# SubstituteStringProperty

This processor matches a key's value against a regular expression and replaces all matches with a replacement string.

For more information about this processor including examples, see substituteString in the CloudWatch Logs User Guide.

- Source: [`aws-logs/lib/transformer.ts`](https://github.com/aws/aws-cdk/blob/v2.274.0/packages/aws-cdk-lib/aws-logs/lib/transformer.ts#L512)
- Type last changed: v2.207.0 · 24 Jul 2025

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_logs as logs } from 'aws-cdk-lib';
const substituteStringProperty: logs.SubstituteStringProperty = {
  entries: [{
    from: 'from',
    source: 'source',
    to: 'to',
  }],
};
```

## Properties

- `entries`: [SubstituteStringEntryProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_logs.SubstituteStringEntryProperty.html)[] (required) — An array of objects, where each object contains information about one key to match and replace.