Close socket connection in request.js

I have a program that uses 'request' module to fetch html.

Is there a way to manually close socket connection after receiving a response other than abort as well as remove all listeners from that particular request instance.

The main problem is that, as the program continues making requests, the number of file descriptors and listeners, keeps growing, regardless of using abort() after the fetch is done.

Finally, the program ends after it reaches a maxListeners size, which is already set for 20000.

const request=require('request')

fetchUrl (params, tag, callBack) {

    this.url = params.url

    this.tag = tag

    let headers = { 'User-Agent': params.useragent }

    let options = { followRedirects: false, keepAlive: false, url: params.url, headers: headers, gzip: true, encoding: null }

    let proxy = 'None'

    let userAgent = params.useragent

    

    if (parseInt(ConfigHandler.getConfig().spfUseProxy) === 1) {

      if (parseInt(ConfigHandler.getConfig().spfUseHermesUserAgent) === 1) {

        userAgent = params.useragent + ' Hughes-PFB/' +

          params.agentid + '/' + params.tracetags

        headers['User-Agent'] = userAgent

        headers['Connection'] = 'Close'

      }

      

      proxy = 'http://' + ConfigHandler.getConfig().iosPrefetchProxyIp +

        ':' + ConfigHandler.getConfig().iosPrefetchProxyPort

      options['proxy'] = proxy

    }



    this.httpClient = request.get(options, (err, response, body) => {

      let result = {}

      if (!err) {

        this.response = response

        this.bodyLen = body.length

        logger.debug('%s Response info, %s', this.tag, this.resourceInfo())

        result = {

          statuscode: response.statusCode,

          headers: response.headers,

          body: body

        }

      } else {

        logger.error('%s, fetchUrl() failed! cause=%s, url=%s', JSON.stringify(this), err.message,

          this.url)

      }

      

      if (this.httpClient) {

           logger.debug('%s, fetchUrl() ending connection!', JSON.stringify(this.httpClient))

          this.httpClient.abort()

        }

        if (response && response.socket)         {

          response.socket.destroy()

        } 

      callBack(result, err)

    })

  }



  cancelFetch () {

    if (this.httpClient) {

      logger.debug('%s, Cancelling fetch for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

    }

  this.response.socket.removeAllListeners()

    }

  }



  close () {

    if (this.response && this.response.socket) {



      this.response.socket.destroy()

      //logger.debug('%s, close(), after socket.destroy(), statusTCP=%s', JSON.stringify(this.response), this.response.socket)

    }

    if (this.httpClient) {

      logger.debug('%s, Closing HTTP connection for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

      this.response = null

    }

  }

edited Nov 12 '18 at 16:42

asked Nov 12 '18 at 15:02

Igor Kamalov

428

share you code to better understand the problem

– front_end_dev
Nov 12 '18 at 15:09

I just added it, sorry.

– Igor Kamalov
Nov 12 '18 at 15:11

which module you are using for request

– front_end_dev
Nov 12 '18 at 15:21

Im using 'request.js'

– Igor Kamalov
Nov 12 '18 at 16:42

add a comment |

I have a program that uses 'request' module to fetch html.

Is there a way to manually close socket connection after receiving a response other than abort as well as remove all listeners from that particular request instance.

The main problem is that, as the program continues making requests, the number of file descriptors and listeners, keeps growing, regardless of using abort() after the fetch is done.

Finally, the program ends after it reaches a maxListeners size, which is already set for 20000.

const request=require('request')

fetchUrl (params, tag, callBack) {

    this.url = params.url

    this.tag = tag

    let headers = { 'User-Agent': params.useragent }

    let options = { followRedirects: false, keepAlive: false, url: params.url, headers: headers, gzip: true, encoding: null }

    let proxy = 'None'

    let userAgent = params.useragent

    

    if (parseInt(ConfigHandler.getConfig().spfUseProxy) === 1) {

      if (parseInt(ConfigHandler.getConfig().spfUseHermesUserAgent) === 1) {

        userAgent = params.useragent + ' Hughes-PFB/' +

          params.agentid + '/' + params.tracetags

        headers['User-Agent'] = userAgent

        headers['Connection'] = 'Close'

