Learn Next.js by Building a Music Event Website

5 Day $9.99 Promo: https://bit.ly/3x6tlgR

30 Day $11.99 Promo: https://bit.ly/3akCCbG

Next.js Dev to Deployment

Learn Next.js by building a music event website

What you’ll learn

  • Build a music event application from start to finish
  • Learn the fundamentals of NextJS
  • Create a backend using Strapi CMS
  • JWT Authentication / HttpOnly Cookie Storage
  • Pagination, search, image uploading with Cloudinary
  • Static site generation

Requirements

  • Modern JavaScript
  • The basics of React

Description

Next.js is a framework for building server-side rendered React websites as well as static websites. This is a project-based course for learning Next.js. We will build a music events application that will give you the foundational knowledge that you need to create your own applications. We will use Strapi (a headless CMS) as our backend but you could just as well use anything

We will learn the fundamentals of Next.js like…

  • Pages & Routing
  • Data Fetching Methods - getServerSideProps, getStaticProps, getStaticPaths
  • Custom API Routes
  • Static Generation
  • CSS Styling
  • Image Optimization

In our main project, we will also be working with…

  • Strapi CMS
  • Authentication with JWT (JSON Web Tokens)
  • Authorization and access control
  • Storing HttpOnly Cookies on the server
  • Pagination, search filters, etc
  • Image uploading with Cloudinary integration
  • Deploying to Vercel and Heroku

Next.js can also be used as a static site generator. I will be adding a completely static blog project within a month of initial release and possibly a third project in the future

What should you know before taking this course?

You should know JavaScript basics and modern JavaScript features like arrow functions, restructuring, the spread operator

You should also know the basics of React. I will not be explaining things like components, props, JSX

Resources:

All of the final code will be provided in the project repos and all needed resources will be provided in the sections

Who this course is for:

  • People that want to learn NextJS
  • Learn the foundations to build a full stack application with CRUD, pagination, authentication and more

#next #react #javascript #web-development

What is GEEK

Buddha Community

Learn Next.js by Building a Music Event Website

NBB: Ad-hoc CLJS Scripting on Node.js

Nbb

Not babashka. Node.js babashka!?

Ad-hoc CLJS scripting on Node.js.

Status

Experimental. Please report issues here.

Goals and features

Nbb's main goal is to make it easy to get started with ad hoc CLJS scripting on Node.js.

Additional goals and features are:

  • Fast startup without relying on a custom version of Node.js.
  • Small artifact (current size is around 1.2MB).
  • First class macros.
  • Support building small TUI apps using Reagent.
  • Complement babashka with libraries from the Node.js ecosystem.

Requirements

Nbb requires Node.js v12 or newer.

How does this tool work?

CLJS code is evaluated through SCI, the same interpreter that powers babashka. Because SCI works with advanced compilation, the bundle size, especially when combined with other dependencies, is smaller than what you get with self-hosted CLJS. That makes startup faster. The trade-off is that execution is less performant and that only a subset of CLJS is available (e.g. no deftype, yet).

Usage

Install nbb from NPM:

$ npm install nbb -g

Omit -g for a local install.

Try out an expression:

$ nbb -e '(+ 1 2 3)'
6

And then install some other NPM libraries to use in the script. E.g.:

$ npm install csv-parse shelljs zx

Create a script which uses the NPM libraries:

(ns script
  (:require ["csv-parse/lib/sync$default" :as csv-parse]
            ["fs" :as fs]
            ["path" :as path]
            ["shelljs$default" :as sh]
            ["term-size$default" :as term-size]
            ["zx$default" :as zx]
            ["zx$fs" :as zxfs]
            [nbb.core :refer [*file*]]))

(prn (path/resolve "."))

(prn (term-size))

(println (count (str (fs/readFileSync *file*))))

(prn (sh/ls "."))

(prn (csv-parse "foo,bar"))

(prn (zxfs/existsSync *file*))

(zx/$ #js ["ls"])

Call the script:

$ nbb script.cljs
"/private/tmp/test-script"
#js {:columns 216, :rows 47}
510
#js ["node_modules" "package-lock.json" "package.json" "script.cljs"]
#js [#js ["foo" "bar"]]
true
$ ls
node_modules
package-lock.json
package.json
script.cljs

Macros

Nbb has first class support for macros: you can define them right inside your .cljs file, like you are used to from JVM Clojure. Consider the plet macro to make working with promises more palatable:

(defmacro plet
  [bindings & body]
  (let [binding-pairs (reverse (partition 2 bindings))
        body (cons 'do body)]
    (reduce (fn [body [sym expr]]
              (let [expr (list '.resolve 'js/Promise expr)]
                (list '.then expr (list 'clojure.core/fn (vector sym)
                                        body))))
            body
            binding-pairs)))

Using this macro we can look async code more like sync code. Consider this puppeteer example:

(-> (.launch puppeteer)
      (.then (fn [browser]
               (-> (.newPage browser)
                   (.then (fn [page]
                            (-> (.goto page "https://clojure.org")
                                (.then #(.screenshot page #js{:path "screenshot.png"}))
                                (.catch #(js/console.log %))
                                (.then #(.close browser)))))))))

Using plet this becomes:

(plet [browser (.launch puppeteer)
       page (.newPage browser)
       _ (.goto page "https://clojure.org")
       _ (-> (.screenshot page #js{:path "screenshot.png"})
             (.catch #(js/console.log %)))]
      (.close browser))

See the puppeteer example for the full code.

