Logfile NOT optional; Logging does not work

[andrewkim47]

NodeForwarder requires all 5 arguments. Omission of a Logfile argument returns the Usage suggestion:

For example, the command:

node nf2.js 8001 /dev/tty.usbmodem1431 57600

leads to:

usage: node nodeforwader.js [HTTP PORT] [SERIAL PORT] [BAUD] [BUFFER LENGTH] [LOG FILENAME optional]

When a logfile is inputted, there is a different error:

dyld: lazy symbol binding failed: Symbol not found: _node_module_register
Referenced from: /Users/lab/nodeforwarder2/node_modules/socket.io/node_modules/engine.io/node_modules/ws/build/Release/bufferutil.node
Expected in: dynamic lookup

dyld: Symbol not found: _node_module_register
Referenced from: /Users/lab/nodeforwarder2/node_modules/socket.io/node_modules/engine.io/node_modules/ws/build/Release/bufferutil.node
Expected in: dynamic lookup

Trace/BPT trap: 5

[dansteingart]

@andrewkim47 try now, and do this:

node nf2.js 8001 /dev/tty.usbmodem1431 57600 logyes >> logyes.txt

[andrewkim47]

That command creates the log file, and then writes the opening dialog to file before erroring out. The logfile contains:

  '/Users/akim/NodeForwarder2/nf.js',
  '8001',
  '/dev/tty.usbmodem1431',
  '57600',
  'logyes' ]
0
1
2

It then errors out with the message:

body-parser deprecated bodyParser: use individual json/urlencoded middlewares nf.js:88:9
body-parser deprecated undefined extended: provide extended option node_modules/body-parser/index.js:105:29
/Users/akim/NodeForwarder2/nf.js:75
   if (logfile) console.log(data);
       ^
ReferenceError: logfile is not defined
    at SerialPort.<anonymous> (/Users/akim/NodeForwarder2/nf.js:75:8)
    at SerialPort.emit (events.js:107:17)
    at Object.module.exports.raw [as parser] (/Users/akim/NodeForwarder2/node_modules/serialport/parsers.js:8:13)
    at Object.SerialPort.opts.dataCallback (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:181:12)
    at SerialPortFactory.SerialPort._emitData (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:396:20)
    at afterRead (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:372:20)
    at /Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:388:9
    at FSReqWrap.wrapper [as oncomplete] (fs.js:527:17)

A 4-argument [no log] command still returns the same "usage suggestion" error.
A 5-argument command with a nonsense log command
node nodeforwarder.js 8001 /dev/tty.usbmodem1431 57600 aoeu

returns the a similar error to the logyes

body-parser deprecated bodyParser: use individual json/urlencoded middlewares nf.js:88:9
body-parser deprecated undefined extended: provide extended option node_modules/body-parser/index.js:105:29
open
/Users/akim/NodeForwarder2/nf.js:75
   if (logfile) console.log(data);
       ^
ReferenceError: logfile is not defined
    at SerialPort.<anonymous> (/Users/akim/NodeForwarder2/nf.js:75:8)
    at SerialPort.emit (events.js:107:17)
    at Object.module.exports.raw [as parser] (/Users/akim/NodeForwarder2/node_modules/serialport/parsers.js:8:13)
    at Object.SerialPort.opts.dataCallback (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:181:12)
    at SerialPortFactory.SerialPort._emitData (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:396:20)
    at afterRead (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:372:20)
    at /Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:388:9
    at FSReqWrap.wrapper [as oncomplete] (fs.js:527:17)

it looks like logfile does not get defined as True on line37. is parts counted correctly?

