name: portada
class: portada-slide, center, middle

# Realm - Sync

.footnote[Mateu Yábar Valles]

---

# Configuració Atlas
- Anar a App services
- Selecciona template crear una realtime-sync.
- Quan posi "Get the Front-End code for your Template via CLI", tanca el popup.
- Ves a device-sync al menú de l'esquerre.
- A "Define Permissions" pots indicar quines dades podrà legir/escriure cada usuari.

---
# Configuració App

```
val realmApp = App.create("MY-App-Id")
```

```
val realmApp = App.create(AppConfiguration.Builder("MY-App-Id")
.log(LogLevel.ALL)
.build())
```

---
# Registre usuari

```
realmApp.emailPasswordAuth.registerUser(username, password)
```

---
# Login usuari

```
val creds = Credentials.emailPassword(username, password)
realmApp.login(creds)
val user = realmApp.currentUser!!
```

---
# Configuració
```
val config = SyncConfiguration.Builder(user, setOf(Item::class))
    .initialSubscriptions { realm ->
        add(
            realm.query<Item>(),
            "All Items"
        )
//      add(
//          realm.query<Item>("owner_id == $0", realmApp.currentUser!!.id),
//          "User's Items"
//      )
    }
    .waitForInitialRemoteData()
    .build()
println("Realm Path: ${config.path}")
val realm = Realm.open(config)
realm.subscriptions.waitForSynchronization()
```

---
# Insert
```
realm.writeBlocking {
    val item = Item(ownerId = user.id, 
        summary = "Some summary ${Date()}")
    copyToRealm(item)
}
```