How to Build Vue Apps with NuxtJS

In this Vue tutorial we will learn about How to Build Vue Apps with NuxtJS. Nuxt calls itself the intuitive Vue framework. It aims to make a developer-friendly experience while not sacrificing performance or degrading the integrity of your architecture. It has been exciting to see the community and tooling around VueJS grow and evolve — there’s no better time to get started in this ecosystem than now.

In this tutorial, you will build a small web application that retrieves some posts from an API and displays them for authenticated users. For authentication, you will integrate Okta into your Nuxt application. Okta’s simple authentication system and the power of Nuxt means you can configure and set up your authentication in just a few moments.

What you’ll need

• Your favorite IDE (I will be using Visual Studio Code)
• Node.js
• An Okta Developer Account
• The Okta CLI tool

Set up your Okta application

Install the Okta CLI and run okta login. Then, run okta apps create. Select the default app name, or change it as you see fit. Choose Single-Page App and press Enter.

Use http://localhost:3000/login for the Redirect URI and set the Logout Redirect URI to http://localhost:3000/.

What does the Okta CLI do?

The Okta CLI will create an OIDC Single-Page App in your Okta Org. It will add the redirect URIs you specified and grant access to the Everyone group. It will also add a trusted origin for http://localhost:3000/. You will see output like the following when it’s finished:

Okta application configuration:
Issuer:    https://dev-133337.okta.com/oauth2/default
Client ID: 0oab8eb55Kb9jdMIr5d6

NOTE: You can also use the Okta Admin Console to create your app. See Create a Vue App for more information.

Build your web application with Nuxt

If you wish to follow along using the completed project you can check out the GitHub repository here.

Nuxt provides a scaffolding tool called create-nuxt-app to make scaffolding your application easy. You can run the following command to create the application:

npx create-nuxt-app okta-vue-nuxt-example

Usually, task runners have several options. There are some important options you should take a look at while using this task runner.

• Programming language: JavaScript
• Package manager: Npm
• UI framework: Bootstrap Vue
• Nuxt modules: Axios - Promise based HTTP client

We will use Axios to fetch data in our application. Next, you can select the linting tool of your choice and a testing framework.

• Rendering mode: Universal (SSR / SSG)
• Deployment target: Server (Node.js hosting)

You can use the following commands to enter the project directory and run the application.

cd okta-vue-nuxt-example
npm run dev

If you open http://localhost:3000/ in your browser, you will see the default Nuxt page.

The Nuxt project layout is pretty straightforward. First you have a .nuxt folder where your compiled server code will end up. Next there is a components folder. You won’t use the folder in this tutorial, but breaking pages into components is common practice in larger projects. These components are then reusable in a number of pages. Next you will find a pages folder where your pages will go. Your routes will be inferred by Nuxt from these views. The static folder is where you can house css, images, or other static content to display. The store directory contains your Vuex store files.

You will also add a layouts folder later. As you might have guessed, this folder will contain layouts. There are several other directories that are configured out of the box for Nuxt, including middleware, modules, plugins, and dist. These are out of scope for this article but it is important to know they exist.

Finally, you will need two packages from npm. The first is @nuxtjs/dotenv which is a nuxt-friendly implementation of dotenv. You will use this to store sensitive information that you don’t want to end up in your source control.

Finally you will need @nuxt/auth-next to control your authentication.

npm i @nuxtjs/dotenv@1.4.1
npm i @nuxtjs/auth-next@5.0.0-1637333559.35dbd53

With your dependencies installed it’s time to start building your application. First, add a new file to your root directory and name it .env, then add the following code to it.

OKTA_DOMAIN=https://{yourOktaDomain}
OKTA_CLIENT_ID={yourClientId}

Be sure to replace the placeholder variables with your actual Okta information.

Now open your nuxt.config.js file located in the root directory and replace its contents with the following code.

export default {
  // Global page headers: https://go.nuxtjs.dev/config-head
  head: {
    title: "todolist-article",
    htmlAttrs: {
      lang: "en",
    },
    meta: [
      { charset: "utf-8" },
      { name: "viewport", content: "width=device-width, initial-scale=1" },
      { hid: "description", name: "description", content: "" },
      { name: "format-detection", content: "telephone=no" },
    ],
    link: [{ rel: "icon", type: "image/x-icon", href: "/favicon.ico" }],
  },

  // Global CSS: https://go.nuxtjs.dev/config-css
  css: [],

  // Plugins to run before rendering page: https://go.nuxtjs.dev/config-plugins
  plugins: [],

  // Auto import components: https://go.nuxtjs.dev/config-components
  components: true,

  // Modules for dev and build (recommended): https://go.nuxtjs.dev/config-modules
  buildModules: [],

