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[@salesforce/b2c-tooling-sdk](../../modules.md) / [clients](../index.md) / createExtraParamsMiddleware

# Function: createExtraParamsMiddleware()

> **createExtraParamsMiddleware**(`config`): `Middleware`

Defined in: [packages/b2c-tooling-sdk/src/clients/middleware.ts:621](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/67fb8580ac3c5b372617ee3ec3fc8f2bc9f16174/packages/b2c-tooling-sdk/src/clients/middleware.ts#L621)

## Parameters

### config

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

## Returns

`Middleware`