From f2c04c558bd61adc01f12d461b687cf64381c1fe Mon Sep 17 00:00:00 2001
From: Gaston Thea <gaston.thea@split.io>
Date: Tue, 7 Nov 2023 12:57:41 -0300
Subject: [PATCH 1/6] iOS evaluation methods & config

---
 .../SplitClientConfigHelperTests.swift        | 27 +++++-
 .../SplitTests/SplitMethodParserTests.swift   | 38 ++++++++
 .../example/ios/SplitTests/SplitTests.swift   | 93 +++++++++++++++----
 .../ios/Classes/SplitClientConfigHelper.swift | 18 +++-
 splitio_ios/ios/Classes/SplitWrapper.swift    | 40 ++++++++
 splitio_ios/ios/splitio_ios.podspec           |  4 +-
 6 files changed, 195 insertions(+), 25 deletions(-)

diff --git a/splitio_ios/example/ios/SplitTests/SplitClientConfigHelperTests.swift b/splitio_ios/example/ios/SplitTests/SplitClientConfigHelperTests.swift
index e107644..339e629 100644
--- a/splitio_ios/example/ios/SplitTests/SplitClientConfigHelperTests.swift
+++ b/splitio_ios/example/ios/SplitTests/SplitClientConfigHelperTests.swift
@@ -21,7 +21,6 @@ class SplitClientConfigHelperTests: XCTestCase {
             "ready": 25,
             "streamingEnabled": true,
             "persistentAttributesEnabled": true,
-            "syncConfig": ["syncConfigNames": ["split1", "split2"], "syncConfigPrefixes": ["split_", "my_split_"]],
             "impressionsMode": "none",
             "syncEnabled": false,
             "userConsent": "declined",
@@ -89,4 +88,30 @@ class SplitClientConfigHelperTests: XCTestCase {
             XCTAssertEqual(expectedImpressionsModes[index].rawValue, config.impressionsMode)
         }
     }
+
+    func testSyncConfigWithoutFlagSetsIsMappedCorrectly() {
+        let configValues = [
+            "syncConfig": ["syncConfigNames": ["split1", "split2"], "syncConfigPrefixes": ["split_", "my_split_"]],
+        ]
+
+        let splitClientConfig: SplitClientConfig = SplitClientConfigHelper.fromMap(configurationMap: configValues, impressionListener: nil)
+
+        XCTAssertEqual(2, splitClientConfig.sync.filters.count)
+        XCTAssertEqual(.byName, splitClientConfig.sync.filters[0].type)
+        XCTAssertEqual(["split1", "split2"], splitClientConfig.sync.filters[0].values)
+        XCTAssertEqual(.byPrefix, splitClientConfig.sync.filters[1].type)
+        XCTAssertEqual(["split_", "my_split_"], splitClientConfig.sync.filters[1].values)
+    }
+
+    func testSyncConfigWithFlagSetsIsMappedCorrectly() {
+        let configValues = [
+            "syncConfig": ["syncConfigNames": ["split1", "split2"], "syncConfigPrefixes": ["split_", "my_split_"] , "syncConfigFlagSets": ["set_1", "set_2"]],
+        ]
+
+        let splitClientConfig: SplitClientConfig = SplitClientConfigHelper.fromMap(configurationMap: configValues, impressionListener: nil)
+
+        XCTAssertEqual(1, splitClientConfig.sync.filters.count)
+        XCTAssertEqual(.bySet, splitClientConfig.sync.filters[0].type)
+        XCTAssertEqual(["set_1", "set_2"], splitClientConfig.sync.filters[0].values)
+    }
 }
diff --git a/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift b/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift
index e2d96a2..61243b9 100644
--- a/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift
+++ b/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift
@@ -328,6 +328,8 @@ class SplitWrapperStub: SplitWrapper {
     var matchingKeyValue = ""
     var bucketingKeyValue: String?
     var splitNameValue = ""
+    var flagSetValue = ""
+    var flagSetsValue: [String] = []
     var splitsValue: [String]?
     var attributesValue: [String: Any]?
     var eventTypeValue: String = ""
@@ -389,6 +391,42 @@ class SplitWrapperStub: SplitWrapper {
         return result
     }
 
+    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String : Any]?) -> [String : String]? {
+        matchingKeyValue = matchingKey
+        bucketingKeyValue = bucketingKey
+        flagSetValue = flagSet
+        attributeValue = attributes
+
+        return [:]
+    }
+
+    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String : Any]?) -> [String : String]? {
+        matchingKeyValue = matchingKey
+        bucketingKeyValue = bucketingKey
+        flagSetsValue = flagSets
+        attributeValue = attributes
+
+        return [:]
+    }
+
+    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String : Any]?) -> [String : SplitResult]? {
+        matchingKeyValue = matchingKey
+        bucketingKeyValue = bucketingKey
+        flagSetValue = flagSet
+        attributeValue = attributes
+
+        return [:]
+    }
+
+    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String : Any]?) -> [String : SplitResult]? {
+        matchingKeyValue = matchingKey
+        bucketingKeyValue = bucketingKey
+        flagSetsValue = flagSets
+        attributeValue = attributes
+
+        return [:]
+    }
+
     func track(matchingKey: String, bucketingKey: String?, eventType: String, trafficType: String?, value: Double?, properties: [String: Any]) -> Bool {
         matchingKeyValue = matchingKey
         bucketingKeyValue = bucketingKey
diff --git a/splitio_ios/example/ios/SplitTests/SplitTests.swift b/splitio_ios/example/ios/SplitTests/SplitTests.swift
index e4c02ad..c01d314 100644
--- a/splitio_ios/example/ios/SplitTests/SplitTests.swift
+++ b/splitio_ios/example/ios/SplitTests/SplitTests.swift
@@ -18,7 +18,7 @@ class SplitTests: XCTestCase {
         splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
         let treatment = splitWrapper.getTreatment(matchingKey: "key", splitName: "split", bucketingKey: "bucketing", attributes: nil)
         XCTAssert(treatment != nil)
-        XCTAssert(client.getTreatmentCalled)
+        XCTAssert(client.methodCalls["getTreatment"] == true)
     }
 
