开发一个Shopify插件，Shopify商城可以安装该插件；当用户在商城下单后，插件把订单数据按照指定格式传给自己的服务器；
Getting started with Shopify App Bridge: https://shopify.dev/tools/app-bridge/getting-started
REST Admin API reference: https://shopify.dev/docs/admin-api/rest/reference
Shopify Rest APIs: https://shopify.dev/docs/admin-api/rest/reference
Shopify Payments APIs: https://shopify.dev/docs/admin-api/rest/reference/shopify_payments
Authenticate with OAuth: https://shopify.dev/tutorials/authenticate-with-oauth
access-scopes: https://shopify.dev/docs/admin-api/access-scopes
Webhook: https://shopify.dev/docs/admin-api/rest/reference/events/webhook
Event: https://shopify.dev/docs/admin-api/rest/reference/events/event
API(Ruby & Node.js & PHP): https://shopify.dev/tools/libraries/admin-api
Java SDK: https://github.com/ChannelApe/shopify-sdk/
Build a sales channel with the Checkout API: https://shopify.dev/tutorials/build-a-sales-channel-with-the-checkout-api
Complete a sales channel payment with the Checkout API: https://shopify.dev/tutorials/complete-a-sales-channel-payment-with-checkout-api
Add a payment gateway to your partners account: https://shopify.dev/tutorials/add-payment-gateway-to-partner-account
Publish your hosted payment gateway: https://shopify.dev/tutorials/publish-your-hosted-payment-gateway
