Hana Juali

Hana Juali

1603158179

How to Implement Netlify CMS with Next.js

If you’re starting a new React project, you might want to consider  Next.js and  Netlify CMS. In this article, we take a look at why this would be a great choice and walk through the process of setting up a new project using these technologies.

Why Next.js?

As I stated in  a previous article:

“There are many important details you need to consider when you start a new project with React. Your code has to be bundled using a bundler like webpack and transformed using a compiler like Babel.

Create React App_ can be a nice tool to handle this for you and give you a massive head start, but what about code-splitting, pre-rendering for performance, and SEO or server-side rendering?_

To build a complete React application, you need more than CRA provides you with. You can save yourself some time by using Next.js, a React framework that provides a solution to all of these problems.”

If you want to read more about CRA vs. Next.js, check out  Stack choices: Create React App vs Next.js.

Why Netlify CMS?

Netlify CMS is an open-source Git-based content management system. It is based on client-side JavaScript and handles content updates directly in Git. Because all content is just stored in your Git repository, you don’t need to have anything hosted on a server. It’s completely free and a great fit to combine with Next.js to build landing pages or blogs that are manageable through a nice UI.

#netlify #nextjs #react #javascript

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How to Implement Netlify CMS with Next.js
JavaScript Daily

JavaScript Daily

1632537859

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

Effie Predovic

Effie Predovic

1627848360

Build a Sports News Blog Website using NEXT JS and Strapi CMS in 7 Hour

In this Video, we are going to build full news Blog Website with the help of NEXT JS and Strapi Headless CMS in 7 hour. While building this application you will also learn basic concept of Next JS.

Below is the timestamp
0:00 Introduction
0:40 Application Demo
13:45 Important Note
15:58 What is Next JS ?
20:00 Set-up Next JS Project
22:15 Understanding Next JS Folder
25:14 Creating About Page
28:53 Understand Dynamic Route
32:05 Understand Navigation
34:52 Understand Head in Next JS
37:26 Creating Layout for Our App
47:06 Shorter Import path
53:06 Working on Header
57:22 Working on Footer
59:17 Working on Hero Component
01:03:12 Configure API folder
01:06:47 Understand data fetching in Next JS
01:11:39 Working on Homepage
01:16:19 Creating Custom 404 page
01:20:39 Working on each news item component
01:30:59 Working on Single News Page
01:41:30 Fixing common API issue
01:47:37 Configure env variable
01:49:17 Configure Strapi CMS and Next JS Starter Project(i.e. if you skip basic of Next JS)
01:56:23 Set-Up Cloudinary in Strapi Backend
02:03:04 Creating collection in Strapi
02:08:24 Replacing API route with Strapi API
02:12:54 Configure Cloudinary in Next JS App
02:19:24 Working on Add News Page
02:40:34 Adding Edit and Delete Button
02:41:54 Working on Edit News Page
02:46:44 Working on Delete News
02:55:04 Working on Image Upload
03:16:44 Working on Search Functionality
03:34:24 Working on Pagination
03:48:54 Working on Signin Page
03:59:44 Working on Signup Page
04:05:44 Set-up context in our App
04:26:00 Working on Signin API
04:48:54 Persisting user in our App
04:57:24 Working on Signout
05:01:14 Working on Signup API
05:07:44 Creating Custom user news API in Strapi
05:24:54 Working on Dashboard
05:40:38 Creating User Policy
05:55:58 Apply User Policy in our Front-end
06:12:08 Added user info on each news article
06:14:58 Integrating Disqus Comment in our App
06:30:48 Working on Scroll to Top
06:40:28 Final Touch

Resource file for this Project :- https://github.com/trickjsprogram/sport-news-resource
Next JS Starter Project :- https://github.com/trickjsprogram/next-js-strapi

#next #next js #cms

Eva Murphy

Eva Murphy

1625751960

Laravel API and React Next JS frontend development - 28

In this video, I wanted to touch upon the functionality of adding Chapters inside a Course. The idea was to not think much and start the development and pick up things as they come.

There are places where I get stuck and trying to find answers to it up doing what every developer does - Google and get help. I hope this will help you understand the flow and also how developers debug while doing development.

App url: https://video-reviews.vercel.app
Github code links below:
Next JS App: https://github.com/amitavroy/video-reviews
Laravel API: https://github.com/amitavdevzone/video-review-api

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

#next js #api #react next js #next #frontend #development

Meghal Raval

Meghal Raval

1607565721

Deploy Next.js on Netlify in ONE Click!! | Next.js Build Plugin on Netlify

Did you know that you can deploy your NEXT.js app to Netlify in one click?

In this video, we will look at the new Next.js build plugin on Netlify and deploy a Next.js app to Netlify super fast!

#next #netlify #react #javascript #developer