%dw 2.0
output application/json
---
log("WARNING", "Houston, we have a problem.")
log
DataWeave 2.2 is compatible and bundled with Mule 4.2. This version of Mule reached its End of Life on May 2, 2023, when Extended Support ended. Deployments of new applications to CloudHub that use this version of Mule are no longer allowed. Only in-place updates to applications are permitted. MuleSoft recommends that you upgrade to the latest version of Mule 4 that is in Standard Support so that your applications run with the latest fixes and security enhancements. |
log(String, T): T
Without changing the value of the input, log
returns the input as a system
log.
Use this function to help with debugging DataWeave scripts. A Mule app
outputs the results through the DefaultLoggingService
, which you can see
in the Studio console.
Parameters
Name | Description |
---|---|
|
An optional string that typically describes the log. |
|
The value to log. |
Example
This example logs the specified message. Note that the DefaultLoggingService
in a Mule app that is running in Studio returns the message
WARNING - "Houston, we have a problem," adding the dash `-
between the
prefix and value. The Logger component’s LoggerMessageProcessor
returns
the input string "Houston, we have a problem."
, without the WARNING
prefix.