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fib-storage

v0.0.6

Published

reademe

Downloads

5

Readme

fib-storage

支持 文件、图片的存储、上传、过滤器显示

Install

$ npm install fib-storage

Usage

  • 实例化

    • conn数据库对象方式

      const FibStorage = require("fib-storage");
      const Db = require("db");
      const conn = Db.open("sqlie:./test.db");
      const fibStorage = new FibStorage(conn);
    • pool对象方式

      const FibStorage = require("fib-storage");
      const Pool = require("fib-pool");
      const Db = require("db");
      
      const fibStorage = new FibStorage(Pool(function() {
          return Db.open("sqlite:./test.db")
      }));
  • 选项参数

    • imgMaxSize: Number, 图片最大上传尺寸 单位byte 默认10mb

Api

fibStorage.fileProc(req); //图片上传、下载(根据请求方式区分,POST为上传,GET为下载)

fibStorage.setup(); //初始化表

fibStorage.put(v, type, extend); //写入数据,返回文件的hash值

fibStorage.get(k); //获取文件

fibStorage.getInfo(k); //只获取文件信息

fibStorage.getValue(k); //只获取文件流数据

fibStorage.remove(k); //删除某行

url2storage

根据url过滤图片

  • 规则

    /hash value.filter.exten

    eg. /4adfd9f2c8e6a62efd36a4f2aceb3f57.g50.jpg

  • 支持列表(陆续更新)

    1. 原图(quality默认70)

      /${hash}.jpg
    2. 拼图 (多个hash以 , 隔开 最多支持4张)

      /${hash},${hash},${hash},${hash}.jpg
    3. q 图片质量(默认70)

      /${hash}.q80.jpg
    4. t 缩略图

      /${hash}.t50x50.jpg
    5. g 高斯模糊

      /${hash}.g50.jpg
    6. o 剪切

      /${hash}.o150x200.jpg
    7. pr 渐进式(扩展名为jpg时默认

      /${hash}.pr.jpg
    8. wb 由下往上画矩形

      /${hash}.wb200.jpg
    9. et 按a*b的范围,等比例缩略图

      /${hash}.et50x50.jpg