  // Modules: https://go.nuxtjs.dev/config-modules
  modules: [
    // https://go.nuxtjs.dev/bootstrap
    "bootstrap-vue/nuxt",
    // Doc: https://axios.nuxtjs.org/usage
    "@nuxtjs/axios",
    "@nuxtjs/dotenv",
    "@nuxtjs/auth-next",
  ],

  /*
   ** Axios module configuration
   ** See https://axios.nuxtjs.org/options
   */
  axios: {},

  auth: {
    strategies: {
      okta: {
        scheme: "openIDConnect",
        endpoints: {
          configuration:  `${process.env.OKTA_DOMAIN}/oauth2/default/.well-known/oauth-authorization-server`,
          logout: undefined,
        },
        clientId: process.env.OKTA_CLIENT_ID,
        grantType: "authorization_code",
        responseType: "code",
      },
    },
  },
  // Build Configuration: https://go.nuxtjs.dev/config-build
  build: {},
};

The first thing this file does is make use of dotenv. It registers the modules you added earlier through the task runner and via npm. Finally, it sets up the options for your OAuth configuration. Here is where you use the environment variables that you set up in your .env file.

You should note the line of code that reads logout: undefined. It is critical for logging the user out correctly, because Okta requires the idToken to be passed as a query parameter. However, nuxt-auth won’t include that parameter under the hood. The solution is to override the logout URL obtained from the configuration endpoint with undefined and manually log the user out in your page file. You will implement this shortly.

To use the OAuth configuration properly, Nuxt requires you to add a file to the store folder called index.vue. You can leave this file empty, but it must exist for Nuxt to use it. If you do not have a store folder, create one now and add a blank index.vue file to it.

Add your Nuxt pages

Now, you can start adding pages to your application. Nuxt builds your routes by looking in the pages folder. You can read more about Nuxt’s custom routing in their documentation.

Before working on your pages you should set up your layout. Add a new folder called layouts to the project directory and add a file called default.vue.

This file, and all of the views in this project, will use the Vue template syntax. Vue templating is very similar to most other template syntaxes. It relies heavily on the v-bind HTML attribute to handle events or bind attribute values. You can handle events with the v-on syntax, which can be short handed to @, such as @click="doSomething". The b-* components are from the Bootstrap Vue library that should have been installed via the npx task runner.

The layout page will display the headers and footers and incorporate some branching logic to determine if a user should see a login or logout button. It also contains some common CSS and JavaScript that will be needed on each page that uses the layout. The <nuxt /> element on this page will act as a placeholder for the code on your page. Nuxt will render your page code in this section.

<template>
  <div>
    <b-container>
      <b-navbar toggleable="lg" type="dark" variant="info">
        <b-navbar-brand href="#">Posts</b-navbar-brand>
        <b-navbar-nav>
          <b-nav-item href="/dashboard"> Dashboard </b-nav-item>
        </b-navbar-nav>

        <b-navbar-nav v-if="loggedIn" class="ml-auto">
          <b-button @click="logout" size="sm" class="my-2 my-sm-0" type="submit"
            >Logout
          </b-button>
        </b-navbar-nav>

        <b-navbar-nav v-else class="ml-auto">
          <b-button @click="login" size="sm" class="my-2 my-sm-0" type="submit"
            >Login
          </b-button>
        </b-navbar-nav>

      </b-navbar>

      <nuxt />

      <footer id="sticky-footer" class="py-4 bg-dark text-white-50">
        <div class="fluid-container footer">
          <small>Copyright &copy;{{ year }} </small>
          <br />

          A small app built with
          <a href="https://nuxtjs.org/" target="blank">Nuxt</a>, Protected by
          <a href="https://www.okta.com/" target="blank">Okta</a>, Written by
          <a href="https://profile.fishbowlllc.com" target="blank">Nik Fisher</a
          >.
        </div>
      </footer>
    </b-container>
  </div>
</template>

<script>
export default {
  data() {
    return {
      loggedIn: this.$auth.$state.loggedIn,
      year: new Date().getFullYear(),
    }
  },
  methods: {
    logout() {
      this.$auth.logout();
    },
    login() {
      this.$auth.loginWith('okta').then(result => window.location = "/Dashboard");
    }
  },
}
</script>

<style scoped>
.fluid-container.footer > *:last-child {
  margin-bottom: 0px;
  color: #fff;
}
</style>

You will also need a basic landing page that isn’t under authentication. Your landing page will give some information about the application. It will also contain a redirect for authenticated users to route them to the Dashboard page.

Open the index.vue page in the pages directory and replace the code with the following.

