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Node Red node for logging and debugging that dynamically turns off after reporting a set number of points.
The code can be used in developed nodes for loggings. Benefit it can be used to sample important detail in case of issues. Tracing could be dynamically turned on by special topic messages.
const Logger = require("logger");
const logger = new Logger("identifier");
The following inserted where required to log
if(logger.active) logger.send({label:"a label" ,data:data});
if(logger.active) logger.send("a message");
logger.sendInfo("Copyright 2020 Jaroslav Peter Prib");
Use of active is to avoid overhead of function call and parameter preparation when logging is not in effect. It changes state by default after 100 “send” are issued
Alternatively can create by
const logger = new Logger({name:"identifier",count:10,active:true,label:"debug"});
Property “node” can be used to place status on node. “count” is number of sends processed before active set off. Default is 100 “active” is initial state, default being true. “label” is set according to standard being info,warn,error,debug,trace. Default is debug,
Follow calls available:
logger.setOff(); //turn off logging
logger.setOn(); //turn on logging for next x points
logger.setOn(22); //turn on logging for next 22 points
logger.sendInfo("a message"); //always send info message
logger.sendWarn("a message"); //always send warn message
logger.sendError("a message"); //always send error message
logger.sendDebug("a message",{a:a}); //always send error message
logger.objectDump(anObject); // dump an object
logger.stackDump(); // dump stack trace
logger.sendErrorAndDump("a message",anObject); //always sendError+objectDump+stackDump
logger.sendErrorAndStackDump("a message"); //sendError+stackDump
Defines a node that will log messages, send to a second port and/or send to debug console for a set number of messages.
Run the following command in the root directory of your Node-RED install or via GUI install
npm install node-red-contrib-logger
0.0.6 Add parameter value to send json data to debug console and handle circular references
0.0.5 Add parameter value to send json data to display
0.0.4 Fixes bug and add warn/error alias
0.0.3 Fixes on dump and stack
0.0.2 add more functions
0.0.1 base