---
title: Logger API
slug: logger-api
icon: {"faIcon":"fa-solid fa-arrow-down-short-wide"}
docTags: 
createdAt: 2025-06-10T06:44:31.749Z
---

Logging Business API

## Summary

The Logger functionality provides the ability to log application messages, the logger can be configured to log only messages if the desired logging level are set.

There are 5 levels of logging in Servicely.

- Error
- Warning
- Info
- Debug
- Trace

## Logging level

The logging level can be set as part of the code where logging is been used.

**Basic configuration:**

```javascript
let myLogger = Logger(“workflowLog”);
```

By default these debug levels are set:

- Error (enabled)
- Warning (enabled)
- Info (enabled)

Advanced configuration:

```javascript
let myLogger = Logger(“workflowLog”);
```

The log level can be set inside the script (Java script code) with logLevel(“Warn”).

To have the ability to change log levels on demand or for a specific instance it can be configured in the Servicely backend by navigating to:

### *Administration => Logging & statistics => System log level*

| **Field** | **Description**    |                                                              |
| --------- | ------------------ | ------------------------------------------------------------ |
| Source    | Name of the Logger |                                                              |
| Level     | Debug level        | - Error<br />- Warning<br />- Info<br />- Debug<br />- Trace |

## Constructor

| Method               | Description                              |
| -------------------- | ---------------------------------------- |
| Logger(name: String) | Creates a logger with the specified name |

## Methods

| Method                                       | Description                                                           |
| -------------------------------------------- | --------------------------------------------------------------------- |
| logLevel(): String                           | Returns the current log level as a string                             |
| logLevel(level: String): LoggerObjectWrapper | Sets the logging level of the logger                                  |
| isErrorEnabled(): Boolean                    | Used as a check to see if the error logging level has been enabled.   |
| isWarnEnabled(): Boolean                     | Used as a check to see if the warning logging level has been enabled. |
| isInfoEnabled(): Boolean                     | Used as a check to see if the info logging level has been enabled.    |
| isDebugEnabled(): Boolean                    | Used as a check to see if the debug logging level has been enabled.   |
| isTraceEnabled(): Boolean                    | Used as a check to see if the trace logging level has been enabled.   |
| error(args: Array\<\*>)                      | Used to log an error.                                                 |
| warn(args: Array\<\*>)                       | Used to log a warning.                                                |
| info(args: Array\<\*>)                       | Used to log an info message.                                          |
| debug(args: Array\<\*>)                      | Used to log a debug message.                                          |
| trace(args: Array\<\*>)                      | Used to log a trace message.                                          |