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@ioa/rdb

v9.9.5

Published

数据库查询通用rest api组件

Downloads

16

Readme

@ioa/rdb

路由模型组件,集成模型、字段、数据类型校验的REST API。

在api开发过程中,经常需要向客户端提供一些纯数据库操作的CRUD接口,这些接口的共同特征是除访问权限外的其它业务逻辑几乎是相同的。为了避免编写重复的接口代码,减少接口数量,@ioa/rdb通过在数据模型与用户api之间加入权限控制中间件,实现安全、快捷的抽象api。

api设计借鉴于postgrest简约的url查询表达式,@ioa/rdb废除了原来臃肿的json方案,使用更为扁平化、更简洁、更易于读写的函数表达式替换。

查询示例

select

http://localhost:80/user?select=title,age,name

select! 反选

http://localhost:80/user?select!=title,age,name

where

http://localhost:80/user?where=name.eq(Wilburn);email.eq([email protected])|age.eq(94580)

逻辑分隔符

“;”字段分隔符

用于隔离多个字段,字段之间是and关系

where=name.eq(Wilburn);email.eq([email protected])

“|”字段分隔符

竖线表示逻辑or,匹配多个条件中的一个即可

name.eq(a)|name.eq(b)

ormv库运算符

@ioa/rdb支持ormv中的所有运算符

参考链接:https://github.com/xiangle/ormv

编码转换

由于url参数存在保留关键字限制,当输入参数值中包含类似于&=()的保留关键字时需要使用encodeURIComponent()进行编码转换

(:%28

):%29

示例

// 错误,赋值中包含非法的保留字()
http://localhost:80/user?where=phone.eq((559)-150-5961)

// 正确,()被转换为对应的url编码
http://localhost:80/user?where=phone.eq(%28559%29-150-5961)

query查询参数

支持Ormv中的所有运算符和查询语句。除此之外@ioa/rdb还扩展了一部分专用选项,用于简化查询语句。以下凡标注为“扩展参数”的选项均为@ioa/rdb私有。

通用参数

  • where 逻辑条件过滤表达式

查列表可用参数

  • select 选择字段,select=name,title,email

  • select! 反选字段,select!=uid,password

  • order 限定排序条件,order=name.desc;title.desc;

  • page 限定当前第几页

  • limit 限制单页最大条数

  • count 是否显示总量

查详情可用参数

  • select 选择字段,select=name,title,email

  • select! 反选字段,select!=uid,password