account registration

Workflow of account registration

sequenceDiagram
    participant web as Web Browser
    participant blog as Ad Service
    participant account as Account Service
    participant mail as Mail Service
    participant sql as Database
    participant file as Storage

    Note over web,file: The user starts account registration
    web->>+account: Start registration
    Note right of web: POST /auth/registration<br/>{"username","email"}
    account->>sql: Query username and email
    sql->>account: Respond with query result

    alt Email or username exists
        account->>web: Invalid details (need to recover login details)
        Note right of web: RESPONSE: {"success":false,<br>"errors":{["username":"username exists",<br>"email":"email exists"}}
    else Email and username not found, can proceed with registration
        account->>web: Successfully registers
        Note right of web: RESPONSE: {"account":{"account_id":1},<br>"stores":{"store_id":1},<br>"user":{"user_id":1}}}
        account->>sql: Create account, store, user to status NEW
    end
    
    Note over web,file: After registration, notification is sent for email verification
    account->>sql: Queue email
    account->>mail: Dispatch email
    
    Note over web,file: Email verification, user click on url to activate account
    web->>account: Click url with token
    account->>sql: Update account, store, user status to ACTIVE

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