---
editLink: false
lastUpdated: false
---

[@salesforce/b2c-tooling-sdk](../../modules.md) / [auth](../index.md) / applyAuthRequestMiddleware

# Function: applyAuthRequestMiddleware()

> **applyAuthRequestMiddleware**(`request`, `middleware`): `Promise`\<`Request`\>

Defined in: [packages/b2c-tooling-sdk/src/auth/middleware.ts:223](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/e7c16f1ae423da0aa47b3e10be88f9770b53619b/packages/b2c-tooling-sdk/src/auth/middleware.ts#L223)

Applies auth middleware to a request.

This helper applies all registered `onRequest` middleware in order,
accumulating modifications to the request.

## Parameters

### request

`Request`

The original request

### middleware

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

Array of middleware to apply

## Returns

`Promise`\<`Request`\>

The modified request