Haffa manages high level concepts such as
- persistence and querying of adverts and profiles
- persistence of settings (categories, login policies, api keys...)
- managing password-less authentication flows
- notifying users about intersting state changes
These concepts are caried out by different drivers, from which alternatives can be chosen based on performance requirements, budget etc.
| Feature | Production | QA | Local development | Unit testing |
|---|---|---|---|---|
| Minio | Recommended | Recommended | Situational | Probably never |
| MongoDB | Recommended | Recommended | Situational | Probably never |
| File System | Low budget | Low budget | Situational | Probably never |
| Transactional email notifications | Recommended | Recommended | Situational | Probably never |
| Memory | Never | Situational | Situational | Always |
In runtime, the actual driver is chosen based on environment configuration.
In order of precedence (from top to bottom), the rules are
| Adverts and profiles | Files | Login state | Notifications |
|---|---|---|---|
| MongoDB | MongoDB | ||
| Minio | |||
| File System | File System | ||
| Transactional email notifications | |||
| Memory | Memory | Memory | console |