      }

      

      proxy = 'http://' + ConfigHandler.getConfig().iosPrefetchProxyIp +

        ':' + ConfigHandler.getConfig().iosPrefetchProxyPort

      options['proxy'] = proxy

    }



    this.httpClient = request.get(options, (err, response, body) => {

      let result = {}

      if (!err) {

        this.response = response

        this.bodyLen = body.length

        logger.debug('%s Response info, %s', this.tag, this.resourceInfo())

        result = {

          statuscode: response.statusCode,

          headers: response.headers,

          body: body

        }

      } else {

        logger.error('%s, fetchUrl() failed! cause=%s, url=%s', JSON.stringify(this), err.message,

          this.url)

      }

      

      if (this.httpClient) {

           logger.debug('%s, fetchUrl() ending connection!', JSON.stringify(this.httpClient))

          this.httpClient.abort()

        }

        if (response && response.socket)         {

          response.socket.destroy()

        } 

      callBack(result, err)

    })

  }



  cancelFetch () {

    if (this.httpClient) {

      logger.debug('%s, Cancelling fetch for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

    }

  this.response.socket.removeAllListeners()

    }

  }



  close () {

    if (this.response && this.response.socket) {



      this.response.socket.destroy()

      //logger.debug('%s, close(), after socket.destroy(), statusTCP=%s', JSON.stringify(this.response), this.response.socket)

    }

    if (this.httpClient) {

      logger.debug('%s, Closing HTTP connection for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

      this.response = null

    }

  }

edited Nov 12 '18 at 16:42

asked Nov 12 '18 at 15:02

Igor Kamalov

428

share you code to better understand the problem

– front_end_dev
Nov 12 '18 at 15:09

I just added it, sorry.

– Igor Kamalov
Nov 12 '18 at 15:11

which module you are using for request

– front_end_dev
Nov 12 '18 at 15:21

Im using 'request.js'

– Igor Kamalov
Nov 12 '18 at 16:42

add a comment |

I have a program that uses 'request' module to fetch html.

Is there a way to manually close socket connection after receiving a response other than abort as well as remove all listeners from that particular request instance.

The main problem is that, as the program continues making requests, the number of file descriptors and listeners, keeps growing, regardless of using abort() after the fetch is done.

Finally, the program ends after it reaches a maxListeners size, which is already set for 20000.

const request=require('request')

fetchUrl (params, tag, callBack) {

    this.url = params.url

    this.tag = tag

    let headers = { 'User-Agent': params.useragent }

    let options = { followRedirects: false, keepAlive: false, url: params.url, headers: headers, gzip: true, encoding: null }

    let proxy = 'None'

    let userAgent = params.useragent

    

    if (parseInt(ConfigHandler.getConfig().spfUseProxy) === 1) {

      if (parseInt(ConfigHandler.getConfig().spfUseHermesUserAgent) === 1) {

        userAgent = params.useragent + ' Hughes-PFB/' +

          params.agentid + '/' + params.tracetags

        headers['User-Agent'] = userAgent

        headers['Connection'] = 'Close'

      }

      

      proxy = 'http://' + ConfigHandler.getConfig().iosPrefetchProxyIp +

        ':' + ConfigHandler.getConfig().iosPrefetchProxyPort

      options['proxy'] = proxy

    }



    this.httpClient = request.get(options, (err, response, body) => {

      let result = {}

      if (!err) {

        this.response = response

        this.bodyLen = body.length

        logger.debug('%s Response info, %s', this.tag, this.resourceInfo())

        result = {

          statuscode: response.statusCode,

          headers: response.headers,

          body: body

        }

      } else {

        logger.error('%s, fetchUrl() failed! cause=%s, url=%s', JSON.stringify(this), err.message,

          this.url)

      }

      

      if (this.httpClient) {

           logger.debug('%s, fetchUrl() ending connection!', JSON.stringify(this.httpClient))

          this.httpClient.abort()

        }

        if (response && response.socket)         {

          response.socket.destroy()

        } 

      callBack(result, err)

    })

  }



  cancelFetch () {

    if (this.httpClient) {

      logger.debug('%s, Cancelling fetch for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

    }

  this.response.socket.removeAllListeners()

    }

  }



  close () {

    if (this.response && this.response.socket) {



      this.response.socket.destroy()

      //logger.debug('%s, close(), after socket.destroy(), statusTCP=%s', JSON.stringify(this.response), this.response.socket)

    }

    if (this.httpClient) {

      logger.debug('%s, Closing HTTP connection for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

      this.response = null

    }

  }

edited Nov 12 '18 at 16:42

asked Nov 12 '18 at 15:02

Igor Kamalov

428

I have a program that uses 'request' module to fetch html.

