kibana/docs/development/plugins/expressions/public/kibana-plugin-plugins-expressions-public.executioncontract.getdata.md
2020-09-30 09:10:28 +02:00

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[Home](./index.md) &gt; [kibana-plugin-plugins-expressions-public](./kibana-plugin-plugins-expressions-public.md) &gt; [ExecutionContract](./kibana-plugin-plugins-expressions-public.executioncontract.md) &gt; [getData](./kibana-plugin-plugins-expressions-public.executioncontract.getdata.md)
## ExecutionContract.getData property
Returns the final output of expression, if any error happens still wraps that error into `ExpressionValueError` type and returns that. This function never throws.
<b>Signature:</b>
```typescript
getData: () => Promise<Output | ExpressionValueError>;
```