orElseTry
orElseTry<T, R>(previous: TryResult<T>, orElse: () -> R): TryResult<T | R>
Function to use with try to chain multiple try requests.
Introduced in DataWeave version 2.2.0.
Parameters
| Name | Description |
|---|---|
|
Result from a previous call to |
|
Argument to try if the |
Example
This example waits shows how to chain different try
Source
%dw 2.0
import * from dw::Runtime
var user = {}
var otherUser = {}
output application/json
---
{
a: try(() -> user.name!) orElseTry otherUser.name!,
b: try(() -> user.name!) orElseTry "No User Name"
}Output
{
"a": {
"success": false,
"error": {
"kind": "KeyNotFoundException",
"message": "There is no key named 'name'",
"location": "\n9| a: try(() -> user.name!) orElseTry otherUser.name!,\n ^^^^^^^^^^^^^^",
"stack": [
"main (org::mule::weave::v2::engine::transform:9:40)"
]
}
},
"b": {
"success": true,
"result": "No User Name"
}
}