Invalid transport, must be an object with a log method.

[khaitranhq]

Hi, I'm new to winston-logtash.
I run demo code :

var winston = require('winston');
 
  //
  // Requiring `winston-logstash` will expose
  // `winston.transports.Logstash`
  //
  require('winston-logstash');
 
  winston.add(winston.transports.Logstash, {
    port: 28777,
    node_name: 'my node name',
    host: '127.0.0.1'
  });

and I got:

Error: Invalid transport, must be an object with a log method.
    at new LegacyTransportStream (/mnt/01D5E4BA635766E0/Coding/Projects/offshorevn/offshorevn-log-analysis/node_modules/winston-transport/legacy.js:18:11)
    at DerivedLogger.add (/mnt/01D5E4BA635766E0/Coding/Projects/offshorevn/offshorevn-log-analysis/node_modules/winston/lib/winston/logger.js:345:11)
    at Object.winston.<computed> [as add] (/mnt/01D5E4BA635766E0/Coding/Projects/offshorevn/offshorevn-log-analysis/node_modules/winston/lib/winston.js:110:68)
    at Object.<anonymous> (/mnt/01D5E4BA635766E0/Coding/Projects/offshorevn/offshorevn-log-analysis/index.js:9:9)
    at Module._compile (internal/modules/cjs/loader.js:1133:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)
    at Module.load (internal/modules/cjs/loader.js:977:32)
    at Function.Module._load (internal/modules/cjs/loader.js:877:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)
    at internal/main/run_main_module.js:18:47

Versions:

"winston": "^3.2.1",
 "winston-logstash": "^0.4.0"

Thanks for any helps

[jaakkos]

Please see the updated README.md