0.0.20 • Published 7 years ago
cornerstonelabs-semantic-logging v0.0.20
Semantic Logging for NodeJS.
Strongly typed logging.
Current adapters:
Console
Winston
Usage:
Install the library:
npm install cornerstonelabs-semantic-logging --save
Import it:
var semanticLogging = require("cornerstonelabs-semantic-logging");
The interesting class is semanticLogging.SemanticLogger
.
You have five decorators/attributes to define the log level:
semanticLogging.debug, semanticLogging.verbose, semanticLogging.info, semanticLogging.warn, semanticLogging.error
This is the bit you need to do:
Subclass SemanticLogger
and add functions for each log message.
Decorate the functions with the log level. The following log levels are supported: @debug @verbose @info @warn @error
Example:
var semanticLogging = require("cornerstonelabs-semantic-logging");
var debug = semanticLogging.debug;
var verbose = semanticLogging.verbose;
var info = semanticLogging.info;
var warn = semanticLogging.warn;
var error = semanticLogging.error;
class DoingSomethingLogging extends semanticLogging.SemanticLogger {
constructor (request) {
super (request);
}
@info
initialising () {};
@info
started () {};
@error
startFailed () {};
}
// now let's do some logging:
function startDoingSomething () {
var logger = new DoingSomethingLogging();
logger.initialising();
logger.started();
if (err) {
logger.startFailed(err);
}
}
You can pass any number of parameters into the log function and they will be added to the log message.
0.0.20
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