<template>
  <div id="page-content">
    <b-jumbotron
      style="margin-top: 5vh"
      header="Lets Get Some Posts"
      lead="A Simple App with Nuxt and Okta"
    >
      <p>For more information visit their websites</p>
      <b-button variant="primary" href="https://nuxtjs.org/" target="blank"
        >Nuxt</b-button
      >
      <b-button
        variant="outline-primary"
        href="https://www.okta.com/"
        target="blank"
        >Okta</b-button
      >
    </b-jumbotron>
  </div>
</template>

<script>
export default {
  beforeMount() {
    if (this.$auth.$state.loggedIn) window.location = '/Dashboard'
  },
}
</script>

Next, you can add the Dashboard page. This page makes use of the data() webhook to get some data from a server using Axios, which it then displays in a table. The Dashboard page also makes use of the auth middleware to enforce authentication on this page. When a user attempts to hit this page, they will be rerouted to your login page if they are not authenticated.

Add a new file to the pages folder and name it dashboard.vue. Copy the following code into your dashboard.vue file.

<template>
  <div>
    <b-table :items="posts" :fields="fields"> </b-table>
  </div>
</template>

<script>
import Vue from 'vue'
export default Vue.extend({
  middleware: ['auth'],
  data() {
    return {
      fields: ['userId', 'title', 'body'],
      posts: [],
    }
  },
  async beforeMount() {
    this.$axios
      .$get('https://jsonplaceholder.typicode.com/posts')
      .then((res) => {
        this.posts = res
      })
      .catch((err) => {
        console.log(err)
      })
  },
})
</script>

Finally you will need to add the login page where Nuxt will route unauthenticated users. Add a new page to the pages folder named login.vue. Add the following code to it.

<template>
  <div id="page-content" class="p-4">
    <a class="btn btn-primary" @click="$auth.loginWith('okta')">Login with Okta </a>
  </div>
</template>


<script>
export default {
  middleware: ['auth'],
  data() {
    return {}
  },
  beforeMount() {
    if (this.$auth.$state.loggedIn) window.location = '/Dashboard'
  }
}
</script>

Testing your Nuxt application

Now that your application is complete you can run npm run dev from your terminal and the application will build. You should see the home page first.

Click on Dashboard or Login and this should route you to the Okta login form. You can enter your Okta credentials here and you will be routed to the Dashboard page where you can view the posts.

Do more with Nuxt and Vue

With a little bit of code, you can combine Nuxt and Okta to make secure Vue SPAs or universal applications. You can find the source code for the example created in this tutorial on GitHub.

In this post, you learned how to use the @nuxt/auth-next package to secure your Nuxt application using Okta. You also learned how to create the application in Okta and configure the Vue app to use it. Finally, you learned how to use the @nuxtjs/axios package to pull data from a sample API.

Original article source at: https://developer.okta.com

#nuxtjs #vue 

What is GEEK

Buddha Community

How long does it take to develop/build an app?

With more of us using smartphones, the popularity of mobile applications has exploded. In the digital era, the number of people looking for products and services online is growing rapidly. Smartphone owners look for mobile applications that give them quick access to companies’ products and services. As a result, mobile apps provide customers with a lot of benefits in just one device.

Likewise, companies use mobile apps to increase customer loyalty and improve their services. Mobile Developers are in high demand as companies use apps not only to create brand awareness but also to gather information. For that reason, mobile apps are used as tools to collect valuable data from customers to help companies improve their offer.

There are many types of mobile applications, each with its own advantages. For example, native apps perform better, while web apps don’t need to be customized for the platform or operating system (OS). Likewise, hybrid apps provide users with comfortable user experience. However, you may be wondering how long it takes to develop an app.

To give you an idea of how long the app development process takes, here’s a short guide.

App Idea & Research

_Average time spent: two to five weeks _

This is the initial stage and a crucial step in setting the project in the right direction. In this stage, you brainstorm ideas and select the best one. Apart from that, you’ll need to do some research to see if your idea is viable. Remember that coming up with an idea is easy; the hard part is to make it a reality.

All your ideas may seem viable, but you still have to run some tests to keep it as real as possible. For that reason, when Web Developers are building a web app, they analyze the available ideas to see which one is the best match for the targeted audience.

Targeting the right audience is crucial when you are developing an app. It saves time when shaping the app in the right direction as you have a clear set of objectives. Likewise, analyzing how the app affects the market is essential. During the research process, App Developers must gather information about potential competitors and threats. This helps the app owners develop strategies to tackle difficulties that come up after the launch.

The research process can take several weeks, but it determines how successful your app can be. For that reason, you must take your time to know all the weaknesses and strengths of the competitors, possible app strategies, and targeted audience.

The outcomes of this stage are app prototypes and the minimum feasible product.

