Contact Us 1-800-596-4880
  1. Homepage
  2. DataWeave (2.1)
  3. DataWeave Reference
  4. Runtime (dw::Runtime)

  5. try

try

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.

try(() -> T): TryResult<T>

Evaluates the delegate function and returns an object with the result or an error message.

Parameters

Name Description

delegate

The function to evaluate.

Example

This example passes the fail function as an argument to try.

Source

%dw 2.0
import try, fail from dw::Runtime
output application/json
---
try(fail)

Output

{
    "success": false,
    "error": {
    "kind": "UserException",
    "message": "Error",
    "location": "Unknown location",
    "stack": [
      "main (anonymous:0:0)"
    ]
  }
}