just-login-core
Handles tokens for just-login.
Example
var JustLoginCore = var db = var core =
API
var Core =
var core = JustLoginCore(db[, options])
db
is expecting a levelup database.options
is an object that holds the (gasp) options!tokenGenerator
is expecting a function that returns an unique string each time it is called. This is used for token generation. Defaults to a UUID generator.tokenTtl
is a number in milliseconds of a token's Time To Live (TTL). Defaults to 5 minutes.tokenTtlCheckIntervalMs
is a number in milliseconds of the ttl's check interval. (See tiny-level-ttl,checkInterval
.) Defaults to 10 seconds.
- Returns
core
.
core
It emits some events and has a few methods:
core.beginAuthentication(sessionId, contactAddress[, cb])
Starts the authentication process by emitting the 'authentication initiated' event with a token and the contact address.
Something else must listen for the event, and send a message to the user. See core
events for more information.
sessionId
is a string of the session id that is trying to get authenticated.contactAddress
is string of the user's contact info, (usually an email address).cb
is a function with the following arguments:err
is an Error object or null.authReqInfo
is an object with the authentication request information. The object is identical to the object emitted in the event, with the following properties:contactAddress
is a string with the contact address.token
is a string of the token.
- Emits
core.on('authentication initiated', function (authReqInfo) { ... })
core
core.authenticate(token[, cb])
Authenticates the token, and calls back with the session id and contact address associated with that token. Then the token and it's associated data is deleted. A token can only be authenticated once.
token
is a string of the token that is trying to get authenticated.cb
is a function with the following arguments:err
is an Error object or null.credentials
is null is the user is not authenticated, and is an object if they are authenticated:contactAddress
is a string of their contact address.sessionId
is a string of their session id.
- Emits
core.on('authenticated', function (credentials) { ... })
core
core
events
authentication initiated
Emitted when beginAuthentication()
is called. (Which should be when the user clicks the "login" button.)
core
(You can use just-login-emailer to catch this event.)
authenticated
Emitted when core.authenticate()
is successful.
core
Install
Install with npm:
npm install just-login-core