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Paypal button event onshippingChange is not working at all can somebody tell me why?

Can somebody tell me why? This is a simple integration of paypal sdk for javascript. And It is working fine except that the event bellow onShippingChange is never fired. I've searching this for 2 days now. I need to update my price according to the user address.
src="https://www.paypal.com/sdk/js?client-id=XXXXXXXXX"> // Required. Replace SB_CLIENT_ID with your sandbox client ID.
</script>
<div id="paypal-button-container"></div>
<script>
paypal.Buttons({
createOrder: function(data, actions) {
// This function sets up the details of the transaction, including the amount and line item details.
console.log('createOrder ' + data);
return actions.order.create({
application_context : {
shipping_preference: 'SET_PROVIDED_ADDRESS'
},purchase_units: [{
shipping: {
address: {
address_line_1: '555 example bs',
admin_area_2: 'San bastard',
admin_area_1: 'CA',
postal_code: '95111',
country_code: 'CA'
}
},
amount: {
value: '0.01'
}
}]
});
},
onApprove: function(data, actions) {
console.log('onApprove ' + data);
// This function captures the funds from the transaction.
return actions.order.capture().then(function(details) {
// This function shows a transaction success message to your buyer.
alert('Transaction completed by ' + details.payer.name.given_name);
});
},
onClientAuthorization: (data) => {
console.log('onClientAuthorization - you should probably inform your server about completed transaction at this point', data);
this.showSuccess = true;
},
onShippingChange: (data, actions) => {
// this event is never fired no matter what I do
console.log('onShippingChange - Shipping information have changed', data, actions);
},
onCancel: (data, actions) => {
console.log('OnCancel', data, actions);
},
onError: err => {
console.log('OnError', err);
},
onClick: (data, actions) => {
console.log('onClick', data, actions);
}
}).render('#paypal-button-container');
//This function displays Smart Payment Buttons on your web page.
</script>

here is the solution of this question first of the shippings fees can only be managed after you enable it on your account (Login to PayPal >> Hover over to the profile name >> Account Settings >> Shipping >> Here you can create shipping profiles as per your requirements.) it will be available only for customer who pay from a paypal account. For any other payment you won't be able to manage it.
Regards

PayPal integration 400 Bad Request / Order could not be captured

I'm trying to integrate PayPal and I get the error below
You can test the code here with any PayPal sandbox buyer account:
Codepen
Here is the code I'm using
paypal.Buttons({
createOrder: function (data, actions) {
// This function sets up the details of the transaction, including the amount and line item details.
return actions.order.create({
purchase_units: [{
amount: {
value: '5.00'
}
}]
});
},
onApprove: function (data, actions) {
// This function captures the funds from the transaction.
return actions.order.capture().then(details => {
// This function shows a transaction success message to your buyer.
alert('Transaction completed by ' + details.payer.name.given_name);
});
}
}).render('#paypal-button-container');
more about the error

Testing your Codepen from the Network tab, you are getting a COMPLIANCE_VIOLATION -- probably due to the country of the account you are testing with not being properly set up in sandbox.
Try simply using a different country for your testing within sandbox. Create a new business account at https://www.paypal.com/signin?intent=developer&returnUri=https%3A%2F%2Fdeveloper.paypal.com%2Fdeveloper%2Faccounts%2F , and then create a new REST app with a new ClientID/Secret for it.

no_shipping option in new Smart Buttons API

I'm integrating the new Smart Buttons into my website. I want to specify a no_shipping option, so that the user would not be prompted for their address on PayPal pages
paypal.Buttons({
createOrder: function(data, actions) {
// This function sets up the details of the transaction, including the amount and line item details.
return actions.order.create({
purchase_units: [{
amount: {
value: '0.01'
}
}]
});
},
onApprove: function(data, actions) {
// This function captures the funds from the transaction.
return actions.order.capture().then(function(details) {
// This function shows a transaction success message to your buyer.
alert('Transaction completed by ' + details.payer.name.given_name);
});
}
}).render('#paypal-button-container');
//This function displays Smart Payment Buttons on your web page.
</script>
How do I implement it? I do not get it.

