> For the complete documentation index, see [llms.txt](https://developer.smarts.ee/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.smarts.ee/master.md).

# Introduction

## Powered by: 

![](/files/-M48qQNAgii-X_FUv6Qp)

## General Flow

* Customer scans store's QR code with Smarts app to start shopping
* Customer will add products to shopping cart by scanning SKU or searching it from product catalog
* Customer will pay for the purchase by scanning QR code at the store exit.

## Integration

Smarts is communicating with merchant through restful API-s. It is required to create API endpoints in the merchant side to establish communication between the Smarts and merchant. 

*Smarts offers **2 different** integration methods*

####       [Spring Boot Integration](/integration/spring-boot-starter/overview.md) - Generates secured and required API endpoints automatically

      [**Custom integration**](/integration/custom-integration/overview.md) **- Create API endpoints and data objects manually**

Smarts need API-s to exchange  

* Product information
* Invoice and payment confirmation information
* Purchase check information
* Marketing information
* Home delivery information
* Loyalty card information

{% hint style="warning" %}
Smarts **strongly** **recommends** Spring Boot Starter integration.
{% endhint %}

## Payment processing

Smarts is using **Stripe** payment provider because it allows to

* move payment amount from client to merchant directly **without third party intervention**
* start payment in the **merchant behalf**
* **one-click onboarding** for merchant with Stripe OAuth service

   [Check stripe pricing here](https://stripe.com/en-ee/pricing)

## Before you open your first store

1.) Open Smarts account and create new subscription

2.) Open Stripe Merchant [account](https://stripe.com/en-ee).

3.)  Choose the integration method

* [Spring Boot Starter](/integration/spring-boot-starter/overview.md)
* [Customer Integration](/integration/custom-integration/overview.md)

For further questions please write an email or call 

<kristo.truu@smarts.ee>&#x20;

+372 563 14 762