%dw 2.0
import * from dw::System
output application/json
---
{
"envVars" : [
"real" : envVar("SHELL"),
"fake" : envVar("FAKE_ENV_VAR")
]
}
envVar
DataWeave 2.1 is compatible with Mule 4.1. Standard Support for Mule 4.1 ended on November 2, 2020, and this version of Mule will reach its End of Life on November 2, 2022, when Extended Support ends. 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. |
envVar(String): String | Null
Returns an environment variable with the specified name or null
if the
environment variable is not defined.
Example
This example returns a Mac command console (SHELL
) path and returns null
on FAKE_ENV_VAR
(an undefined environment variable). SHELL
is one of the
standard Mac environment variables. Also notice that the import
command
enables you to call the function without prepending the module name to it.