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wxcloudrun-koa

GitHub license GitHub package.json dependency version (prod) GitHub package.json dependency version (prod)

微信云托管 Node.js Koa 框架模版,实现简单的计数器读写接口,使用云托管 MySQL 读写、记录计数值。

快速开始

前往 微信云托管快速开始页面,选择相应语言的模板,根据引导完成部署。

本地调试

下载代码在本地调试,请参考微信云托管本地调试指南

实时开发

代码变动时,不需要重新构建和启动容器,即可查看变动后的效果。请参考微信云托管实时开发指南

Dockerfile最佳实践

请参考如何提高项目构建效率

项目结构说明

.
├── Dockerfile
├── README.md
├── container.config.json  
├── db.js
├── index.js
├── index.html
├── package.json
  • index.js:项目入口,实现主要的读写 API
  • db.js:数据库相关实现,使用 sequelize 作为 ORM
  • index.html:首页代码
  • package.json:Node.js 项目定义文件
  • container.config.json:模板部署「服务设置」初始化配置(二开请忽略)
  • Dockerfile:容器配置文件

服务 API 文档

GET /api/count

获取当前计数

请求参数

响应结果

  • code:错误码
  • data:当前计数值
响应结果示例
{
  "code": 0,
  "data": 42
}

调用示例

curl https://<云托管服务域名>/api/count

POST /api/count

更新计数,自增或者清零

请求参数

  • actionstring 类型,枚举值
    • 等于 "inc" 时,表示计数加一
    • 等于 "clear" 时,表示计数重置(清零)
请求参数示例
{
  "action": "inc"
}

响应结果

  • code:错误码
  • data:当前计数值
响应结果示例
{
  "code": 0,
  "data": 42
}

调用示例

curl -X POST -H 'content-type: application/json' -d '{"action": "inc"}' https://<云托管服务域名>/api/count

使用注意

如果不是通过微信云托管控制台部署模板代码,而是自行复制/下载模板代码后,手动新建一个服务并部署,需要在「服务设置」中补全以下环境变量,才可正常使用,否则会引发无法连接数据库,进而导致部署失败。

  • MYSQL_ADDRESS
  • MYSQL_PASSWORD
  • MYSQL_USERNAME 以上三个变量的值请按实际情况填写。如果使用云托管内MySQL,可以在控制台MySQL页面获取相关信息。

License

MIT

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