The v2/orders application_context object is documented here.
purchase_units: [{
amount: {
value: '0.01'
},
}],
application_context: {
shipping_preference: 'NO_SHIPPING'
}

paypal: How to get order id and pass to transaction details page

I am new to PayPal integration. I need to get the order Id for getting the details of the transaction and wants to display the transaction details to the customer on another page.
Following is the javascript code. The following code shows OrderId = 0.
<script>
paypal.Buttons({
createOrder: function (data, actions) {
// This function sets up the details of the transaction, including the amount and line item details.
return actions.order.create({
application_context: {
return_url: 'https://example.com',
cancel_url: 'https://example.com'
},
purchase_units: [{
amount: {
currency_code: 'USD',
value: '<%=bookingAmount%>'
}
}]
});
},
onApprove: function (data, actions) {
// Capture the transaction funds
return actions.order.capture().then(function () {
// Show a confirmation to the buyer
alert('Transaction complete!' & data.orderID);
});
}
}).render('#paypal-button-container'); //This function displays Smart Payment Buttons on your web page.
</script>
Question: The above code does not work as required. How to resolve this?

Using the following line of code, I was able to retrieve details of the transaction. -
"return actions.order.capture().then(function (details)"
Following is the complete running code -
paypal.Buttons({
createOrder: function (data, actions) {
// This function sets up the details of the transaction, including the amount and line item details.
return actions.order.create({
purchase_units: [{
amount: {
currency_code: 'USD',
value: '<%=bookingAmount%>'
}
}]
});
},
onApprove: function (data, actions) {
// Capture the transaction funds
return actions.order.capture().then(function (details) {
console.log(JSON.stringify(details));
});
}
}).render('#paypal-button-container');

Paypal Button returns 'Order could not be captured'

I am using paypal Buttons SDK. The Code activating the button is:-
paypal.Buttons({
createOrder: ( data, actions ) => {
return actions.order.create({
purchase_units: [{
amount: {
value: this.amount.toFixed(2),
currency_code: "GBP",
}
}]
})
},
onApprove: ( data, actions ) => {
return actions.order.capture().then(details => {
console.log('details',details);
})
},
onError: ( error ) => {
console.log('error',error);
}
}).render('#paypal-button-container')
The User Interface operates as expected, there is then a long pause before the error is returned. The client_id used in the script tag is for a sandbox account. I can find not documentation describing possible cause for the error...
error Error: Order could not be captured
Any advice greatly appreciated.
Paypal.. https://developer.paypal.com/docs/checkout/integrate/#1-get-paypal-rest-api-credentials

As suggested in the comment try to do a curl with this URL :
https://www.sandbox.paypal.com/smart/api/order/ODER_ID/capture
And it replies with code 401 and did some research and end up finding that I was using a wrong account to make payments.
I refresh the PayPal login and login with the correct sandbox buyer account and make the payment and It works.
Probably paypal should give correct errors messages.

Can you check using CURL which returns the Paypal server?
This is a comment but I do not have 50pkt S / O. Sorry.

If you get a Xss message in the console, just try in private navigation, disconnect from your paypal buyer account.

I have had the same "Order could not be captured" error at "actions.order.capture()" in the onApprove callback.
In my case, it worked on the first run but not the subsequent calls. I found my order always had the same invoice_id. I removed invoice_id and Paypal stopped complaining.
It should be good if the invoice_id was always unique.

Same problem with Nuxt , checkout works but catch error response : Error 500 order-could-not-be-captured
<template>
<no-ssr>
<v-layout row wrap>
<div ref="paypal"></div>
</v-layout>
</no-ssr>
</template>
Script
mounted() {
const script = document.createElement("script");
script.src =
"https://www.paypal.com/sdk/js?client-id=MyKeyID";
script.addEventListener("load", this.setLoaded);
document.body.appendChild(script);
},
methods: {
setLoaded: function() {
this.loaded = true;
window.paypal
.Buttons({
createOrder: (data, actions) => {
return actions.order.create({
purchase_units: [
{
description: "Test description",
amount: {
currency_code: "USD",
value: 1
}
}
]
});
},
onApprove: async (data, actions) => {
const order = await actions.order.capture();
this.paidFor = true;
console.log(order);
},
onError: err => {
console.log(err);
}
})
.render(this.$refs.paypal);
}