# 架构

本页为开发人员和高级用户解释 WCPOS 的技术架构。

## 双部系统[​](#two-part-system "直接链接到 双部系统")

WCPOS 被设计为一个双部系统：

1. **PHP 插件：** 托管在您的服务器上，这是一个相对较小的插件，扩展了 [WooCommerce REST API](/zh-CN/reference/wc-rest-api.md)。

2. **JavaScript 客户端：** 该客户端在您的浏览器或桌面应用程序中本地运行，之后还会在 iOS 和 Android 应用中运行。

您可以将其视为两个独立的世界：

* *PHP 世界* 是通过 WordPress 和 WooCommerce 进行数据管理的地方。
* *JavaScript 世界* 本地复制您的 WooCommerce 商店，针对快速搜索和离线使用进行了优化。

![pos-client-woo-server](data:image/svg+xml;base64,<svg aria-roledescription="sequence" role="graphics-document document" viewBox="-50 -10 678.5 490" style="max-width: 100%;font-family: sans-serif" xmlns="http://www.w3.org/2000/svg" width="100%" id="graph-div" height="100%" xmlns:xlink="http://www.w3.org/1999/xlink">
  <defs>
    <marker orient="auto" markerHeight="12" markerWidth="12" markerUnits="userSpaceOnUse" refY="5" refX="7.9" id="arrowhead">
      <path d="M 0 0 L 10 5 L 0 10 z"></path>
    </marker>
    <symbol id="woocommerce-logo" viewBox="0 0 256 153" preserveAspectRatio="xMidYMid">
      <path d="m23.759 0h208.38c13.187 0 23.863 10.675 23.863 23.863v79.542c0 13.187-10.675 23.863-23.863 23.863h-74.727l10.257 25.118-45.109-25.118h-98.695c-13.187 0-23.863-10.675-23.863-23.863v-79.542c-0.10466-13.083 10.571-23.863 23.758-23.863z" fill="#7f54b3"/>
      <path d="m14.578 21.75c1.4569-1.9772 3.6423-3.0179 6.5561-3.226 5.3073-0.41626 8.3252 2.0813 9.0537 7.4927 3.226 21.75 6.7642 40.169 10.511 55.259l22.79-43.395c2.0813-3.9545 4.6829-6.0358 7.8049-6.2439 4.5789-0.3122 7.3886 2.6016 8.5333 8.7415 2.6016 13.841 5.9317 25.6 9.8862 35.59 2.7057-26.433 7.2846-45.476 13.737-57.236 1.561-2.9138 3.8504-4.3707 6.8683-4.5789 2.3935-0.20813 4.5789 0.52033 6.5561 2.0813 1.9772 1.561 3.0179 3.5382 3.226 5.9317 0.10406 1.8732-0.20813 3.4341-1.0407 4.9951-4.0585 7.4927-7.3886 20.085-10.094 37.567-2.6016 16.963-3.5382 30.179-2.9138 39.649 0.20813 2.6016-0.20813 4.8911-1.2488 6.8683-1.2488 2.2894-3.122 3.5382-5.5154 3.7463-2.7057 0.20813-5.5154-1.0406-8.2211-3.8504-9.678-9.8862-17.379-24.663-22.998-44.332-6.7642 13.32-11.759 23.311-14.985 29.971-6.1398 11.759-11.343 17.795-15.714 18.107-2.8098 0.20813-5.2033-2.1854-7.2846-7.1805-5.3073-13.633-11.031-39.961-17.171-78.985-0.41626-2.7057 0.20813-5.0992 1.665-6.9724zm223.64 16.338c-3.7463-6.5561-9.2618-10.511-16.65-12.072-1.9772-0.41626-3.8504-0.62439-5.6195-0.62439-9.9902 0-18.107 5.2033-24.455 15.61-5.4114 8.8455-8.1171 18.628-8.1171 29.346 0 8.013 1.665 14.881 4.9951 20.605 3.7463 6.5561 9.2618 10.511 16.65 12.072 1.9772 0.41626 3.8504 0.62439 5.6195 0.62439 10.094 0 18.211-5.2033 24.455-15.61 5.4114-8.9496 8.1171-18.732 8.1171-29.45 0.10406-8.1171-1.665-14.881-4.9951-20.501zm-13.112 28.826c-1.4569 6.8683-4.0585 11.967-7.9089 15.402-3.0179 2.7057-5.8276 3.8504-8.4293 3.3301-2.4976-0.52033-4.5789-2.7057-6.1398-6.7642-1.2488-3.226-1.8732-6.452-1.8732-9.4699 0-2.6016 0.20813-5.2033 0.72846-7.5967 0.93659-4.2667 2.7057-8.4293 5.5154-12.384 3.4341-5.0992 7.0764-7.1805 10.823-6.452 2.4976 0.52033 4.5789 2.7057 6.1398 6.7642 1.2488 3.226 1.8732 6.452 1.8732 9.4699 0 2.7057-0.20813 5.3073-0.72846 7.7008zm-52.033-28.826c-3.7463-6.5561-9.3659-10.511-16.65-12.072-1.9772-0.41626-3.8504-0.62439-5.6195-0.62439-9.9902 0-18.107 5.2033-24.455 15.61-5.4114 8.8455-8.1171 18.628-8.1171 29.346 0 8.013 1.665 14.881 4.9951 