message_before event from fcf-framework-core package

"message_before" event of base class fcf.EventEmitter (class fcf.Logger)

Event: message_before

Available from version: 2.0.2

Message logging event. Called before output and call of logger handlers

Event arguments

object a_info

- information object

integer level - Logging level
string module - The name of the module from which the logging is called
string output - Prefixed output message (populated by handlers)
string message - Displaying a message without prefixes (filled in by the fcf.Logger.messageHandler handler)
[mixed] args - Arguments passed to logger for output
fcf.Logger logger - Pointer to logger object
boolean break - If true, then further execution of handlers is interrupted

Example: Application

fcf.log.on("message_before", (a_info)=>{ console.log(a_info.args); }); fcf.log.tst("Application", "Hello world!");

Output:

[ 'Hello world!' ] 2023-04-18 13:44:40.794 [PID:23281] [TST] [MOD:Application]: Hello world!