Is there a way to manually close socket connection after receiving a response other than abort as well as remove all listeners from that particular request instance.

The main problem is that, as the program continues making requests, the number of file descriptors and listeners, keeps growing, regardless of using abort() after the fetch is done.

Finally, the program ends after it reaches a maxListeners size, which is already set for 20000.

const request=require('request')

fetchUrl (params, tag, callBack) {

    this.url = params.url

    this.tag = tag

    let headers = { 'User-Agent': params.useragent }

    let options = { followRedirects: false, keepAlive: false, url: params.url, headers: headers, gzip: true, encoding: null }

    let proxy = 'None'

    let userAgent = params.useragent

    

    if (parseInt(ConfigHandler.getConfig().spfUseProxy) === 1) {

      if (parseInt(ConfigHandler.getConfig().spfUseHermesUserAgent) === 1) {

        userAgent = params.useragent + ' Hughes-PFB/' +

          params.agentid + '/' + params.tracetags

        headers['User-Agent'] = userAgent

        headers['Connection'] = 'Close'

      }

      

      proxy = 'http://' + ConfigHandler.getConfig().iosPrefetchProxyIp +

        ':' + ConfigHandler.getConfig().iosPrefetchProxyPort

      options['proxy'] = proxy

    }



    this.httpClient = request.get(options, (err, response, body) => {

      let result = {}

      if (!err) {

        this.response = response

        this.bodyLen = body.length

        logger.debug('%s Response info, %s', this.tag, this.resourceInfo())

        result = {

          statuscode: response.statusCode,

          headers: response.headers,

          body: body

        }

      } else {

        logger.error('%s, fetchUrl() failed! cause=%s, url=%s', JSON.stringify(this), err.message,

          this.url)

      }

      

      if (this.httpClient) {

           logger.debug('%s, fetchUrl() ending connection!', JSON.stringify(this.httpClient))

          this.httpClient.abort()

        }

        if (response && response.socket)         {

          response.socket.destroy()

        } 

      callBack(result, err)

    })

  }



  cancelFetch () {

    if (this.httpClient) {

      logger.debug('%s, Cancelling fetch for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

    }

  this.response.socket.removeAllListeners()

    }

  }



  close () {

    if (this.response && this.response.socket) {



      this.response.socket.destroy()

      //logger.debug('%s, close(), after socket.destroy(), statusTCP=%s', JSON.stringify(this.response), this.response.socket)

    }

    if (this.httpClient) {

      logger.debug('%s, Closing HTTP connection for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

      this.response = null

    }

  }

const request=require('request')

fetchUrl (params, tag, callBack) {

    this.url = params.url

    this.tag = tag

    let headers = { 'User-Agent': params.useragent }

    let options = { followRedirects: false, keepAlive: false, url: params.url, headers: headers, gzip: true, encoding: null }

    let proxy = 'None'

    let userAgent = params.useragent

    

    if (parseInt(ConfigHandler.getConfig().spfUseProxy) === 1) {

      if (parseInt(ConfigHandler.getConfig().spfUseHermesUserAgent) === 1) {

        userAgent = params.useragent + ' Hughes-PFB/' +

          params.agentid + '/' + params.tracetags

        headers['User-Agent'] = userAgent

        headers['Connection'] = 'Close'

      }

      

      proxy = 'http://' + ConfigHandler.getConfig().iosPrefetchProxyIp +

        ':' + ConfigHandler.getConfig().iosPrefetchProxyPort

      options['proxy'] = proxy

    }



    this.httpClient = request.get(options, (err, response, body) => {

      let result = {}

      if (!err) {

        this.response = response

        this.bodyLen = body.length

        logger.debug('%s Response info, %s', this.tag, this.resourceInfo())

        result = {

          statuscode: response.statusCode,

          headers: response.headers,

          body: body

        }

      } else {

        logger.error('%s, fetchUrl() failed! cause=%s, url=%s', JSON.stringify(this), err.message,

          this.url)

      }

      

      if (this.httpClient) {

           logger.debug('%s, fetchUrl() ending connection!', JSON.stringify(this.httpClient))

          this.httpClient.abort()

        }

        if (response && response.socket)         {

          response.socket.destroy()

        } 

      callBack(result, err)

    })

