parse-string

Parse the string into a Map.

Installation

$ npm install parse-string
#
$ yarn add parse-string

Features

• parse string into Map
• format data
• filter and verify data.
• verify signature.

API

toValue (type: 'string' | 'number' | 'date' | 'map' = 'string'): (value: any) => any

Convert specified type value.

• type - target type
• value - value of need convert

formatData (formats?: ParseData.format | ParseData.format[], customize?: Record<string, Function>): (value: any) => any

Format Data.

• formats - formatting options
• customize - map of custom function
• value - value of need format

parseData (options: ParseData.options, customize?: Record<string, Function>): (data: string) => Record<string, any>

Parse the string to the specified result.

• options - parsing options
• customize - map of custom function
• data - data of need parse

parseBody (options: ParseData.parse[], customize?: Record<string, Function>): (msgbody: Record<string, any>) => Record<string, any>

Parse the msbody to the specified result.

• options - parsing options
• customize - map of custom function
• msbody - msbody of need parse

filterData (options: FilterData.options[], customize?: Record<string, Function>): (data: Record<string, any>) => Record<string, any>

Filter and verify data.

• options - filter options
• customize - map of custom function
• data - data of need filter

validSign (options: string, sign: string = 'sign'): (data: Record<string, any>) => boolean

Verify signature.

• options - style of signature
• sign - feild of signature
• data - data of submit

Usages

Example: Parse string

import { parseData } from 'parse-string'

const customize = {
  add: (a, b) => a + b
}

const options = {
  separator: /\;/,
  collection: [
    {
      key: 'date',
      type: 'string',
      format: [
        {
          type: 'string',
          regexp: /^(\d{4})(\d{2})(\d{2})$/,
          substr: '$1-$2-$3'
        },
        {
          type: 'date'
        }
      ]
    },
    {
      key: 'amount',
      type: 'number'
    },
    {
      key: 'user',
      type: 'map'
    },
    {
      key: 'username',
      result: {
        defaultValue: '$__user'
      },
      format: {
        type: 'map',
        maps: 'username'
      }
    },
    {
      key: 'group',
      result: {
        defaultValue: '$__user'
      },
      format: {
        type: 'map',
        maps: 'group.name'
      }
    },
    {
      key: 'level',
      result: {
        defaultValue: '$__user'
      },
      format: {
        type: 'map',
        maps: 'group.level'
      }
    },
    {
      key: 'money1',
      result: {
        defaultValue: '$__amount',
        formula: {
          exec: (a, b) => a + b,
          opts: [ '$__amount', '$__level' ]
        }
      }
    },
    {
      key: 'money2',
      result: {
        defaultValue: '$__amount',
        formula: {
          exec: 'add',
          opts: [ '$__amount', '$__level' ]
        }
      }
    }
  ],
  omits: [ 'user' ]
}

const data = '20201027;39554;{username:\'thondery\',group:{name:\'管理员\',level:9999}}'

parseData(options, customize)(data)
// { 
//   date: 2020-10-27T00:00:00.000Z,
//   amount: 39554,
//   username: 'thondery',
//   group: '管理员',
//   level: 9999,
//   money1: 49553,
//   money2: 49553 
// }

Example: Filter and verify data

import { filterData, validSign } from 'parse-string'

const customize = {
  isPassword: value => /^(?=.*[A-Za-z])[A-Za-z0-9$@$!%*#?&]/.test(value)
}

const options = [
  {
    key: 'username',
    type: 'string',
    rules: [
      { required: true, message: '用户名不能为空' },
      { min: 4, max: 12, message: '用户名长度不能小于4或大于12（字符）' },
      { pattern: '^[a-zA-Z]{1}[a-zA-Z0-9\_\-]', message: '用户名格式错误' }
    ]
  },
  {
    key: 'password',
    type: 'string',
    rules: [
      { required: true, message: '密码不能为空' },
      { min: 6, max: 15, message: '密码长度不能小于6或大于15（字符）' },
      { validator: 'isPassword', message: '密码格式错误' }
    ]
  },
  {
    key: 'items',
    type: 'string[]',
    defaultValue: []
  },
  {
    key: 'sign',
    type: 'string',
    md5: '${password}${username}'
  }
]

const data = { username: 'thondery', password: 'a123456', items: '1001,1002,1003' }

try {
  let result = filterData(options, customize)(data)
  // {
  //   username: 'thondery', 
  //   password: 'a123456', 
  //   items: ['1001', '1002', '1003'],
  //   sign: '61a0375131b33b72b56e4e244d0b2f29'
  // }
} catch (error) {
  console.error(error.message)
}

validSign('${password}${username}', 'sign')({ username: 'thondery', password: 'a123456', sign: '61a0375131b33b72b56e4e244d0b2f29' })
// true or false

License

this repo is released under the MIT License.