front-end, VueJS provides a Vue
Router library to manage the mechanism
known as ‘routing.’ This provides a better
user experience and improves application
responsiveness.
In this tutorial, we will learn how to
implement Vue Router with our simple
Single Page Application. We will develop a
small demo application that will have a
few pages linked through Vue Router. I’m
assuming that you’re already familiar with
VueJS. So, let’s begin our journey!

CONTENTS
1. Goal of Vue Routing Tutorial
2. Vue Router Example: Steps to implement
Vue Routing
3. Conclusion

https://youtu.be/4xAIuvAkJWY
We will build a demo blog application that
will consist of posts (title/description) and
comments (related to the post). We will
retrieve data using Axios. And for that, we
will use these APIs –

To fetch posts –
To fetch post details of post 1 –
To fetch comments of post 1 –
https://jsonplaceholder.typicode.com/posts
https://jsonplaceholder.typicode.com/posts
/1.
https://jsonplaceholder.typicode.com/com
ments?postId=1.
Each row consists of a blog post. On clicking
the blog, we will be able to view comments
and post details.

Vue Router
Example:
Steps to
implement
Vue Routing

Project Setup
Create components
Linking components using Vue Router
Dynamic Routing
Implementing Page Not Found
We have divided the steps into four
sections-
Follow this step-by-step guide to
implement Vue Routing.
Install vue-cli
1) Project Setup
npm install --global vue-cli

Create a new project
Install dependencies
vue create vue-router-example
When the questions are prompted on your
terminal, ensure your answer is “yes” for
vue-router installation.
cd vue-router-example
npm install axios bootstrap-vue
Run the server
npm run serve
After running the above command, you’ll
see the default screen on
http://localhost:8080/.

2) Create Components
Before moving forward, have a look at the
folder structure of vue-router-example

(Folder structure can vary from person to
person)
Note down the file names and copy-paste
the code, respectively.
main.js
Import IconsPlugin,BCard,BContainer,BCol,
and BRow from ‘bootstrap-vue’
import Vue from 'vue'
import App from './App.vue'
import router from './router'
import {
IconsPlugin,
BCard,
BContainer,
BCol,
BRow,
} from "bootstrap-vue";

import 'bootstrap/dist/css/bootstrap.css'
import 'bootstrap-vue/dist/bootstrap-
vue.css'
Vue.use(IconsPlugin)
Vue.component("b-card", BCard);
Vue.component("b-container",
BContainer);
Vue.component("b-col", BCol);
Vue.component("b-row", BRow);
Vue.config.productionTip = false
new Vue({
router,
render: h => h(App)
}).$mount('#app')

App.vue
The default UI will consist of Home Link
and the view based on the routes hit.
On clicking Home the UI will be redirected
to ‘/’ and display the respective component
from file router/index.js.
< router-view /> will let us know which
route will display which component.
<template>
<div id="app">
<div id="nav">
<router-link to="/">Home</router-link>
</div>
<router-view/>
</div>
</template>

router/index.js
Import vue-router package to set the
navigating to the components. There are in-
total five routes, but primarily we will cover
the first two routes for setting up the basic
routing.
import Vue from 'vue'
import VueRouter from 'vue-router'
import Posts from
"../components/pages/Posts.vue";
Vue.use(VueRouter)
const routes = [
{
path: '/', redirect: '/posts'
},
{
path: '/posts',
component: Posts,
},
]

const router = new VueRouter({
mode: 'history',
base: process.env.BASE_URL,
routes
})
export default router
/’ defines the default view, here Home page.
We will redirect ‘/’ to ‘/posts’ which will
display component Posts.
Now, let’s see what the Posts component
has?

pages/Posts.vue
<template>
<div>
<base-post :posts="allPosts"></base-post>
</div>
</template>
<script>
import { Service } from "../../service.js";
import BasePost from '../ui/BasePost.vue';
export default {
components: { BasePost },
name: 'Posts',
created() {
this.getAllPosts();
},

data() {
return {
allPosts: [],
}
},
methods: {
getAllPosts() {
Service.get(`posts`)
.then(res => {
this.allPosts = res.data;
})
.catch(error => console.log(error));
},
}
}
</script>
We have imported

BasePost from ui/BasePost for
displaying the user interface of all the
posts
Service from service.js to access the
remote data using Service.get(‘posts’).
On resolving the promise, we will store
the response in the array named
allPosts, and if the promise is rejected,
we will simply console the error.
Now let’s see what BasePost.vue component
and service.js has?
ui/BasePost.vue

<template>
<div>
<b-card
v-for="post in posts"
:key="post.id"
:style="{ backgroundColor:
background(post.id) }"
class="post"
>
<b-row class="row1">
<p class="title">
Title - {{ post.title }}
</p>
<p class="body"
:title="post.body"
>
Description - {{ post.body.slice(0, 70) +
"..." }}
</p>
</b-row>
</b-card>