#android app #frontend #ios app #minimum viable product (mvp) #mobile app development #web development #android app development #app development #app development for ios and android #app development process #ios and android app development #ios app development #stages in app development

How to start an electric scooter facility/fleet in a university campus/IT park

Are you leading an organization that has a large campus, e.g., a large university? You are probably thinking of introducing an electric scooter/bicycle fleet on the campus, and why wouldn’t you?

Introducing micro-mobility in your campus with the help of such a fleet would help the people on the campus significantly. People would save money since they don’t need to use a car for a short distance. Your campus will see a drastic reduction in congestion, moreover, its carbon footprint will reduce.

Micro-mobility is relatively new though and you would need help. You would need to select an appropriate fleet of vehicles. The people on your campus would need to find electric scooters or electric bikes for commuting, and you need to provide a solution for this.

To be more specific, you need a short-term electric bike rental app. With such an app, you will be able to easily offer micro-mobility to the people on the campus. We at Devathon have built Autorent exactly for this.

What does Autorent do and how can it help you? How does it enable you to introduce micro-mobility on your campus? We explain these in this article, however, we will touch upon a few basics first.

Micro-mobility: What it is

You are probably thinking about micro-mobility relatively recently, aren’t you? A few relevant insights about it could help you to better appreciate its importance.

Micro-mobility is a new trend in transportation, and it uses vehicles that are considerably smaller than cars. Electric scooters (e-scooters) and electric bikes (e-bikes) are the most popular forms of micro-mobility, however, there are also e-unicycles and e-skateboards.

You might have already seen e-scooters, which are kick scooters that come with a motor. Thanks to its motor, an e-scooter can achieve a speed of up to 20 km/h. On the other hand, e-bikes are popular in China and Japan, and they come with a motor, and you can reach a speed of 40 km/h.

You obviously can’t use these vehicles for very long commutes, however, what if you need to travel a short distance? Even if you have a reasonable public transport facility in the city, it might not cover the route you need to take. Take the example of a large university campus. Such a campus is often at a considerable distance from the central business district of the city where it’s located. While public transport facilities may serve the central business district, they wouldn’t serve this large campus. Currently, many people drive their cars even for short distances.

As you know, that brings its own set of challenges. Vehicular traffic adds significantly to pollution, moreover, finding a parking spot can be hard in crowded urban districts.

Well, you can reduce your carbon footprint if you use an electric car. However, electric cars are still new, and many countries are still building the necessary infrastructure for them. Your large campus might not have the necessary infrastructure for them either. Presently, electric cars don’t represent a viable option in most geographies.

As a result, you need to buy and maintain a car even if your commute is short. In addition to dealing with parking problems, you need to spend significantly on your car.

All of these factors have combined to make people sit up and think seriously about cars. Many people are now seriously considering whether a car is really the best option even if they have to commute only a short distance.

This is where micro-mobility enters the picture. When you commute a short distance regularly, e-scooters or e-bikes are viable options. You limit your carbon footprints and you cut costs!

Businesses have seen this shift in thinking, and e-scooter companies like Lime and Bird have entered this field in a big way. They let you rent e-scooters by the minute. On the other hand, start-ups like Jump and Lyft have entered the e-bike market.

Think of your campus now! The people there might need to travel short distances within the campus, and e-scooters can really help them.

How micro-mobility can benefit you

What advantages can you get from micro-mobility? Let’s take a deeper look into this question.

Micro-mobility can offer several advantages to the people on your campus, e.g.:

• Affordability: Shared e-scooters are cheaper than other mass transportation options. Remember that the people on your campus will use them on a shared basis, and they will pay for their short commutes only. Well, depending on your operating model, you might even let them use shared e-scooters or e-bikes for free!
• Convenience: Users don’t need to worry about finding parking spots for shared e-scooters since these are small. They can easily travel from point A to point B on your campus with the help of these e-scooters.
• Environmentally sustainable: Shared e-scooters reduce the carbon footprint, moreover, they decongest the roads. Statistics from the pilot programs in cities like Portland and Denver showimpressive gains around this key aspect.
• Safety: This one’s obvious, isn’t it? When people on your campus use small e-scooters or e-bikes instead of cars, the problem of overspeeding will disappear. you will see fewer accidents.

#android app #autorent #ios app #mobile app development #app like bird #app like bounce #app like lime #autorent #bird scooter business model #bird scooter rental #bird scooter rental cost #bird scooter rental price #clone app like bird #clone app like bounce #clone app like lime #electric rental scooters #electric scooter company #electric scooter rental business #how do you start a moped #how to start a moped #how to start a scooter rental business #how to start an electric company #how to start electric scooterrental business #lime scooter business model #scooter franchise #scooter rental business #scooter rental business for sale #scooter rental business insurance #scooters franchise cost #white label app like bird #white label app like bounce #white label app like lime

Best Electric Bikes and Scooters for Rental Business or Campus Facility

The electric scooter revolution has caught on super-fast taking many cities across the globe by storm. eScooters, a renovated version of old-school scooters now turned into electric vehicles are an environmentally friendly solution to current on-demand commute problems. They work on engines, like cars, enabling short traveling distances without hassle. The result is that these groundbreaking electric machines can now provide faster transport for less — cheaper than Uber and faster than Metro.