20.605 3.7463 6.5561 9.2618 10.511 16.65 12.072 1.9772 0.41626 3.8504 0.62439 5.6195 0.62439 10.094 0 18.211-5.2033 24.455-15.61 5.4114-8.9496 8.1171-18.732 8.1171-29.45 0-8.1171-1.665-14.881-4.9951-20.501zm-13.216 28.826c-1.4569 6.8683-4.0585 11.967-7.9089 15.402-3.0179 2.7057-5.8276 3.8504-8.4293 3.3301-2.4976-0.52033-4.5789-2.7057-6.1398-6.7642-1.2488-3.226-1.8732-6.452-1.8732-9.4699 0-2.6016 0.20813-5.2033 0.72846-7.5967 0.93658-4.2667 2.7057-8.4293 5.5154-12.384 3.4341-5.0992 7.0764-7.1805 10.823-6.452 2.4976 0.52033 4.5789 2.7057 6.1398 6.7642 1.2488 3.226 1.8732 6.452 1.8732 9.4699 0.10406 2.7057-0.20813 5.3073-0.72846 7.7008z" fill="#fff"/>
    </symbol>
    <symbol id="wcpos-logo" viewBox="0 0 1260 1260" preserveAspectRatio="xMidYMid">
      <g>
        <path fill="#CD2C24" d="M0,90C0,30,30,0,90,0h90v270c0,49.7-40.3,90-90,90S0,319.7,0,270V90z M360,0h180v270c0,49.7-40.3,90-90,90
          s-90-40.3-90-90V0z M720,0h180v270c0,49.7-40.3,90-90,90s-90-40.3-90-90V0z M1080,0h90c60,0,90,30,90,90v180c0,49.7-40.3,90-90,90
          s-90-40.3-90-90V0z"/>
      </g>
    <g>
	    <path fill="#F5E5C0" d="M180,0h180v270c0,49.7-40.3,90-90,90s-90-40.3-90-90V0z M540,0h180v270c0,49.7-40.3,90-90,90s-90-40.3-90-90V0
		z M900,0h180v270c0,49.7-40.3,90-90,90c-49.7,0-90-40.3-90-90V0z"/>
    </g>
      <path fill="#323A46" d="M1170,360.5c-49.7,0-90-40.3-90-90c0,49.7-40.3,90-90,90c-49.7,0-90-40.3-90-90c0,49.7-40.3,90-90,90
    s-90-40.3-90-90c0,49.7-40.3,90-90,90s-90-40.3-90-90c0,49.7-40.3,90-90,90s-90-40.3-90-90c0,49.7-40.3,90-90,90s-90-40.3-90-90
    c0,49.7-40.3,90-90,90s-90-40.3-90-90v990l360-270h810c60,0,90-30,90-90v-630C1260,320.2,1219.7,360.5,1170,360.5z M260.5,821
    c-39.3,0-75.3-14.4-103-38.3V924c0,15.2-12.3,27.5-27.5,27.5s-27.5-12.3-27.5-27.5V532.5c0-15.2,12.3-27.5,27.5-27.5
    s27.5,12.3,27.5,27.5v10.8c27.7-23.8,63.7-38.3,103-38.3c87.1,0,158,70.9,158,158C418.5,750.1,347.6,821,260.5,821z M630,821
    c-87.4,0-158.5-71.1-158.5-158.5c0-87.4,71.1-158.5,158.5-158.5c87.4,0,158.5,71.1,158.5,158.5C788.5,749.9,717.4,821,630,821z
    M914.9,621.1c22.2,11.1,58.8,13.4,85.6,13.4c48.3,0,84.3,6.3,110.2,19.2c30.8,15.4,47.8,41.5,47.8,73.5s-17,58.1-47.8,73.5
    c-25.9,12.9-61.9,19.2-110.2,19.2c-53.2,0-101.8-13-144.6-38.7c-13-7.8-17.2-24.7-9.4-37.7c7.8-13,24.7-17.2,37.7-9.4
    c34.2,20.5,73.3,30.9,116.4,30.9c26.8,0,63.4-2.3,85.6-13.4c15.3-7.7,17.4-16.2,17.4-24.3s-2.1-16.7-17.4-24.3
    c-22.2-11.1-58.8-13.4-85.6-13.4c-48.3,0-84.3-6.3-110.2-19.2c-30.8-15.4-47.8-41.5-47.8-73.5s17-58.1,47.8-73.5
    c25.9-12.9,61.9-19.2,110.2-19.2c53.2,0,101.8,13,144.6,38.7c13,7.8,17.2,24.7,9.4,37.7s-24.7,17.2-37.7,9.4
    c-34.2-20.5-73.3-30.9-116.4-30.9c-26.8,0-63.4,2.3-85.6,13.4c-15.3,7.7-17.4,16.2-17.4,24.3S899.6,613.4,914.9,621.1z"/>
      <circle fill="#323A46" cx="260.5" cy="662.5" r="103"/>
      <circle fill="#323A46" cx="630" cy="662" r="103.5"/>
    </symbol>
  </defs>
  <g>
    <rect ry="3" rx="3" height="65" width="183" stroke="#666" fill="#eaeaea" y="404" x="395.5"></rect>
    <text text-anchor="middle" font-size="16px" font-weight="400" alignment-baseline="central" dominant-baseline="hanging" y="440" x="487" fill="#333" style="font: var(--ifm-font-family-base)">
      <tspan dy="0" x="487">WooCommerce服务器</tspan>
    </text>
