Module username_service 

Username service – Postgres CRUD with optional Redis cache/publish.

Each wallet can set exactly one display name. Usernames are unique case-insensitively (stored as-is, compared via LOWER()).

Structs

UsernameService

Enums

UsernameServiceError

Errors from username write operations that callers can pattern-match on.

Constants

MAX_LEN 🔒

Maximum username length.

MIN_LEN 🔒

Minimum username length.

RESERVED_USERNAMES 🔒

Functions

redis_reverse_key 🔒

redis_wallet_key 🔒

validate_username

Validate a username against the platform rules.