auth

Auth Service 🔑

This service is responsible for creating users & user’s session CRUD(authentication).

Database 🗄

Features 🚀

Auth

• SignUp
• SignIn
• Logout(For any session)
• Renew auth token by refresh token
• Get current open sessions

Flow 🌊

• Sign-up
  • User creates a new account with email & password as login credentials.
  • Account confirmation(Email, Phone) is required to use the application.
  • User's info are passed along the request to the auth service.

sequenceDiagram
    autonumber
    API->>Auth Service: Send new account's Info
    activate API
    activate Auth Service
    Auth Service->>Database: Create Account
    activate Database
    Database-->>Auth Service: Account Created
    deactivate Database
    Auth Service-->>API: Account Created
    deactivate Auth Service
    deactivate API

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• Sign-in
  • User signs in with email & password.
  • Generates a new auth token and refresh token for the user.
  • Create a new session for the user in the database.
  • Notifies the user about the new login session by sending an email.

sequenceDiagram
    autonumber
    API->>+Auth Service: Send user's credentials
    Auth Service->>+Database: Get user's account
    Database-->>-Auth Service: User's account
    Auth Service->>+Database: Create new session
    Auth Service->>Auth Service: Validate user's password
    Auth Service->>Auth Service: Generate auth token & refresh token
    Auth Service->>+Database: Create new user's session
    Database-->>-Auth Service: Session created
    Auth Service->>Message Broker: Send email to user
    Note over Auth Service, Message Broker: Send email about the new login session
    Auth Service-->>-API: Auth token & refresh token

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• Logout
  • User id is taken from context
  • User signs out from the application.
  • Revokes the user's auth token.
  • Deletes the user's session from the database.

sequenceDiagram
    autonumber
    API->>+Auth Service: Send the session's info to logout from
    Auth Service->>+Database: Get user's session
    Database-->>-Auth Service: User's session
    Auth Service->>+Database: Delete user's session
    Database-->>-Auth Service: Session deleted
    Auth Service->>Token Cache: Delete cached token
    Token Cache-->>Auth Service: Delete token from cache
    Auth Service-->>-API: User logged out successfully

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• Renew Auth Token(Access, Refresh)
  • User id is taken from context
  • Check the refresh token's lifetime has not expired.
  • Check the user's session in the database.
  • Check the user's session is not revoked, expired, or deleted.
  • Generate a new auth token and refresh token for the user.
  • Update the user's session in the database.
  • Return the new auth token and refresh token.

sequenceDiagram
    autonumber
    API->>+Auth Service: Send the refresh token to renew
    Auth Service->>Auth Service: Validate refresh token
    Auth Service->>+Database: Get user's session
    Database-->>-Auth Service: User's session
    Auth Service->>Auth Service: Validate user's session
    Auth Service->>Auth Service: Generate auth token & refresh token
    Auth Service->>+Database: Update user's session
    Database-->>-Auth Service: Session updated
    Auth Service->>+Token Cache: Remove old access token
    Token Cache-->>-Auth Service: Old access token removed
    Auth Service-->>-API: New auth token & refresh token

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• Get Current Sessions
  • Return the current user sessions
  • User id is taken from context

sequenceDiagram
    autonumber
    API->>+Auth Service: Get avaliable sesisons
    Auth Service->>+Database: Get live sessions
    Database-->>-Auth Service: Live sessions
    Auth Service-->>-API: Return live stored sessions

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