ACCESS_TOKEN

PAYMENT_ID

IDEMPOTENCY_KEY

MERCHANT_ID

LOCATION_ID

REFUND_ID

EMPTY_ORDER_ID

ORDER_ID

INVOICE_ID

CUSTOMER_ID

VERSION

Learn about integrating Square APIs for business operations in JavaScript. Gain hands-on experience with payment workflows, order creation, and invoice generation to enhance financial services.

Square.tar.gz

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demo-app

Square offers digital payments and financial services to its customers. Developers can integrate Square APIs to help businesses grow. This course provides a strong foundation for integrating Square APIs for business operations.

In this course, you’ll first get an introduction to Square APIs and the different endpoints it offers. Then, you’ll be provided with a step-by-step guide on how to sign up for an account and retrieve the API key. Next, you’ll get a hands-on guide on using payment, order, and invoice APIs. You’ll use these APIs to complete the purchase and payment workflow as these usually require creating an order, generating an invoice, and finally paying. Square takes care of all of it with just a few API callS. By the end of the course, you’ll get practical experience with an e-commerce web application integrated with Square APIs.

After completing the course, you’ll be able to implement different payment workflows and handle various financial services with ease with Square APIs in JavaScript.

Handling Financial Services with Square API in JavaScript

The possible statuses of payments are `APPROVED`, `COMPLETED`, `CANCELED`, or `FAILED`. Let's try to understand the workflow of Square payments:

- `COMPLETED`: If the `autocomplete` field is set to `true` in the `CreatePayment` request, the payment is processed immediately, and the resulting `Payment` object has the `status` field set to `COMPLETED`. This is also the default behavior. It  means that if the `autocomplete` field is not set, the payment is set to complete immediately after they are created.

- `APPROVED`: If the `autocomplete` field is set to `false` in the `CreatePayment` request, the resulting `Payment` object has a status set to `APPROVED`, which means that we've only requested the payment authorization. We then have the following two options:

   - `COMPLETED`: Complete the payment by calling `CompletePayment`, which changes the `status` to `COMPLETED`.

   - `CANCELED`: Cancel the payment by calling `CancelPayment`, which changes the `status` to `CANCELED`.

- `FAILED`: If Square is unable to get the requested funds, the status is set to `FAILED`.



Learn to complete and cancel payment using the payment ID and idempotency key.

Cancel or Complete Payments

Introduction

Square Business APIs

Manage Payments

Process Orders

Handle Invoices

Square SDK

APIs Integration in React

Conclusion

Cancel or Complete Payments