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

# Function: describeInstanceAuth()

> **describeInstanceAuth**(`config`, `options`): [`InstanceAuthSummary`](../interfaces/InstanceAuthSummary.md)

Defined in: [packages/b2c-tooling-sdk/src/auth/instance-auth.ts:139](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/b7ec7d4a1464ef7bbb6a5757ffd6f99a18a31bf6/packages/b2c-tooling-sdk/src/auth/instance-auth.ts#L139)

Describes how an instance configuration authenticates WebDAV and API
requests, and which stored sessions those can use.

## Parameters

### config

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

### options

[`DescribeInstanceAuthOptions`](../interfaces/DescribeInstanceAuthOptions.md) = `{}`

## Returns

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