Contact Free trial Login

fail

fail(String): Nothing

Produces a failure with the specified message.

Parameters

Name Description

message

An error message (String).

Example

This example returns a failure message Data was empty instead of the desiredResult ([1,2,3]) because the expression (sizeOf(emptyArray) ⇐ 0) is true.

Source

%dw 2.0
import * from dw::Runtime
var emptyArray = []
var desiredResult = [1,2,3]
output application/json
---
if(sizeOf(emptyArray) <= 0) fail('Data was empty') else desiredResult

Output

Data was empty
Trace:
  at fail (Unknown)
  at main (line: 6, column: 25)

In the Studio console component, the output looks something like this:

ERROR 2018-07-29 11:47:44,983 ...
*********************************
Message               : "Data was empty
...

We use cookies to make interactions with our websites and services easy and meaningful, to better understand how they are used and to tailor advertising. You can read more and make your cookie choices here. By continuing to use this site you are giving us your consent to do this.