使用Node.js怎么压缩图片？方法介绍

export const upImageToQiniu = async (

  loaclFile: string,

  cb: { (res: any): void; (arg0: any): void },

  upConfig: QiNiuUpConfig

) => {

  const config = new qiniu.conf.Config()

  const formUploader = new qiniu.form_up.FormUploader(config)

  const putExtra = new qiniu.form_up.PutExtra()

  const token = getToken(upConfig.accessKey, upConfig.secretKey, upConfig.scope)

  let gzipImage

  if (upConfig.gzip) {

    gzipImage = await imageGzip(loaclFile)

  }

  // 获取当前时间戳

  var key = new Date().getTime()

  // 上传调用方法

  const uploadFnName = gzipImage ? 'putStream' : 'putFile'

  // 上传内容

  const uploadItem = gzipImage ? bufferToStream(gzipImage) : loaclFile

  // 七牛上传

  formUploader[uploadFnName](

    token,

    key,

    uploadItem,

    putExtra,

    function (respErr: any, respBody: any, respInfo: any) {

      if (respErr) {

        throw respErr

      }

      if (respInfo.statusCode === 200) {

        const url = upConfig.domain + '/' + respBody.key

        cb(url)

      }

    }

  )

}

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