1. module express-pino-logger
   1. function express-pino-logger (opts, stream)
   2. object express-pino-logger.stdSerializers
2. module express-pino-logger.stdSerializers
   1. function express-pino-logger.stdSerializers.req (req)
   2. function express-pino-logger.stdSerializers.res (res)

module express-pino-logger

function express-pino-logger (opts, stream)

• description and source-code

  function pinoLogger(opts, stream) {
    if (opts && opts._writableState) {
      stream = opts
      opts = null
    }
  
    opts = opts || {}
    opts.serializers = opts.serializers || {}
    opts.serializers.req = opts.serializers.req || asReqValue
    opts.serializers.res = opts.serializers.res || pino.stdSerializers.res
    opts.serializers.err = opts.serializers.err || pino.stdSerializers.err
  
    var useLevel = opts.useLevel || 'info'
    delete opts.useLevel
  
    var theStream = opts.stream || stream
    delete opts.stream
  
    var logger = wrapChild(opts, theStream)
    var genReqId = reqIdGenFactory(opts.genReqId)
    loggingMiddleware.logger = logger
    return loggingMiddleware
  
    function onResFinished (err) {
      this.removeListener('finish', onResFinished)
      this.removeListener('error', onResFinished)
  
      var log = this.log
      var responseTime = Date.now() - this.startTime
  
      if (err) {
        log.error({
          res: this,
          err: err,
          responseTime: responseTime
        }, 'request errored')
        return
      }
  
      log[useLevel]({
        res: this,
        responseTime: responseTime
      }, 'request completed')
    }
  
    function loggingMiddleware (req, res, next) {
      req.id = genReqId(req)
      req.log = res.log = logger.child({req: req})
      res.startTime = Date.now()
      if (!req.res) { req.res = res }
  
      res.on('finish', onResFinished)
      res.on('error', onResFinished)
  
      if (next) {
        next()
      }
    }
  }

• example usage

  n/a

module express-pino-logger.stdSerializers

function express-pino-logger.stdSerializers.req (req)

• description and source-code

  function asReqValue(req) {
    return {
      id: req.id,
      method: req.method,
      url: req.url,
      headers: req.headers,
      remoteAddress: req.connection.remoteAddress,
      remotePort: req.connection.remotePort
    }
  }

• example usage

  n/a

function express-pino-logger.stdSerializers.res (res)

• description and source-code

  function asResValue(res) {
    return {
      statusCode: res.statusCode,
      header: res._header
    }
  }

• example usage

  n/a