    <use xlink:href="#woocommerce-logo" x="470" y="415" width="30" height="18"></use>
  </g>
  <g>
    <rect ry="3" rx="3" height="65" width="150" stroke="#666" fill="#eaeaea" y="404" x="0"></rect>
    <text text-anchor="middle" font-size="16px" font-weight="400" alignment-baseline="central" dominant-baseline="hanging" y="440" x="75" fill="#333">
      <tspan dy="0" x="75">JavaScript客户端</tspan>
    </text>
    <use xlink:href="#wcpos-logo" x="65" y="413" width="20" height="20"></use>
  </g>
  <g>
    <line stroke="#999" stroke-width="0.5px" y2="404" x2="487" y1="5" x1="487"></line>
    <g>
      <rect ry="3" rx="3" height="65" width="183" stroke="#666" fill="#eaeaea" y="0" x="395.5"></rect>
      <text text-anchor="middle" font-size="16px" font-weight="400" alignment-baseline="central" dominant-baseline="hanging" y="37" x="487" fill="#333">
        <tspan dy="0" x="487">WooCommerce服务器</tspan>
      </text>
      <use xlink:href="#woocommerce-logo" x="470" y="12" width="30" height="18"></use>
    </g>
  </g>
  <g>
    <line stroke="#999" stroke-width="0.5px" y2="404" x2="75" y1="5" x1="75"></line>
    <g>
      <rect ry="3" rx="3" height="65" width="150" stroke="#666" fill="#eaeaea" y="0" x="0"></rect>
      <text text-anchor="middle" font-size="16px" font-weight="400" alignment-baseline="central" dominant-baseline="hanging" y="37" x="75" fill="#333">
        <tspan dy="0" x="75">JavaScript客户端</tspan>
      </text>
      <use xlink:href="#wcpos-logo" x="65" y="10" width="20" height="20"></use>
    </g>
  </g>
  <g>
    <rect ry="0" rx="0" height="39" width="362" stroke="#E6A700" fill="#FFF8E6" y="249" x="100"></rect>
    <text font-size="16px" font-weight="400" dy="1em" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="254" x="281" fill="#333">
      <tspan x="281">数据可用于快速搜索和离线使用</tspan>
    </text>
  </g>
  <text font-size="16px" font-weight="400" dy="1em" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="80" x="280" fill="#333">请求商店数据（产品，客户等）</text>
  <line style="fill: none;" marker-end="url(#arrowhead)" stroke="#333" stroke-width="2" y2="113" x2="483" y1="113" x1="76"></line>
  <text font-size="16px" font-weight="400" dy="1em" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="128" x="283" fill="#333">数据响应</text>
  <line style="stroke-dasharray: 3, 3; fill: none;" marker-end="url(#arrowhead)" stroke="#333" stroke-width="2" y2="161" x2="79" y1="161" x1="486"></line>
  <text font-size="16px" font-weight="400" dy="1em" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="176" x="76" fill="#333">本地存储数据</text>
  <path style="fill: none;" marker-end="url(#arrowhead)" stroke="#333" stroke-width="2" d="M 76,209 C 136,199 136,239 76,229"></path>
  <text font-size="16px" font-weight="400" dy="1em" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="303" x="280" fill="#333">发送更新或新数据</text>
  <line style="fill: none;" marker-end="url(#arrowhead)" stroke="#333" stroke-width="2" y2="336" x2="483" y1="336" x1="76"></line>
  <text font-size="16px" font-weight="400" dy="1em" alignment-baseline="middle" dominant-baseline="middle" text-anchor="middle" y="351" x="283" fill="#333">确认响应</text>
  <line style="stroke-dasharray: 3, 3; fill: none;" marker-end="url(#arrowhead)" stroke="#333" stroke-width="2" y2="384" x2="79" y1="384" x1="486"></line>
</svg>
)

