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The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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maltebucksch

@Test
public void testAddNote() {
    // press “add note” button
    onView(withId(R.id.addNote)).perform(click());
    // type “Espresso rules” as the note content
    onView(withId(R.id.noteContent)).perform(typeText("Espresso rules"));
    // press “ok/save” button
    onView(withId(R.id.ok)).perform(click());
    // check if note-list contains note with the text “Espresso rules"
    onView(withText("Espresso rules")).check(matches(isDisplayed()));

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func test_TeamIsAwesome() {
        let quickBirdTeamMembers = fetchTeamMembers()

        let awesomeTeamMembers = quickBirdTeamMembers.filter { teamMember in
            teamMember.isPassionate &&
            teamMember.isFriendly &&
            teamMember.isConstantlyImproving
        }

        XCTAssertEqual(quickBirdTeamMembers.count, awesomeTeamMembers.count)

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fun testTeamIsAwesome() {
      val quickBirdTeamMembers = fetchTeamMembers()
  
      val awesomeTeamMembers = quickBirdTeamMembers.filter { teamMember ->
            teamMember.isPassionate &&
            teamMember.isFriendly &&
            teamMember.isConstantlyImproving
      }

      assertEquals(quickBirdTeamMembers.size, awesomeTeamMembers.size)

maltebucksch

class User: Object {
    @objc dynamic var id: Int = 0
    @objc dynamic var username: String = ""
    @objc dynamic var updatedDate: Date = Date()

    override static func primaryKey() -> String? {
        return "id"
    }
} 

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protocol Uploadable: Decodable {
    var resourceURL: URL { get }
}

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class User: Object, Uploadable {
    @objc dynamic var id: Int = 0
    @objc dynamic var username: String = ""
    @objc dynamic var updatedDate: Date = Date()

    override static func primaryKey() -> String? {
        return "id"
    }

    var resourceURL: URL {

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extension Uploadable where Self: Object {

    func getId() -> String {
        guard let primaryKey = type(of: self).primaryKey() else {
            fatalError("Object can't be managed without a primary key")
        }

        guard let id = self.value(forKey: primaryKey) else {
            fatalError("Objects primary key isn't set")
        }

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typealias Syncable = Object & Uploadable 

struct Update {
    let insertions: [Syncable]
    let modifications: [Syncable]
    let deletedIds: [String]
    let type: Syncable.Type
}

extension Uploadable where Self: Object {

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syncService = SyncService(modelTypes: [User.self])