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[@salesforce/b2c-tooling-sdk](../../modules.md) / [slas](../index.md) / generateCodeChallenge

# Function: generateCodeChallenge()

> **generateCodeChallenge**(`verifier`): `string`

Defined in: [packages/b2c-tooling-sdk/src/slas/pkce.ts:36](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/4c2d4c5cb34e8e0ea15a260d257e468c823c4885/packages/b2c-tooling-sdk/src/slas/pkce.ts#L36)

Generates a PKCE code challenge from a code verifier using S256.

## Parameters

### verifier

`string`

The code verifier to hash

## Returns

`string`

The base64url-encoded SHA-256 hash of the verifier