Since they are durable, fast, easy to operate and maintain, and are more convenient to park compared to four-wheelers, the eScooters trend has and continues to spike interest as a promising growth area. Several companies and universities are increasingly setting up shop to provide eScooter services realizing a would-be profitable business model and a ready customer base that is university students or residents in need of faster and cheap travel going about their business in school, town, and other surrounding areas.

Electric Scooters Trends and Statistics

In many countries including the U.S., Canada, Mexico, U.K., Germany, France, China, Japan, India, Brazil and Mexico and more, a growing number of eScooter users both locals and tourists can now be seen effortlessly passing lines of drivers stuck in the endless and unmoving traffic.

A recent report by McKinsey revealed that the E-Scooter industry will be worth― $200 billion to $300 billion in the United States, $100 billion to $150 billion in Europe, and $30 billion to $50 billion in China in 2030. The e-Scooter revenue model will also spike and is projected to rise by more than 20% amounting to approximately $5 billion.

And, with a necessity to move people away from high carbon prints, traffic and congestion issues brought about by car-centric transport systems in cities, more and more city planners are developing more bike/scooter lanes and adopting zero-emission plans. This is the force behind the booming electric scooter market and the numbers will only go higher and higher.

Companies that have taken advantage of the growing eScooter trend develop an appthat allows them to provide efficient eScooter services. Such an app enables them to be able to locate bike pick-up and drop points through fully integrated google maps.

List of Best Electric Bikes for Rental Business or Campus Facility 2020:

It’s clear that e scooters will increasingly become more common and the e-scooter business model will continue to grab the attention of manufacturers, investors, entrepreneurs. All this should go ahead with a quest to know what are some of the best electric bikes in the market especially for anyone who would want to get started in the electric bikes/scooters rental business.

We have done a comprehensive list of the best electric bikes! Each bike has been reviewed in depth and includes a full list of specs and a photo.

Billy eBike

 https://www.kickstarter.com/projects/enkicycles/billy-were-redefining-joyrides

To start us off is the Billy eBike, a powerful go-anywhere urban electric bike that’s specially designed to offer an exciting ride like no other whether you want to ride to the grocery store, cafe, work or school. The Billy eBike comes in 4 color options – Billy Blue, Polished aluminium, Artic white, and Stealth black.

Price: $2490

Available countries

Available in the USA, Europe, Asia, South Africa and Australia.This item ships from the USA. Buyers are therefore responsible for any taxes and/or customs duties incurred once it arrives in your country.

Features

• Control – Ride with confidence with our ultra-wide BMX bars and a hyper-responsive twist throttle.
• Stealth- Ride like a ninja with our Gates carbon drive that’s as smooth as butter and maintenance-free.
• Drive – Ride further with our high torque fat bike motor, giving a better climbing performance.
• Accelerate – Ride quicker with our 20-inch lightweight cutout rims for improved acceleration.
• Customize – Ride your own way with 5 levels of power control. Each level determines power and speed.
• Flickable – Ride harder with our BMX /MotoX inspired geometry and lightweight aluminum package

Specifications

• Maximum speed: 20 mph (32 km/h)
• Range per charge: 41 miles (66 km)
• Maximum Power: 500W
• Motor type: Fat Bike Motor: Bafang RM G060.500.DC
• Load capacity: 300lbs (136kg)
• Battery type: 13.6Ah Samsung lithium-ion,
• Battery capacity: On/off-bike charging available
• Weight: w/o batt. 48.5lbs (22kg), w/ batt. 54lbs (24.5kg)
• Front Suspension: Fully adjustable air shock, preload/compression damping /lockout
• Rear Suspension: spring, preload adjustment
• Built-in GPS

Why Should You Buy This?

• Riding fun and excitement
• Better climbing ability and faster acceleration.
• Ride with confidence
• Billy folds for convenient storage and transportation.
• Shorty levers connect to disc brakes ensuring you stop on a dime
• belt drives are maintenance-free and clean (no oil or lubrication needed)

**Who Should Ride Billy? **

Both new and experienced riders

**Where to Buy? **Local distributors or ships from the USA.

Genze 200 series e-Bike

 https://www.genze.com/fleet/

Featuring a sleek and lightweight aluminum frame design, the 200-Series ebike takes your riding experience to greater heights. Available in both black and white this ebike comes with a connected app, which allows you to plan activities, map distances and routes while also allowing connections with fellow riders.

