---
title: "redactString"
description: "An easy way to redact sensitive information from a string"
---

`redactString` is a [Tagged template](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals#tagged_templates) that can be used to redact sensitive information from a string.

It is used internally to redact Bearer tokens in Integrations that use [backgroundFetch](/sdk/io/backgroundFetch).

<RequestExample>

```typescript
const response = return io.backgroundFetch<CreateCompletionResponseData>(
  "background",
  "https://someapi.com/v1/endpointname",
  {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      //by using `redactString` the apiKey will be redacted in the logs
      Authorization: redactString`Bearer ${auth.apiKey}`,
    },
    body: JSON.stringify(params),
  }
);
```

</RequestExample>