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README
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README
The log package is used by Go services to log messages to STDOUT.
How To Use
To use the log package you first need to import the library into your project:
import "github.com/IOTechSystems/go-mod-edge-utils/pkg/log"
To send a log message to STDOUT, you first need to create a Logger with desired Log Level and then you can send log messages (indicating the log level of the message using one of the various log function calls).
logger = log.InitLogger("SERVICE_NAME", configuration.LogLevel, nil)
logger.Info("Something interesting")
logger.Infof("Starting %s %s ", internal.CoreDataServiceKey, edgex.Version)
logger.Errorf("Something bad happened: %s", err.Error())
Log messages can be logged as Info, Debug, Trace, Warn, or Error
Documentation
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Index ¶
Constants ¶
View Source
const ( TraceLog = "TRACE" DebugLog = "DEBUG" InfoLog = "INFO" WarnLog = "WARN" ErrorLog = "ERROR" )
These constants identify the log levels in order of increasing severity.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Logger ¶
type Logger interface {
// SetLogLevel sets minimum severity log level. If a logging method is called with a lower level of severity than
// what is set, it will result in no output.
SetLogLevel(logLevel string) error
// LogLevel returns the current log level setting
LogLevel() string
// Debug logs a message at the DEBUG severity level
Debug(msg string, args ...any)
// Error logs a message at the ERROR severity level
Error(msg string, args ...any)
// Info logs a message at the INFO severity level
Info(msg string, args ...any)
// Trace logs a message at the TRACE severity level
Trace(msg string, args ...any)
// Warn logs a message at the WARN severity level
Warn(msg string, args ...any)
// Debugf logs a formatted message at the DEBUG severity level
Debugf(msg string, args ...any)
// Errorf logs a formatted message at the ERROR severity level
Errorf(msg string, args ...any)
// Infof logs a formatted message at the INFO severity level
Infof(msg string, args ...any)
// Tracef logs a formatted message at the TRACE severity level
Tracef(msg string, args ...any)
// Warnf logs a formatted message at the WARN severity level
Warnf(msg string, args ...any)
}
Logger defines the interface for logging operations.
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