Accept giropay payments with Stripe.js

In this episode you’ll learn how to confirm a giropay PaymentIntent with Stripe.js. giropay is a popular German payment method and accounts for 10% of online checkouts in Germany.

Table of contents

00:00 Introduction
00:26 Verify the server endpoints
00:53 Create the payment form
02:06 Create the PaymentIntent on the server
03:03 Confirm the PaymentIntent on the client
03:30 Test giropay payments
03:59 Output payment result
04:51 Fetch the publishable key from the server
05:21 Recap

Server implementations

Ruby - https://youtu.be/079khYtqWPo
Python - https://youtu.be/3s4Dwox7oTQ
PHP - https://youtu.be/BPfpPGl85tk
Node.js - https://youtu.be/BPfpPGl85tk
Java - https://youtu.be/BPfpPGl85tk
Go - https://youtu.be/BPfpPGl85tk
.NET - https://youtu.be/BPfpPGl85tk

Presenter

Matthew Ling - Developer Advocate at Stripe - https://twitter.com/mattling_dev

Resources

Official client library: https://stripe.com/docs/js/payment_intents/confirm_giropay_payment
Official documentation: https://stripe.com/docs/payments/giropay
Code: https://github.com/stripe-samples/accept-a-payment/blob/main/custom-payment-flow/client/html/giropay.js

Support

If you have a question, please feel free to reach out to our support team at https://support.stripe.com/ or on Discord at https://stripe.com/go/developer-chat.

Updates

Sign up to stay updated with developer news: https://go.stripe.global/dev-digest.

Feedback

If you have any feedback about this or other episodes, let us know: https://forms.gle/VjNqzRhotM2snYo88.

#stripe.js #giropay

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Accept giropay payments with Stripe.js

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

Stripe Payment Gateway Integration Example In Laravel 8

In this post i will share you stripe payment gateway integration example in laravel 8, stripe payment gateway is integrated in many website for payment collection from client, In this time many e-commerce website and other shopping websites are use stripe payment gateway.

So, here we will learn stripe payment gateway integration in laravel 8.

Read More : Stripe Payment Gateway Integration Example In Laravel 8

https://websolutionstuff.com/post/stripe-payment-gateway-integration-example-in-laravel-8


Read Also : How To Integrate Paypal Payment Gateway In Laravel

https://websolutionstuff.com/post/how-to-integrate-paypal-payment-gateway-in-laravel

#stripe payment gateway integration example in laravel 8 #laravel 8 stripe payment gateway integration example #stripe payment gateway integration in laravel 8 #stripe payment gateway #laravel8 #payment gateway

Accept giropay payments with Stripe.js

In this episode you’ll learn how to confirm a giropay PaymentIntent with Stripe.js. giropay is a popular German payment method and accounts for 10% of online checkouts in Germany.

Table of contents

00:00 Introduction
00:26 Verify the server endpoints
00:53 Create the payment form
02:06 Create the PaymentIntent on the server
03:03 Confirm the PaymentIntent on the client
03:30 Test giropay payments
03:59 Output payment result
04:51 Fetch the publishable key from the server
05:21 Recap

Server implementations

Ruby - https://youtu.be/079khYtqWPo
Python - https://youtu.be/3s4Dwox7oTQ
PHP - https://youtu.be/BPfpPGl85tk
Node.js - https://youtu.be/BPfpPGl85tk
Java - https://youtu.be/BPfpPGl85tk
Go - https://youtu.be/BPfpPGl85tk
.NET - https://youtu.be/BPfpPGl85tk

Presenter

Matthew Ling - Developer Advocate at Stripe - https://twitter.com/mattling_dev

Resources

Official client library: https://stripe.com/docs/js/payment_intents/confirm_giropay_payment
Official documentation: https://stripe.com/docs/payments/giropay
Code: https://github.com/stripe-samples/accept-a-payment/blob/main/custom-payment-flow/client/html/giropay.js

Support

If you have a question, please feel free to reach out to our support team at https://support.stripe.com/ or on Discord at https://stripe.com/go/developer-chat.

Updates

Sign up to stay updated with developer news: https://go.stripe.global/dev-digest.

Feedback

If you have any feedback about this or other episodes, let us know: https://forms.gle/VjNqzRhotM2snYo88.

#stripe.js #giropay

Accept a card payment with React Stripe.js

Learn the front end steps for accepting a payment with a card from your customers using a custom form in a React application. You’ll learn how to use the CardElement component and how to use the confirmCardPayment method from Stripe.js to securely confirm a PaymentIntent client-side. This method handles 3D Secure and Secure Customer Authentication (SCA).

Table of contents

00:45 Confirm the server is working as expected
02:00 Add a new payment form
03:52 Add the CardElement component
05:57 Add useElements and useStripe hooks
06:36 Create PaymentIntent on the server
08:07 Add StatusMessages helper component
09:48 Confirm with confirmCardPayment
12:21 View successful payment in the dashboard
13:00 Test 3D Secure and Secure Customer Authentication card
14:12 Add error handling
15:40 Review

#react stripe.js #stripe.js #react

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