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coa-qr

v1.0.2

Published

qr component for coa

Downloads

6

Readme

coa-qr

GitHub license npm version npm downloads PRs Welcome

一个超简单的Qr生成库 for Node.js

基于 qrcode 做简单封装

特点

根据日常实际项目使用情况:

  • 优化了参数名称,并优化了默认值,满足绝大多数使用场景
  • 统一了异步表现形式,全部返回 Promise
  • 内置类型引用,无需额外查看文档,开箱即用,IDE友好

快速开始

安装

yarn add coa-qr

直接使用

import { qr } from 'coa-qr'

// 配置
const option = {
  width: 1000,    //宽度,默认为1000
  margin: 0,      //边距,默认为0
  color: '#000000ff',      //前景颜色,默认为黑色
  background: '#ffffff00', //背景颜色,默认为白色
  level: 'Q'      //级别,可选 L M Q H,默认为 Q
}

// 生成一个二维码存储成文件到相应路径
await qr.toFile('/path/qr.png', '这是二维码的内容', option)

// 生成一个二维码并返回Buffer
await qr.toBuffer('这是二维码的内容', option)  // 返回一个Buffer

自定义实例

import { CoaQr } from 'coa-qr'

// 配置
const option = {
  width: 1000,    //宽度,默认为1000
  margin: 0,      //边距,默认为0
  color: '#000000ff',      //前景颜色,默认为黑色
  background: '#ffffff00', //背景颜色,默认为白色
  level: 'Q'      //级别,可选 L M Q H,默认为 Q
}

// 创建一个自定义的实例
const myQr = new CoaQr(option)

// 利用自定义实例生成一个二维码存储成文件到相应路径
await myQr.toFile('/path/qr.png', '这是二维码的内容')

// 利用自定义实例生成一个二维码并返回Buffer
await myQr.toBuffer('这是二维码的内容')  // 返回一个Buffer