TypeScript FileBox.fromStream方法代碼示例

  public async contactAvatar(contactId: string, file?: FileBox): Promise<void | FileBox> {
    log.verbose('PuppetWechat4u', 'contactAvatar(%s)', contactId)

    if (file) {
      throw new Error('not supported')
    }

    const rawPayload = await this.contactRawPayload(contactId)

    const res = await this.wechat4u.getHeadImg(rawPayload.HeadImgUrl)
    /**
     * 如何獲取聯係人頭像
     */
    return FileBox.fromStream(
      res.data,
      `${contactId}.jpg`, // FIXME
    )
  }

.on('message', async msg => {
  try {
    console.log(msg.toString())

    if (/^(ding|ping|bing|code)$/i.test(msg.text()) /*&& !msg.self()*/) {
      /**
       * 1. reply 'dong'
       */
      log.info('Bot', 'REPLY: dong')
      await msg.say('dong')

      const joinWechaty =  `Join Wechaty Developers' Community\n\n` +
                            `Wechaty is used in many ChatBot projects by hundreds of developers.\n\n` +
                            `If you want to talk with other developers, just scan the following QR Code in WeChat with secret code: wechaty,\n\n` +
                            `you can join our Wechaty Developers' Home at once`
      await msg.say(joinWechaty)

      /**
       * 2. reply qrcode image
       */
      // const fileBox = FileBox.packLocal(BOT_QR_CODE_IMAGE_FILE)
      const fileBox = FileBox.fromStream(
        fs.createReadStream(BOT_QR_CODE_IMAGE_FILE),
        BOT_QR_CODE_IMAGE_FILE,
      )

      log.info('Bot', 'REPLY: %s', fileBox.toString())
      await msg.say(fileBox)

      /**
       * 3. reply 'scan now!'
       */
      await msg.say('Scan now, because other Wechaty developers want to talk with you too!\n\n(secret code: wechaty)')

    }
  } catch (e) {
    log.error('Bot', 'on(message) exception: %s' , e)
    console.error(e)
  }
})

  /**
   *
   * Message
   *
   */
  public async messageFile(id: string): Promise<FileBox> {
    log.verbose('PuppetWechat4u', 'messageFile(%s)', id)

    const payload = await this.messagePayload(id)
    const rawPayload = await this.messageRawPayload(id)

    const filename = payload.filename || 'unknown.txt'

    /**
     * 判斷消息類型
     */
    switch (rawPayload.MsgType) {
      case this.wechat4u.CONF.MSGTYPE_TEXT:
        /**
         * 文本消息
         */
        throw new Error('msg type is text')

      case this.wechat4u.CONF.MSGTYPE_EMOTICON:
        /**
         * 表情消息
         */
      case this.wechat4u.CONF.MSGTYPE_IMAGE:
        /**
         * 圖片消息
         */
        // console.log('圖片消息，保存到本地')
        return FileBox.fromStream(
          (await this.wechat4u.getMsgImg(rawPayload.MsgId)).data,
          filename,
        )

      case this.wechat4u.CONF.MSGTYPE_VOICE:
        /**
         * 語音消息
         */
        // console.log('語音消息，保存到本地')
        return FileBox.fromStream(
          (await this.wechat4u.getVoice(rawPayload.MsgId)).data,
          filename,
        )

      case this.wechat4u.CONF.MSGTYPE_VIDEO:
      case this.wechat4u.CONF.MSGTYPE_MICROVIDEO:
        /**
         * 視頻消息
         */
        // console.log('視頻消息，保存到本地')
        return FileBox.fromStream(
          (await this.wechat4u.getVideo(rawPayload.MsgId)).data,
          filename,
        )

      case this.wechat4u.CONF.MSGTYPE_APP:
        if (rawPayload.AppMsgType === 6) {
          /**
           * 文件消息
           */
          // console.log('文件消息，保存到本地')
          return FileBox.fromStream(
            (await this.wechat4u.getDoc(rawPayload.FromUserName, rawPayload.MediaId, rawPayload.FileName)).data,
            filename,
          )
        }
        break
      default:
        break
    }

    throw new Error('unsupported message. id: ' + id)
  }