Fx.log is used to record system runtime logs and debugging information.

Table of Contents

• Table of Contents
• Summary
• Function Categories
  • Log Module
• Changelog
• Background
• Applicable Scenarios
• Prerequisites
• Steps
• Notes

Summary

The overview of this document is as follows: Used to record runtime logs, warnings, errors, and debug information.

Function Categories

Log Module

Used to record runtime logs, warnings, errors, and debug information.

Method Name	Description	Syntax
info	Runtime log	Fx.log.info(...)
warn	Runtime log	Fx.log.warn(...)
error	Runtime log	Fx.log.error(...)
debug	Debug log	Fx.log.debug(...)
lap	Time consumption statistics	Fx.log.lap(...)

info

Function: Runtime log.

Syntax: Fx.log.info(Object data)

Request parameters:

Parameter Name	Type	Description	Required
data	Object	Log data to be recorded	Y

Example:

log.info(' Hello fxiaoke ')

Notice:

• The info, warn, and error levels can record up to 400 lines in total.

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warn

Function: Runtime log.

Syntax: Fx.log.warn(Object data)

Request parameters:

Parameter Name	Type	Description	Required
data	Object	Log data to be recorded	Y

Example:

log.warn(' Hello fxiaoke ')

Notice:

• The info, warn, and error levels can record up to 400 lines in total.

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error

Function: Runtime log.

Syntax: Fx.log.error(Object data)

Request parameters:

Parameter Name	Type	Description	Required
data	Object	Log data to be recorded	Y

Example:

log.error(' Hello fxiaoke ')

Notice:

• The info, warn, and error levels can record up to 400 lines in total.

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debug

Function: Debug log. It is only output in the debug window and is not recorded in runtime logs.

Syntax: Fx.log.debug(Object data)

Request parameters:

Parameter Name	Type	Description	Required
data	Object	Log data to be recorded	Y

Example:

log.debug(' Hello fxiaoke ')

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lap

Function: Time consumption statistics for each step. Effective only in debug mode.

Syntax: Fx.log.lap(String step)

Request parameters:

Parameter Name	Type	Description	Required
step	String	Statistical step	Y

Example:

log.lap('createObject-AccountObj')

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Changelog

Version	Date	Changes	Author
v1.0	2026-05-19	Initial version

Background

This document describes the related API features and usage methods to help developers quickly integrate the relevant capabilities.

Applicable Scenarios

• Business scenario integration
• Data processing and synchronization
• System integration and extension

Prerequisites

• Access to Fxiaoke Open Platform
• Application authorization and configuration completed
• Basic knowledge of the relevant business domain

Steps

Please refer to the detailed instructions for each API.

Notes

• Ensure prerequisites are met before calling APIs
• Pay attention to API call frequency limits
• Refer to error code documentation for exception handling

Compatibility note: This version currently has no deprecated or compatibility notes.