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@comely-fox/express-joi

v1.0.1

Published

基于joi的express的一个处理请求提交参数或表单数据进行的验证处理的中间件

Downloads

10

Readme

用于验证 params、body、query 的客户端请求字段

安装

npm i @comely-fox/express-joi

1. 导入 joi @fox/express-joi

const Joi = require('joi')
const expressJoi = require('@fox/express-joi)

2. 定义 schema 规则

const schemas = {
    params:{
      username: joi.string().min(2).max(12).alphanum().required()
      password: joi.string().pattern(/^[a-zA-Z0-9_]{6,16}$/).required()
    }
}

joi 规则查看:joi

3. 在路由中使用 express-joi 中间件

app.get('/test', expressJoi(schemas), function(req,res){ // ... })

4. 定义一个错误处理中间件,用于捕获验证失败后的错误

app.use(function(err, req, res, next) {

  if(err instanceOf Joi.ValidationError){

    res.send({
      status: 400,
      statusText: err.message
    })
  }

  // 其他未知错误

  res.send({
    status: 500,
    statusText: '未知错误'
  })

})

许可

ISC