Price: $2099.00

Available countries

The Genze 200 series e-Bike is available at GenZe retail locations across the U.S or online via GenZe.com website. Customers from outside the US can ship the product while incurring the relevant charges.

Features

• 2 Frame Options
• 2 Sizes
• Integrated/Removable Battery
• Throttle and Pedal Assist Ride Modes
• Integrated LCD Display
• Connected App
• 24 month warranty
• GPS navigation
• Bluetooth connectivity

Specifications

• Maximum speed: 20 mph with throttle
• Range per charge: 15-18 miles w/ throttle and 30-50 miles w/ pedal assist
• Charging time: 3.5 hours
• Motor type: Brushless Rear Hub Motor
• Gears: Microshift Thumb Shifter
• Battery type: Removable Samsung 36V, 9.6AH Li-Ion battery pack
• Battery capacity: 36V and 350 Wh
• Weight: 46 pounds
• Derailleur: 8-speed Shimano
• Brakes: Dual classic
• Wheels: 26 x 20 inches
• Frame: 16, and 18 inches
• Operating Mode: Analog mode 5 levels of Pedal Assist Thrott­le Mode

Norco from eBikestore

 https://ebikestore.com/shop/norco-vlt-s2/

The Norco VLT S2 is a front suspension e-Bike with solid components alongside the reliable Bosch Performance Line Power systems that offer precise pedal assistance during any riding situation.

Price: $2,699.00

Available countries

This item is available via the various Norco bikes international distributors.

Features

• VLT aluminum frame- for stiffness and wheel security.
• Bosch e-bike system – for their reliability and performance.
• E-bike components – for added durability.
• Hydraulic disc brakes – offer riders more stopping power for safety and control at higher speeds.
• Practical design features – to add convenience and versatility.

Specifications

• Maximum speed: KMC X9 9spd
• Motor type: Bosch Active Line
• Gears: Shimano Altus RD-M2000, SGS, 9 Speed
• Battery type: Power Pack 400
• Battery capacity: 396Wh
• Suspension: SR Suntour suspension fork
• Frame: Norco VLT, Aluminum, 12x142mm TA Dropouts

Bodo EV

http://www.bodoevs.com/bodoev/products_show.asp?product_id=13

Manufactured by Bodo Vehicle Group Limited, the Bodo EV is specially designed for strong power and extraordinary long service to facilitate super amazing rides. The Bodo Vehicle Company is a striking top in electric vehicles brand field in China and across the globe. Their Bodo EV will no doubt provide your riders with high-level riding satisfaction owing to its high-quality design, strength, breaking stability and speed.

Price: $799

Available countries

This item ships from China with buyers bearing the shipping costs and other variables prior to delivery.

Features

• Reliable
• Environment friendly
• Comfortable riding
• Fashionable
• Economical
• Durable – long service life
• Braking stability
• LED lighting technology

Specifications

• Maximum speed: 45km/h
• Range per charge: 50km per person
• Charging time: 8 hours
• Maximum Power: 3000W
• Motor type: Brushless DC Motor
• Load capacity: 100kg
• Battery type: Lead-acid battery
• Battery capacity: 60V 20AH
• Weight: w/o battery 47kg

#android app #autorent #entrepreneurship #ios app #minimum viable product (mvp) #mobile app development #news #app like bird #app like bounce #app like lime #autorent #best electric bikes 2020 #best electric bikes for rental business #best electric kick scooters 2020 #best electric kickscooters for rental business #best electric scooters 2020 #best electric scooters for rental business #bird scooter business model #bird scooter rental #bird scooter rental cost #bird scooter rental price #clone app like bird #clone app like bounce #clone app like lime #electric rental scooters #electric scooter company #electric scooter rental business #how do you start a moped #how to start a moped #how to start a scooter rental business #how to start an electric company #how to start electric scooterrental business #lime scooter business model #scooter franchise #scooter rental business #scooter rental business for sale #scooter rental business insurance #scooters franchise cost #white label app like bird #white label app like bounce #white label app like lime

8 Popular Websites That Use The Vue.JS Framework

In this article, we are going to list out the most popular websites using Vue JS as their frontend framework.

Vue JS is one of those elite progressive JavaScript frameworks that has huge demand in the web development industry. Many popular websites are developed using Vue in their frontend development because of its imperative features.

This framework was created by Evan You and still it is maintained by his private team members. Vue is of course an open-source framework which is based on MVVM concept (Model-view view-Model) and used extensively in building sublime user-interfaces and also considered a prime choice for developing single-page heavy applications.