</div>
</template>
<script>
export default {
name: "basePost",
props: ["posts"],
methods: {
background: function(postId) {
return postId % 2 == 0 ? "#B5E0D9" :
"#FFE6E6";
},
},
};
</script>
We have used , < b-row / >, and < b-col / >
from the bootstrap-vue.
All the posts will be displayed using posts
prop with Post Title and Post Description.

service.js
We will import ‘axios’ to fetch the data from
the base URL –
https://jsonplaceholder.typicode.com/
We will create an Axios instance using the
‘create()’ method where the resource is
accessed via baseURL prop.
Now, let’s see the implementation of API
using Axios in the service.js file.
import axios from 'axios';
export const Service = axios.create({
baseURL:
`https://jsonplaceholder.typicode.com/`
})
After implementing the Basic Routing using
Vue Router, the UI so far will look like this
(excluding style) –

Now, let’s see the dynamic routing.
3) Dynamic Routing
When we click on the post, we want to post
details to be displayed. And fetch respective
data we will use its post.id.
We will create one component named
PostDetails, and a few make changes in
router/index.js and BasePost.vue
router/index.js

Now, whenever route ‘/post/:id’ will hit, the
PostDetails component will render. As said
before, with the click of any post title, we
will send its id to the route. To implement
this, open the file BasePost.vue and write
this code.
BasePost.vue
{
path: '/posts/:id',
component: PostDetails
},
<p class="title">
<router-link
:to="'/posts/' + post.id"
>
Title - {{ post.title }}
</router-link>
</p>

Moving towards the PostDetails
component.
PostDetails.vue
<template>
<div>
<b-container
:style="{ backgroundColor:
background(this.postId) }"
v-if="postDetails"
>
<b-row>
<b-col cols="12">
<h1>{{ postDetails.title }}</h1>
</b-col>
</b-row>
<div class="postBody">
<b-row align-h="center">
<b-col cols="10">
<p>{{ postDetails.body }}</p>
</b-col>

</b-row>
</div>
<b-row>
<b-col cols="12" class="commentTitle">
<h2 style="font-weight:
500">Comments</h2>
</b-col>
<base-comment
:comments="allComments"></base-
comment>
</b-row>
</b-container>
<h3 v-else>Loading....</h3>
</div>
</template>
<script>
import { Service } from "../../service.js";
import baseComment from
"../ui/BaseComment.vue";

export default {
name: "PostDetails",
components: {
baseComment,
},
mounted() {
this.getPostDetails();
this.getComments();
},
data() {
return {
postId: this.$route.params.id,
postDetails: null,
allComments: [],
};
},
methods: {
getPostDetails() {
Service.get(`posts/${this.postId}`)
.then((res) => {
this.postDetails = {
...res.data,

};
this.getUserDetails(this.postDetails.userI
d);
})
.catch((error) => console.log(error));
},
getComments() {
Service.get(`comments?
postId=${this.postId}`).then((res) => {
this.allComments = res.data;
});
},
background: function(postId) {
return postId % 2 == 0 ? "#B5E0D9" :
"#FFE6E6";
},
},
};
</script>

Post details will consist of the post title,
post description, and post comments. To
display that, we will use components from
bootstrap-vue.
Two API calls are made using the imported
Service component –
– To fetch post details
getPostDetails() {
Service.get(`posts/${this.postId}`)
.then((res) => {
this.postDetails = {
...res.data,
};
})
},

– To fetch post comments
getComments() {
Service.get(`comments?
postId=${this.postId}`)
.then((res) => {
this.allComments = res.data;
})
},
As we will be having a lot of comments
related to a single post, we will create a
whole new component for displaying
comments named BaseComment.vue
ui/BaseComment.vue
The component will show the comments
related to the respective post.

<template>
<div>
<b-col cols="12" v-if="comments">
<b-col cols="10" v-for="comment in
comments"
:key="comment.id" class="comment">
{{ comment.body }}
</b-col>
</b-col>
<h5 v-else>Loading....</h5>
</div>
</template>
<script>
export default {
name: "baseComment",
props: ["comments"],
};
</script>

After implementing Dynamic Routing, the
UI will be something like this (excluding
style) –
Heading towards the last section of Vue
Router Tutorial – implementation of Page
not found.
4) Implementing Page Not Found
Create a component named –
PageNotFound.vue inside the pages folder
and make the required changes in
router/index.js.

{
path: '*', component: PageNotFound
}
PageNotFound.vue
<template>
<h1>You have entered a wrong url.
Try going to <router-link to="/">Home
Page</router-link>.</h1>
</template>
<script>
export default {
name: 'PageNotFound'
}
</script>
router/index.js
PageNotFound component will render
whenever an invalid route hits.
You can find the entire source code here:
vue-router-example

So, this was all about implementing a basic
and dynamic Vue Routing tutorial with the
help of Vue Router. I hope your purpose
was served by landing on this blog post. You
can learn more about VueJS by reading
VueJS tutorials.
If you are looking for a helping hand for
your ongoing or new Vue.js project, get in
touch with us to hire VueJS developer of
your choice with the desired skill set. We
have 40+ dedicated Vue.js developers
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Vue routing tutorial getting started with vue router

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