[dansteingart]

You forgot to put a buffer in.  you still need a buffer

On March 8, 2016 at 9:21:08 PM, andrewkim47 ([email protected]) wrote:

That command creates the log file, and then writes the opening dialog to file before erroring out. The logfile contains:

'/Users/akim/NodeForwarder2/nf.js',
'8001',
'/dev/tty.usbmodem1431',
'57600',
'logyes' ]
0
1
2
It then errors out with the message:

body-parser deprecated bodyParser: use individual json/urlencoded middlewares nf.js:88:9
body-parser deprecated undefined extended: provide extended option node_modules/body-parser/index.js:105:29
/Users/akim/NodeForwarder2/nf.js:75
if (logfile) console.log(data);
^
ReferenceError: logfile is not defined
at SerialPort. (/Users/akim/NodeForwarder2/nf.js:75:8)
at SerialPort.emit (events.js:107:17)
at Object.module.exports.raw as parser
at Object.SerialPort.opts.dataCallback (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:181:12)
at SerialPortFactory.SerialPort._emitData (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:396:20)
at afterRead (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:372:20)
at /Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:388:9
at FSReqWrap.wrapper as oncomplete
A 4-argument [no log] command still returns the same "usage suggestion" error.
A 5-argument command with a nonsense log command
node nodeforwarder.js 8001 /dev/tty.usbmodem1431 57600 aoeu

returns the a similar error to the logyes

body-parser deprecated bodyParser: use individual json/urlencoded middlewares nf.js:88:9
body-parser deprecated undefined extended: provide extended option node_modules/body-parser/index.js:105:29
open
/Users/akim/NodeForwarder2/nf.js:75
if (logfile) console.log(data);
^
ReferenceError: logfile is not defined
at SerialPort. (/Users/akim/NodeForwarder2/nf.js:75:8)
at SerialPort.emit (events.js:107:17)
at Object.module.exports.raw as parser
at Object.SerialPort.opts.dataCallback (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:181:12)
at SerialPortFactory.SerialPort._emitData (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:396:20)
at afterRead (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:372:20)
at /Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:388:9
at FSReqWrap.wrapper as oncomplete
logfile does get defined as True on line37 so I don' t know why it's complaining

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[dansteingart]

node nf2.js 8001 /dev/tty.usbmodem1431 57600 10000 logyes >> logyes.txt

[andrewkim47]

Oops. Now that I put in a correct arguments, I still see 2 issues:

1. The data being written to file (or displayed to terminal) is not writing integers, but memory addresses in angle brackets.

node nf2.js 8001 /dev/tty.usbmodem1411 57600 1000 logno >> log.txt

My arduino is simply writing millis() to Serial. But the log file's contents are:

[ 'node',
  '/Users/akim/NodeForwarder2/nodeforwarder.js',
  '8001',
  '/dev/tty.usbmodem1411',
  '57600',
  '1000',
  'logyes' ]
0
1
2
Buffer 30 0d 0a>  [OMITTING Leading angle brackets because Github can't post them]
Buffer 39 39 39 0d>
Buffer 0a>
Buffer 31 39 39 39 0d 0a>
Buffer 33 30 30 30 0d 0a>
Buffer 34 30 30 30 0d 0a>
Buffer 35 30 30 30 0d 0a>
Buffer 36 30 30 30 0d 0a>
Buffer 37 30 30 31>
Buffer 0d 0a>
Buffer 38 30 30 31 0d 0a>
Buffer 39 30 30 30 0d 0a>
Buffer 31 30 30 30 31 0d 0a>
Buffer 31 31 30 30 31 0d 0a>
Buffer 31 32 30 30 32 0d>

2. Minor issue. The script requires an argument after the [BUFFER].

node nf2.js 8001 /dev/tty.usbmodem1411 57600 1000

Errors out with the same "logfile not defined"

   if (logfile) console.log(data);
       ^
ReferenceError: logfile is not defined
    at SerialPort.<anonymous> (/Users/akim/NodeForwarder2/nf2.js:75:8)
    at SerialPort.emit (events.js:107:17)
    at Object.module.exports.raw [as parser] (/Users/akim/NodeForwarder2/node_modules/serialport/parsers.js:8:13)
    at Object.SerialPort.opts.dataCallback (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:181:12)
    at SerialPortFactory.SerialPort._emitData (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:396:20)
    at afterRead (/Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:372:20)
    at /Users/akim/NodeForwarder2/node_modules/serialport/serialport.js:388:9
    at FSReqWrap.wrapper [as oncomplete] (fs.js:527:17)

Omitting the pipe to a logfile is the only way to get the "old" behavior of terminal output. But you still need the logyes argument.