## 数据同步[​](#data-synchronization "直接链接到 数据同步")

数据是通过 [WooCommerce REST API](https://woocommerce.github.io/woocommerce-rest-api-docs/) 从 WooCommerce 中获取的。这意味着 POS 必须下载每个产品、变体、产品类别、客户、税率等，以便将它们存储在本地。

虽然这最初可能会耗时，但一旦下载，它们可以立即使用，而无需不断从服务器获取。

### 同步内容[​](#what-gets-synced "直接链接到 同步内容")

* 产品和变体
* 产品类别和标签
* 客户
* 税率和税类
* 支付网关（用于结账）
* 订单（用于 Pro 中的订单历史）

### 同步策略[​](#sync-strategy "直接链接到 同步策略")

WCPOS 使用增量同步策略：

1. **初始同步：** 在首次加载时下载所有数据
2. **增量更新：** 仅获取自上次同步以来的更改
3. **后台同步：** 定期检查更新
4. **手动同步：** 用户可以随时触发同步

## 架构优缺点[​](#architecture-pros-and-cons "直接链接到 架构优缺点")

| 优点 😊                                       | 缺点 😟                                 |
| --------------------------------------------- | --------------------------------------- |
| 本地数据搜索瞬间完成                          | 保持数据同步具有挑战性                  |
| 缓存数据可在离线时使用                        | 受限于 WooCommerce REST API             |
| 能够为桌面、iOS 和 Android 创建更好的原生应用 | WordPress 主题和钩子无法自定义 POS 应用 |

## 本地数据库[​](#local-database "直接链接到 本地数据库")

JavaScript 客户端将数据存储在 IndexedDB 中，这是一个基于浏览器的数据库。它提供：

* **持久性：** 数据在浏览器重启后仍然存在
* **性能：** 迅速查询而无网络延迟
* **离线浏览：** 缓存数据在没有互联网的情况下仍然可访问

## 结账架构[​](#checkout-architecture "直接链接到 结账架构")

结账过程使用一个 iframe/webview 加载 WooCommerce 订单支付页面。这种方法：

* **利用现有支付网关：** 任何 WooCommerce 支付网关都可以在 POS 中工作
* **保持安全性：** 支付处理通过 WooCommerce 的安全基础设施进行
* **减少复杂性：** 无需重新实现支付网关集成

## API 扩展[​](#api-extensions "直接链接到 API 扩展")

PHP 插件通过附加端点扩展了 WooCommerce REST API，以实现 POS 特定功能。有关详细信息，请参见 [WooCommerce REST API](/zh-CN/reference/wc-rest-api.md)。