# express-md

**Repository Path**: aervin/express-md

## Basic Information

- **Project Name**: express-md
- **Description**: md server, express-generator project.
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2023-07-24
- **Last Updated**: 2023-07-24

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

Markdown 服务器
==

> `*.md` 源文件本地托管服务。
> 
> 项目由 `express-generator` 脚手架搭建。

## 1. 创建项目

```bash
# 全局安装
npm i -g express-generator

# 或者
# npx安装
npx express-generator

# 命令使用
express -h

# 创建不带视图引擎项目
express --no-view <project_name>

# 默认运行命令
SET DEBUG=<project_name>:* & npm start
```

## 2. 安装依赖包

```bash
# npm
npm i
```

## 3. 热更新

```bash
# 全局安装 nodemon
npm i -g nodemon
```

## 4. 配置 `package.json`

```json
{
  "scripts": {
    "start": "node ./bin/www",
    "dev": "nodemon ./bin/www"
  },
}
```

## 5. 托管静态文件

```bash
mkdir pages.md
cd pages.md
git clone tldr.git
```

```js
app.use(express.static(path.join(__dirname, 'pages.md')))
```

## 6. 运行

```bash
# npm
npm run dev
```

## 7. 配置跨域

```js
// app.js
app.use((req, res, next) => {
  res.set({
    'Access-Control-Allow-Origin': '*',
    'Access-Control-Allow-Credentials': true,
    'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS',
    'Access-Control-Allow-Headers': 'Content-Type'
  })
  if (req.method === 'OPTIONS') {
    return res.sendStatus(200)
  }
  res._err = function (err, code = 1) {
    res.json({
      code: code,
      msg: err instanceof Error ? err.message : err
    })
  }
  res._ok = function (data, msg = 'success', code = 0) {
    res.json({
      code: code,
      msg: msg,
      data: data
    })
  }
  next()
})
```