An guide on how to generate payment link

What is the Payment link?

A payment link is a URL or QR code that takes customers to stand-alone web content created in very little time. A customer who clicks on a link is redirected to the checkout page where they will complete the transaction. you'll find a singular link for every good or service you’re selling. One payment link can facilitate a transaction for one intended recipient, like an invoice would, up to an infinite number of shoppers.

Here we are using a Square_up payment gateway to create a payment link with an example of a request and response.

To Payment link, we have to call four APIs.

1- Create Customer API

2- Create Order API

3- Create Invoice API

4 - Publish Invoice API

Let's start with Api's request & response

1- Create Customer API - First of all we have to create a customer, for this, we need an idempotency key(this is auto-generated ) and token id(this is generated into the square_up account)

Request Parameter -

Response of Customer API.

2- Create Order API - In the order API we will create the payment amount as per the above customer purchase request for this we need a customer id (this is generated in the above API response) and the location id (this is generated into the square_up account)

Request parameter  - 

Response of order API - 

3- Create Invoice API -  in this API we will create an invoice number for this we need a token id, customer id, location id, and order id. (this all id's will generate in the above api's)

Request parameter - 

Response of invoice api - 

4- Publish invoice  API-  here we will find the payment link just by call the public invoice api.

Request

Response parameter - 

Finally we will get the payment link - https://squareupsandbox.com/pay-invoice/inv:0-ChBzdE0qKxCgsM0OpIYN7T1IELMK