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@cherry0311/ren-plugin

v4.0.0

Published

validate plugin for egg

Readme

egg-validate

NPM version build status Test coverage David deps Known Vulnerabilities npm download

基于 parameter 提供数据校验方法。

安装

$ npm i egg-validate --save

配置

// config/plugin.js
exports.validate = {
  enable: true,
  package: 'egg-validate',
};

egg-validate 支持 parameter 的所有配置项,查看 parameter 文档 获取配置项的更多信息。

// config/config.default.js
exports.validate = {
  // convert: false,
  // validateRoot: false,
};

使用方法

  • ctx.validate(rule[, data])

默认验证请求 Body

const createRule = {
  name: 'string',
  age: 'int',
  gender: ['male', 'female', 'unknow'],
};

exports.create = function* () {
  // 校验失败自动返回 422 响应
  this.validate(createRule);
  // 可以传递自己处理过的数据,默认使用 this.request.body
  // this.validate(createRule[, your_data]);
  // 校验通过
  this.body = this.request.body;
};

如果验证失败,会返回:

HTTP/1.1 422 Unprocessable Entity

{
  "message": "Validation Failed",
  "errors": [
    {
      "field": "username",
      "code": "missing_field",
      "message": "username required"
    }
  ]
}

addRule

  • app.validator.addRule(rule, checker)

validate 除了在 context 上增加了 validate 方法外,还在 application 上增加了一个 validator 对象, 可以通过 app.validator.addRule(rule, checker) 增加自定义的检查类型。

  • app.js
module.exports = app => {
  app.validator.addRule('json', (rule, value) => {
    try {
      JSON.parse(value);
    } catch (err) {
      return 'must be json string';
    }
  });
};
  • 然后在 controller 中使用
const createRule = {
  username: {
    type: 'email',
  },
  password: {
    type: 'password',
    compare: 're-password'
  },
  addition: {
    required: false,
    type: 'json' // 自定义的 json 类型
  },
};

exports.create = function* () {
  this.validate(createRule);
  this.body = this.request.body;
};