This gist is part of https://github.com/widiarifki/android-playground/tree/master/compose

ShoppingItem.kt

@Entity(tableName = "tbl_shopping_item")
data class ShoppingItem(
    @PrimaryKey(autoGenerate = true)
    val id: Int = 0,
    @ColumnInfo(name = "name")
    var name: String,
    @ColumnInfo(name = "is_ticked")
    var isTicked: Boolean = false
)

ShoppingItemDao.kt

@Dao
interface ShoppingItemDao {

    @Query("SELECT * FROM $TBL_SHOPPING_ITEM")
    fun getAll(): LiveData<List<ShoppingItem>>

    @Insert
    suspend fun insert(item: ShoppingItem)

    @Update
    suspend fun update(item: ShoppingItem)

    @Delete
    suspend fun delete(item: ShoppingItem)
}

ShoppingItemRepository.kt

class ShoppingItemRepository(
    private val shoppingItemDao: ShoppingItemDao = AppDatabase.getInstance().shoppingItemDao()
) {

    val allItems = shoppingItemDao.getAll()

    suspend fun insert(item: ShoppingItem) {
        shoppingItemDao.insert(item)
    }

    suspend fun delete(item: ShoppingItem) {
        shoppingItemDao.delete(item)
    }

    suspend fun update(item: ShoppingItem) {
        shoppingItemDao.update(item)
    }
}