Released in February 2014, Vue JS has gained 64,828 stars on Github, making it very popular in recent times.

Evan used Angular JS on many operations while working for Google and integrated many features in Vue to cover the flaws of Angular.

“I figured, what if I could just extract the part that I really liked about Angular and build something really lightweight." - Evan You

#vuejs #vue #vue-with-laravel #vue-top-story #vue-3 #build-vue-frontend #vue-in-laravel #vue.js

ThruwayBundle: Bundle for Building Real-time Apps in Symfony

ThruwayBundle

This a Symfony Bundle for Thruway, which is a php implementation of WAMP (Web Application Messaging Protocol).

Note: This project is still undergoing a lot of changes, so the API will change.

Quick Start with Composer

Install the Thruway Bundle

  $ composer require "voryx/thruway-bundle"

Update AppKernel.php (when using Symfony < 4)

$bundles = array(
    // ...
    new Voryx\ThruwayBundle\VoryxThruwayBundle(),
    // ...
);

Configuration

#app/config/config.yml

voryx_thruway:
    realm: 'realm1'
    url: 'ws://127.0.0.1:8081' #The url that the clients will use to connect to the router
    router:
        ip: '127.0.0.1'  # the ip that the router should start on
        port: '8080'  # public facing port.  If authentication is enabled, this port will be protected
        trusted_port: '8081' # Bypasses all authentication.  Use this for trusted clients.
#        authentication: false # true will load the AuthenticationManager
    locations:
        bundles: ["AppBundle"]
#        files:
#            - "Acme\\DemoBundle\\Controller\\DemoController"
#
# For symfony 4, this bundle will automatically scan for annotated worker files in the src/Controller folder
      

With Symfony 4 use a filename like: config/packages/voryx.yaml

If you are using the in-memory user provider, you'll need to add a thruway to the security firewall and set the in_memory_user_provider.

#app/config/security.yml

security: 
   firewalls:
        thruway:
            security: false	     

You can also tag services with thruway.resource and any annotation will get picked up

<service id="some.service" class="Acme\Bundle\SomeService">
    <tag name="thruway.resource"/>
</service>

Note: tagging a service as thruway.resource will make it public.

services:
    App\Worker\:
        resource: '../src/Worker'
        tags: ['thruway.resource']

Authentication with FOSUserBundle via WampCRA

Change the Password Encoder (tricky on existing sites) to master wamp challenge

#app/config/security.yml

security:
    ...
    encoders:
        FOS\UserBundle\Model\UserInterface:
            algorithm:            pbkdf2
            hash_algorithm:       sha256
            encode_as_base64:     true
            iterations:           1000
            key_length:           32

set voryx_thruway.user_provider to "fos_user.user_provider"

#app/config/config.yml

voryx_thruway:
    user_provider: 'fos_user.user_provider.username' #fos_user.user_provider.username_email login with email

The WAMP-CRA service is already configured, we just need to add a tag to it to have the bundle install it:

    wamp_cra_auth:
        class: Thruway\Authentication\WampCraAuthProvider
        parent: voryx.thruway.wamp.cra.auth.client
        tags:
            - { name: thruway.internal_client }

Custom Authorization Manager

You can set your own Authorization Manager in order to check if a user (identified by its authid) is allowed to publish | subscribe | call | register

Create your Authorization Manager service, extending RouterModuleClient and implementing RealmModuleInterface (see the Thruway doc for details)

// src/ACME/AppBundle/Security/MyAuthorizationManager.php


use Thruway\Event\MessageEvent;
use Thruway\Event\NewRealmEvent;
use Thruway\Module\RealmModuleInterface;
use Thruway\Module\RouterModuleClient;

class MyAuthorizationManager extends RouterModuleClient implements RealmModuleInterface
{
    /**
     * Listen for Router events.
     * Required to add the authorization module to the realm
     *
     * @return array
     */
    public static function getSubscribedEvents()
    {
        return [
            'new_realm' => ['handleNewRealm', 10]
        ];
    }

    /**
     * @param NewRealmEvent $newRealmEvent
     */
    public function handleNewRealm(NewRealmEvent $newRealmEvent)
    {
        $realm = $newRealmEvent->realm;

        if ($realm->getRealmName() === $this->getRealm()) {
            $realm->addModule($this);
        }
    }

    /**
     * @return array
     */
    public function getSubscribedRealmEvents()
    {
        return [
            'PublishMessageEvent'   => ['authorize', 100],
            'SubscribeMessageEvent' => ['authorize', 100],
            'RegisterMessageEvent'  => ['authorize', 100],
            'CallMessageEvent'      => ['authorize', 100],
        ];
    }

    /**
     * @param MessageEvent $msg
     * @return bool
     */
    public function authorize(MessageEvent $msg)
    {
        if ($msg->session->getAuthenticationDetails()->getAuthId() === 'username') {
            return true;
        }
        return false;
    }
}

Register your authorization manager service

     my_authorization_manager:
        class: ACME\AppBundle\Security\MyAuthorizationManager

Insert your service name in the voryx_thruway config

#app/config/config.yml

voryx_thruway:
    ...
        authorization: my_authorization_manager # insert the name of your custom authorizationManager
   ...