Since v0.0.36, nbb includes promesa which is a library to deal with promises. The above plet macro is similar to promesa.core/let.

Startup time

$ time nbb -e '(+ 1 2 3)'
6
nbb -e '(+ 1 2 3)'   0.17s  user 0.02s system 109% cpu 0.168 total

The baseline startup time for a script is about 170ms seconds on my laptop. When invoked via npx this adds another 300ms or so, so for faster startup, either use a globally installed nbb or use $(npm bin)/nbb script.cljs to bypass npx.

Dependencies

NPM dependencies

Nbb does not depend on any NPM dependencies. All NPM libraries loaded by a script are resolved relative to that script. When using the Reagent module, React is resolved in the same way as any other NPM library.

Classpath

To load .cljs files from local paths or dependencies, you can use the --classpath argument. The current dir is added to the classpath automatically. So if there is a file foo/bar.cljs relative to your current dir, then you can load it via (:require [foo.bar :as fb]). Note that nbb uses the same naming conventions for namespaces and directories as other Clojure tools: foo-bar in the namespace name becomes foo_bar in the directory name.

To load dependencies from the Clojure ecosystem, you can use the Clojure CLI or babashka to download them and produce a classpath:

$ classpath="$(clojure -A:nbb -Spath -Sdeps '{:aliases {:nbb {:replace-deps {com.github.seancorfield/honeysql {:git/tag "v2.0.0-rc5" :git/sha "01c3a55"}}}}}')"

and then feed it to the --classpath argument:

$ nbb --classpath "$classpath" -e "(require '[honey.sql :as sql]) (sql/format {:select :foo :from :bar :where [:= :baz 2]})"
["SELECT foo FROM bar WHERE baz = ?" 2]

Currently nbb only reads from directories, not jar files, so you are encouraged to use git libs. Support for .jar files will be added later.

Current file

The name of the file that is currently being executed is available via nbb.core/*file* or on the metadata of vars:

(ns foo
  (:require [nbb.core :refer [*file*]]))

(prn *file*) ;; "/private/tmp/foo.cljs"

(defn f [])
(prn (:file (meta #'f))) ;; "/private/tmp/foo.cljs"

Reagent

Nbb includes reagent.core which will be lazily loaded when required. You can use this together with ink to create a TUI application:

$ npm install ink

ink-demo.cljs:

(ns ink-demo
  (:require ["ink" :refer [render Text]]
            [reagent.core :as r]))

(defonce state (r/atom 0))

(doseq [n (range 1 11)]
  (js/setTimeout #(swap! state inc) (* n 500)))

(defn hello []
  [:> Text {:color "green"} "Hello, world! " @state])

(render (r/as-element [hello]))

Promesa

Working with callbacks and promises can become tedious. Since nbb v0.0.36 the promesa.core namespace is included with the let and do! macros. An example:

(ns prom
  (:require [promesa.core :as p]))

(defn sleep [ms]
  (js/Promise.
   (fn [resolve _]
     (js/setTimeout resolve ms))))

(defn do-stuff
  []
  (p/do!
   (println "Doing stuff which takes a while")
   (sleep 1000)
   1))

(p/let [a (do-stuff)
        b (inc a)
        c (do-stuff)
        d (+ b c)]
  (prn d))
$ nbb prom.cljs
Doing stuff which takes a while
Doing stuff which takes a while
3

Also see API docs.

Js-interop

Since nbb v0.0.75 applied-science/js-interop is available:

(ns example
  (:require [applied-science.js-interop :as j]))

(def o (j/lit {:a 1 :b 2 :c {:d 1}}))

(prn (j/select-keys o [:a :b])) ;; #js {:a 1, :b 2}
(prn (j/get-in o [:c :d])) ;; 1

Most of this library is supported in nbb, except the following:

  • destructuring using :syms
  • property access using .-x notation. In nbb, you must use keywords.

See the example of what is currently supported.

Examples

See the examples directory for small examples.

Also check out these projects built with nbb:

API

See API documentation.

Migrating to shadow-cljs

See this gist on how to convert an nbb script or project to shadow-cljs.

Build

Prequisites:

  • babashka >= 0.4.0
  • Clojure CLI >= 1.10.3.933
  • Node.js 16.5.0 (lower version may work, but this is the one I used to build)

To build:

  • Clone and cd into this repo
  • bb release

Run bb tasks for more project-related tasks.