  }



  cancelFetch () {

    if (this.httpClient) {

      logger.debug('%s, Cancelling fetch for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

    }

  this.response.socket.removeAllListeners()

    }

  }



  close () {

    if (this.response && this.response.socket) {



      this.response.socket.destroy()

      //logger.debug('%s, close(), after socket.destroy(), statusTCP=%s', JSON.stringify(this.response), this.response.socket)

    }

    if (this.httpClient) {

      logger.debug('%s, Closing HTTP connection for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

      this.response = null

    }

  }

const request=require('request')

fetchUrl (params, tag, callBack) {

    this.url = params.url

    this.tag = tag

    let headers = { 'User-Agent': params.useragent }

    let options = { followRedirects: false, keepAlive: false, url: params.url, headers: headers, gzip: true, encoding: null }

    let proxy = 'None'

    let userAgent = params.useragent

    

    if (parseInt(ConfigHandler.getConfig().spfUseProxy) === 1) {

      if (parseInt(ConfigHandler.getConfig().spfUseHermesUserAgent) === 1) {

        userAgent = params.useragent + ' Hughes-PFB/' +

          params.agentid + '/' + params.tracetags

        headers['User-Agent'] = userAgent

        headers['Connection'] = 'Close'

      }

      

      proxy = 'http://' + ConfigHandler.getConfig().iosPrefetchProxyIp +

        ':' + ConfigHandler.getConfig().iosPrefetchProxyPort

      options['proxy'] = proxy

    }



    this.httpClient = request.get(options, (err, response, body) => {

      let result = {}

      if (!err) {

        this.response = response

        this.bodyLen = body.length

        logger.debug('%s Response info, %s', this.tag, this.resourceInfo())

        result = {

          statuscode: response.statusCode,

          headers: response.headers,

          body: body

        }

      } else {

        logger.error('%s, fetchUrl() failed! cause=%s, url=%s', JSON.stringify(this), err.message,

          this.url)

      }

      

      if (this.httpClient) {

           logger.debug('%s, fetchUrl() ending connection!', JSON.stringify(this.httpClient))

          this.httpClient.abort()

        }

        if (response && response.socket)         {

          response.socket.destroy()

        } 

      callBack(result, err)

    })

  }



  cancelFetch () {

    if (this.httpClient) {

      logger.debug('%s, Cancelling fetch for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

    }

  this.response.socket.removeAllListeners()

    }

  }



  close () {

    if (this.response && this.response.socket) {



      this.response.socket.destroy()

      //logger.debug('%s, close(), after socket.destroy(), statusTCP=%s', JSON.stringify(this.response), this.response.socket)

    }

    if (this.httpClient) {

      logger.debug('%s, Closing HTTP connection for url=%s', this.tag, this.url)

      this.httpClient.abort()

      this.httpClient = null

      this.url = null

      this.response = null

    }

  }

javascript node.js sockets tcplistener

edited Nov 12 '18 at 16:42

asked Nov 12 '18 at 15:02

Igor Kamalov

428

edited Nov 12 '18 at 16:42

asked Nov 12 '18 at 15:02

Igor Kamalov

428

edited Nov 12 '18 at 16:42

asked Nov 12 '18 at 15:02

Igor Kamalov

428

asked Nov 12 '18 at 15:02

Igor Kamalov

428

asked Nov 12 '18 at 15:02

Igor Kamalov

428

share you code to better understand the problem

– front_end_dev
Nov 12 '18 at 15:09

I just added it, sorry.

– Igor Kamalov
Nov 12 '18 at 15:11

which module you are using for request

– front_end_dev
Nov 12 '18 at 15:21

Im using 'request.js'

– Igor Kamalov
Nov 12 '18 at 16:42

add a comment |

share you code to better understand the problem

– front_end_dev
Nov 12 '18 at 15:09

I just added it, sorry.

– Igor Kamalov
Nov 12 '18 at 15:11

which module you are using for request

– front_end_dev
Nov 12 '18 at 15:21

Im using 'request.js'

– Igor Kamalov
Nov 12 '18 at 16:42

share you code to better understand the problem

– front_end_dev
Nov 12 '18 at 15:09

I just added it, sorry.

– Igor Kamalov
Nov 12 '18 at 15:11

which module you are using for request

– front_end_dev
Nov 12 '18 at 15:21

Im using 'request.js'

– Igor Kamalov
Nov 12 '18 at 16:42

add a comment |

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