Restart the Thruway server; it will now check authorization upon publish | subscribe | call | register. Remember to catch error when you try to subscribe to a topic (or any other action) as it may now be denied and this will be returned as an error.

Usage

Register RPC

    use Voryx\ThruwayBundle\Annotation\Register;
    
    /**
     *
     * @Register("com.example.add")
     *
     */
    public function addAction($num1, $num2)
    {
        return $num1 + $num2;
    }

Call RPC

    public function call($value)
    {
        $client = $this->container->get('thruway.client');
        $client->call("com.myapp.add", [2, 3])->then(
            function ($res) {
                echo $res[0];
            }
        );
    }

Subscribe

     use Voryx\ThruwayBundle\Annotation\Subscribe;

    /**
     *
     * @Subscribe("com.example.subscribe")
     *
     */
    public function subscribe($value)
    {
        echo $value;
    }

Publish

    public function publish($value)
    {
        $client = $this->container->get('thruway.client');
        $client->publish("com.myapp.hello_pubsub", [$value]);
    }

It uses Symfony Serializer, so it can serialize and deserialize Entities

         use Voryx\ThruwayBundle\Annotation\Register;

    /**
     *
     * @Register("com.example.addrpc", serializerEnableMaxDepthChecks=true)
     *
     */
    public function addAction(Post $post)
    {
        //Do something to $post

        return $post;
    }

Start the Thruway Process

You can start the default Thruway workers (router and client workers), without any additional configuration.

$ nohup php app/console thruway:process start &

By default, the router starts on ws://127.0.0.1:8080

Workers

The Thruway bundle will start up a separate process for the router and each defined worker. If you haven't defined any workers, all of the annotated calls and subscriptions will be started within the default worker.

There are two main ways to break your application apart into multiple workers.

Use the worker property on the Register and Subscribe annotations. The following RPC will be added to the posts worker.

  use Voryx\ThruwayBundle\Annotation\Register;

  /**
  * @Register("com.example.addrpc", serializerEnableMaxDepthChecks=true, worker="posts")
  */
  public function addAction(Post $post)

Use the @Worker annotation on the class. The following annotation will create a worker called chat that can have a max of 5 instances.

  use Voryx\ThruwayBundle\Annotation\Worker;

  /**
  * @Worker("chat", maxProcesses="5")
  */
  class ChatController

If a worker is shut down with anything other than SIGTERM, it will automatically be restarted.

More Commands

To see a list of running processes (workers)

$ php app/console thruway:process status

Stop a process, i.e. default

$ php app/console thruway:process stop default

Start a process, i.e. default

$ php app/console thruway:process start default

Javascript Client

For the client, you can use AutobahnJS or any other WAMPv2 compatible client.

Here are some examples

Symfony 4 Quick Start

composer create-project symfony/skeleton my_project

cd my_project

composer require symfony/expression-language

composer require symfony/annotations-pack

composer require voryx/thruway-bundle:dev-master

Create config/packages/my_project.yml with the following config:

voryx_thruway:
    realm: 'realm1'
    url: 'ws://127.0.0.1:8081' #The url that the clients will use to connect to the router
    router:
        ip: '127.0.0.1'  # the ip that the router should start on
        port: '8080'  # public facing port.  If authentication is enabled, this port will be protected
        trusted_port: '8081' # Bypasses all authentication.  Use this for trusted clients.

Create the controller src/Controller/TestController.php

<?php
namespace App\Controller;

use Voryx\ThruwayBundle\Annotation\Register;

class TestController
{
    /**
     * @Register("com.example.add")
     */
    public function addAction($num1, $num2)
    {
        return $num1 + $num2;
    }
}

Test to see if the RPC has been configured correctly bin/console thruway:debug

 URI             Type Worker  File                                                  Method    
 com.example.add RPC  default /my_project/src/Controller/TestController.php         addAction 

For more debug info for the RPC we created: bin/console thruway:debug com.example.add

Start everything: bin/console thruway:process start

The RPC com.example.add is now available to any WAMP client connected to ws://127.0.0.1:8081 on realm1.

Author: Voryx
Source Code: https://github.com/voryx/ThruwayBundle 
License: 

#php #symfony