1. create a ionic project
  * ionic start ionicStripe blank
2. install the stripe plugin
  * ionic cordova plugin add cordova-plugin-stripe
  * npm install --save @ionic-native/stripe
3. add stripe to module.ts import { Stripe } from '@ionic-native/stripe';

4. in payment page :
  * import stripe again import { Stripe } from "@ionic-native/stripe"; and add it to constructor

5. get credit card information

 cardinfo: any = {
    number: 4242424242424242,
    expMonth: 8,
    expYear: 2020,
    cvc: 213
  }
6. I need togenerate token with stripe ans to make payment,
in my case, I record all the orders in my database before starting the payment process with stripe

  * this.stripe.setPublishableKey('pk_test**************');
  * this.stripe.createCardToken(this.cardinfo).then((response)=>{
    // I get my token here response.id
  });

 7. i need to save the orders in my database
 this.stripe.createCardToken(this.cardinfo).then((response)=>{
    // I get my token here response.id
    const Payment = skygear.Record.extend('payment');
           skygear.publicDB.save(new Payer({
            'token': response,
            'description':"decri[tion payment",
            'prix':100,
          })).then((record) => {
            console.log(record);
          }, (error) => {
            console.error(error);
          });
  });
 8. i create a cloud function

 const skygear =require ('skygear');
const skygearCloud = require('skygear/cloud');
var stripe = require("stripe")("sk_test********************");
skygearCloud.afterSave('payment', function(record, original, pool, options) {
    // write your code
    stripe.charges.create({
      amount: record.prix,
      currency: "usd",
      source: record.token.id,
      description: record.description
    }, function(err, charge) {
      if (err) {
        console.log("Erreur" + JSON.stringify(err))
      }
      // asynchronously called
    });
}, {
    async: false
});