Function I/O
| Name | In | Out | Side | Purpose |
|---|---|---|---|---|
| Issue | ctx, userId | InviteCode | error | tx | Generates a unique code and writes the matching invite_codes row. |
| generateCode | rand | code | pure | Produces a 10-char alphanumeric token. |
Variables
| Name | Type | Scope | Purpose |
|---|---|---|---|
| code | string | tx | Newly minted invite token recorded against the member. |
| row | InviteCodeRow | tx | Persisted invite_codes row carrying owner, code, expiry, and consumption state. |
Internal data flow
Errors
| Name | When | Means |
|---|---|---|
| ErrCollision | Unique constraint on code repeatedly violated. | Surface 503 after retry budget exhausted. |