<p align="center">
<a href="http://nestjs.com/" target="blank"><img src="https://nestjs.com/img/logo_text.svg" width="320" alt="Nest Logo" /></a>
</p>
## Description
[Nest](https://github.com/nestjs/nest) framework TypeScript starter repository.
## Install
```bash
$ npm install
```
## Running the app
```bash
# development
$ npm run start
# watch mode
$ npm run start:dev
# production mode
$ npm run start:prod
```
## License
Nest is [MIT licensed](LICENSE).
## Learn
> 客户端请求 ---> 中间件 middleware ---> 守卫 guard ---> 拦截器之前 Interceptors ---> 管道 pipes ---> 控制器处理并响应 ---> 拦截器之后 ---> 过滤器
- 接收客户端发起请求
- 中间件去做请求处理,比如helmet,csrf,rate limiting,compression等等常用的处理请求的中间件。
- 守卫就验证该用户的身份,如果没有权限或者没有登录,就直接抛出异常,最适合做权限管理。
- 拦截器根据作者解释,拦截器之前不能修改请求信息。只能获取请求信息。拦截器是在响应之前,响应之后执行。它常用功能就是打印响应日志,缓存数据,转化响应数据,响应超时判断。
- 管道做请求的 数据验证和转化 ,如果验证失败抛出异常。
- 这里处理响应请求的业务,俗称controller,处理请求和服务桥梁,直接响应服务处理结果。
- 拦截器之后只能修改响应body数据。
- 最后走过滤器:如果前面任何位置发生抛出异常操作,都会直接走它
> 核心模块
- @nestjs/common 提供很多装饰器,log服务等
- @nestjs/core 核心模块处理底层框架兼容
- @nestjs/microservices 微服务支持
- @nestjs/testing 测试套件
- @nestjs/websockets websocket支持
## 目录
- main.ts 入口
- app.service.ts APP服务(选择)
- app.module.ts APP模块(根模块,必须)
- app.controller.ts APP控制器(选择)
- config 配置模块
- core 核心模块(申明过滤器、管道、拦截器、守卫、中间件、全局模块)
- feature 特性模块(主要业务模块)
- shared 共享模块(共享mongodb、redis封装服务、通用服务)
- tools 工具(提供一些小工具函数)
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nestjs+mysql(redis)+react+typescript+swagger。后台管理系统。nestjs学习.zip
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共45个文件
ts:31个
json:7个
prettierrc:1个
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