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[@salesforce/b2c-tooling-sdk](../../../modules.md) / [operations/mrt](../index.md) / getAccessControlHeader

# Function: getAccessControlHeader()

> **getAccessControlHeader**(`options`, `auth`): `Promise`\<\{ \}\>

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/access-control.ts:258](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/e7c16f1ae423da0aa47b3e10be88f9770b53619b/packages/b2c-tooling-sdk/src/operations/mrt/access-control.ts#L258)

Gets an access control header from an MRT environment.

## Parameters

### options

[`GetAccessControlHeaderOptions`](../interfaces/GetAccessControlHeaderOptions.md)

Get options

### auth

[`AuthStrategy`](../../../auth/interfaces/AuthStrategy.md)

Authentication strategy (ApiKeyStrategy)

## Returns

`Promise`\<\{ \}\>

The header

## Throws

Error if request fails