Download Details:
Author: borkdude
Download Link: Download The Source Code
Official Website: https://github.com/borkdude/nbb 
License: EPL-1.0

#node #javascript

Eva  Murphy

Eva Murphy

1625674200

Google analytics Setup with Next JS, React JS using Router Events - 14

In this video, we are going to implement Google Analytics to our Next JS application. Tracking page views of an application is very important.

Google analytics will allow us to track analytics information.

Frontend: https://github.com/amitavroy/video-reviews
API: https://github.com/amitavdevzone/video-review-api
App link: https://video-reviews.vercel.app

You can find me on:
Twitter: https://twitter.com/amitavroy7​
Discord: https://discord.gg/Em4nuvQk

#next js #js #react js #react #next #google analytics

Idrish Dhankot

Idrish Dhankot

1605772591

How to build an Elearning app or website like Coursera

E-learning has completely changed the education industry, specifically in the time of COVID-19. With the increased use of online learning apps, there is a huge growth opportunity that lies ahead for some of the industry.

Developing an e-learning app requires extensive experience in coding. If you are looking to develop an e-learning app, WebClues Infotech is the perfect company to guide you at every step including the Concept, Business Plan, Launch, Revenue Generation, and Support.

To know more about How you can develop and what is the cost to develop e-learning apps like Coursera read our blog How to build an E-learning app or website like Coursera

#how to build an e learning website like coursera #how much would it cost to create a website like coursera #cost of website like coursera #how to make an app like coursera #how to create a website like coursera #e learning website cost

How much does it cost to develop an app for the event planning business?

Event planning & management app is the generic term for a wide range of mobile app products that are used in the management of professional and academic conferences, trade exhibitions, conventions, and events such as Continuing Professional Development meetings.

Development Cost to build an Event Planning & Management App:

Based on the number of hours invested, features, and technologies involved, you can determine a rough estimate of Event Planning or Management app development cost. Cost depends on various factors such as follows.

• Basic & Advance Features

• Technology used

• Chosen Platform (iOS & Android)

• The Location of the app development center

• Mobile App complexity

• Numbers of hours invested in Project

The cost to create such an app can be as high as the number of integrated technologies. However, an app with basic features is certain to cost somewhere around $10,000 to $35,000 for single platforms (Android or iOS). If you want to make an app for various platforms then the cost will be vary based on features, location, development team, etc factors.

Best Event Planning & Management App Development Company:

Event Management apps streamline the entry process for events. Save your precious time for a smooth experience and devote time for more significant activities such as increasing revenue with a mobile app from AppClues Infotech, a top Events & Exhibitions App Development Company based in the USA and offer the best services across the world.

Save your time and money with their cost-effective mobile apps to easily collaborate with the participants of the events. Real-time chats help to carry out video conferencing with both the participants and the employees as well. Their mobile apps increase the efficiency of multiple events by sending important messages to the participants with a single click.

Offering services that make events successful:

  • Corporate events
  • Conferences
  • Trade shows
  • Sports and entertainment
  • Custom event schedule app development

Incorporate features that elevate experiences

  • Event creation
  • Event search
  • Event calendar
  • Ticket booking
  • Photo sharing
  • GPS
  • Push notification
  • Chatbot
  • Messaging
  • In-app payment
  • News & social feeds
  • In-app analytics

#how to develop an event app #event management app development company #custom event management app development #how to build an event planning app #develop a mobile app for events #cost to build a event management app

How much does it cost to build a virtual event application in 2021?

A Brief about Virtual Events
After the Covid-19 virtual event trend rising and now the demand has more increased. Digital activities are events held online in their most simplistic sense. Virtual events use web-based platforms to connect thousands of people worldwide.

Virtual events can cover anything, including individual events, but generally, four kinds of virtual events are available: virtual conferences, webinars, hybrid internal & external events. Google Meet, Evia, Digitell, ON 24, Zoom, GoToMeeting and more are among the top virtual event platforms.

Cost to Build a Virtual Event Application in 2021
The development cost of the application mostly depends on the features of a mobile application. The approx cost to build a virtual event app between $20,000 to $50,000 for a single platform (Android & iOS). It may go high if you choose the advanced technology and features while developing.

Best Virtual Event App Development Company

AppClues Infotech is a pioneer in providing innovative & unique mobile app solutions that offer impressive results and can make things easier. If you are looking forward to creating an application that can host your virtual events and meetings without gathering your team in the office then you surely are in the right place.

Why Choose AppClues Infotech for Virtual Event App Development?

• Innovative Solutions
• Round the Clock Availability
• Latest Technology
• Experience in the Field
• On-Time Delivery

For more info:
Website: https://www.appcluesinfotech.com/
Email: info@appcluesinfotech.com
Call: +1-978-309-9910

#virtual event app development #a complete guide to building a virtual event app #best mobile event apps development company #mobile event apps development company in usa #top virtual event apps development company in usa #virtual event platform development guide