Stubbed out the OAuth2-server model

OAuth2-server.js

/**
 * @typedef Client
 * @type Object
 * @property {String} id
 * @property {String[]} grants
 * @property {String[]} redirectUris
 */

/**
 * @typedef User
 * @type Object
 */

/**
 * @typedef Scope
 * @type Object
 */

/**
 * @typedef Token
 * @type Object
 * @property {AccessToken} accessTokne
 * @property {AuthorizationCode} authorizationCode
 * @property {RefreshToken} refreshToken
 * @property {Scope} scope
 */

/**
 * @typedef AccessToken
 * @extends Token
 * @type Object
 * @property {Client} client
 * @property {User} user
 * @property {Date} expiresAt
 */

/**
 * @typedef RefreshToken
 * @extends Token
 * @type Object
 * @property {Client} client
 * @property {User} user
 * @property {Date} expiresAt
 */

/**
 * @typedef AuthorizationCode
 * @type Object
 * @property {String} authorizationCode
 * @property {Client} client
 * @property {User} user
 * @property {Date} expiresAt
 * @property {String} redirectUri
 */




/**
 * @param  {Token} token
 * @return {Promise.<AccessToken>}
 */
export function getAccessToken( token ){ }

/**
 * @param  {String} id
 * @param  {String} secret
 * @return {Promise.<Client>}
 */
export function getClient( id, secret ){ }

/**
 * @param  {Token} token
 * @param  {Client} client
 * @param  {User} user
 * @return {Promise.<Token>}
 */
export function saveToken( token, client, user ){ }

/**
 * @param  {User} user
 * @param  {Client} client
 * @param  {Scope} scope
 * @return {Promise.<bool>}
 */
export function validateScope( user, client, scope ){ }

/**
 * @return {Promise.<AccessToken>}
 */
export function generateAccessToken( ){ }

/**
 * @return {Promise.<AuthorizationCode>}
 */
export function generateAuthorizationCode( ){ }

/**
 * @return {Promise.<RefreshToken>}
 */
export function generateRefreshToken( ){ }

/**
 * @param  {String} authorizationCode
 * @return {Promise.<AuthorizationCode>}
 */
export function getAuthorizationCode( authorizationCode ){

}


/**
 * @param  {String} authorizationCode
 * @return {Promise.<bool>}
 */
export function revokeAuthorizationCode( authorizationCode ){


}

/**
 * @param  {token} token
 * @param  {Client} client
 * @param  {user} user
 * @return {Promise.<>}
 */
export function saveAuthorizationCode( token, client, user ){ }

/**
 * @param  {Client} client
 * @return {Promise.<User>}
 */
export function getUserFromClient( client ){ }

/**
 * @param  {String} username
 * @param  {String} password
 * @return {User}
 */
export function getUser( username, password ){ }

/**
 * @param  {Token} token
 * @return {RefreshToken}
 */
export function getRefreshToken( token ){ }

/**
 * @param  {Token} token
 * @return {Promise.<bool>}
 */
export function revokeToken( token ){ }