oidc-provider/lib/models/mixins/stores_pkce.js

OAuth 2.0 Authorization Server implementation for Node.js with OpenID Connect

export default (superclass) => class extends superclass {
  static get IN_PAYLOAD() {
    return [
      ...super.IN_PAYLOAD,
      'codeChallenge',
      'codeChallengeMethod',
    ];
  }
};