     func testGetTreatments() {
@@ -27,7 +27,7 @@ class SplitTests: XCTestCase {
         splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
         let treatment = splitWrapper.getTreatments(matchingKey: "key", splits: ["split"], bucketingKey: "bucketing", attributes: nil)
         XCTAssert(!treatment.isEmpty)
-        XCTAssert(client.getTreatmentsCalled)
+        XCTAssert(client.methodCalls["getTreatments"] == true)
     }
 
     func testGetTreatmentWithConfig() {
@@ -36,7 +36,7 @@ class SplitTests: XCTestCase {
         splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
         let treatment = splitWrapper.getTreatmentWithConfig(matchingKey: "key", splitName: "split", bucketingKey: "bucketing", attributes: nil)
         XCTAssert(treatment != nil)
-        XCTAssert(client.getTreatmentWithConfigCalled)
+        XCTAssert(client.methodCalls["getTreatmentWithConfig"] == true)
     }
 
     func testGetTreatmentsWithConfig() {
@@ -45,7 +45,40 @@ class SplitTests: XCTestCase {
         splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
         let treatment = splitWrapper.getTreatmentsWithConfig(matchingKey: "key", splits: ["split"], bucketingKey: "bucketing", attributes: nil)
         XCTAssert(!treatment.isEmpty)
-        XCTAssert(client.getTreatmentsWithConfigCalled)
+        XCTAssert(client.methodCalls["getTreatmentsWithConfig"] == true)
+    }
+
+    func testGetTreatmentsByFlagSet() {
+        let client = SplitClientStub()
+        splitWrapper = DefaultSplitWrapper(splitFactoryProvider: SplitFactoryProviderStubWithClient(client: client))
+        splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
+        let treatment = splitWrapper.getTreatmentsByFlagSet(matchingKey: "key", flagSet: "set_1", bucketingKey: "bucketing", attributes: nil)
+        XCTAssert(client.methodCalls["getTreatmentsByFlagSet"] == true)
+    }
+
+    func testGetTreatmentsByFlagSets() {
+        let client = SplitClientStub()
+        splitWrapper = DefaultSplitWrapper(splitFactoryProvider: SplitFactoryProviderStubWithClient(client: client))
+        splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
+        let treatment = splitWrapper.getTreatmentsByFlagSets(matchingKey: "key", flagSets: ["set_1"], bucketingKey: "bucketing", attributes: nil)
+        XCTAssert(client.methodCalls["getTreatmentsByFlagSets"] == true)
+    }
+
+    func testGetTreatmentsWithConfigByFlagSet() {
+        let client = SplitClientStub()
+        splitWrapper = DefaultSplitWrapper(splitFactoryProvider: SplitFactoryProviderStubWithClient(client: client))
+        splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
+        let treatment = splitWrapper.getTreatmentsWithConfigByFlagSet(matchingKey: "key", flagSet: "set_1", bucketingKey: "bucketing", attributes: nil)
+        XCTAssert(client.methodCalls["getTreatmentsWithConfigByFlagSet"] == true)
+    }
+
+    func testGetTreatmentsWithConfigByFlagSets() {
+        let client = SplitClientStub()
+        splitWrapper = DefaultSplitWrapper(splitFactoryProvider: SplitFactoryProviderStubWithClient(client: client))
+        splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
+        let treatment = splitWrapper.getTreatmentsWithConfigByFlagSets(matchingKey: "key", flagSets: ["set_1"], bucketingKey: "bucketing", attributes: nil)
+
+        XCTAssert(client.methodCalls["getTreatmentsWithConfigByFlagSets"] == true)
     }
 
     func testTrack() {
@@ -146,7 +179,7 @@ class SplitTests: XCTestCase {
         usedKeys.insert(Key(matchingKey: "key", bucketingKey: "bucketing"))
         splitWrapper = DefaultSplitWrapper(splitFactoryProvider: SplitFactoryProviderStubWithClient(client: client), usedKeys: usedKeys)
         splitWrapper.flush(matchingKey: "key", bucketingKey: "bucketing")
-        XCTAssert(client.flushCalled)
+        XCTAssert((client.methodCalls["flush"] != nil))
     }
 
     func testDestroy() {
@@ -303,11 +336,17 @@ class SplitFactoryStub: SplitFactory {
 class SplitClientStub: SplitClient {
 
     var destroyCalled: Bool = false
-    var getTreatmentCalled: Bool = false
-    var getTreatmentWithConfigCalled: Bool = false
-    var getTreatmentsCalled: Bool = false
-    var getTreatmentsWithConfigCalled: Bool = false
-    var flushCalled: Bool = false
+    var methodCalls = [
+        "getTreatment": false,
+        "getTreatmentWithConfig": false,
+        "getTreatments": false,
+        "getTreatmentsWithConfig": false,
+        "getTreatmentsByFlagSet": false,
+        "getTreatmentsByFlagSets": false,
+        "getTreatmentsWithConfigByFlagSet": false,
+        "getTreatmentsWithConfigByFlagSets": false,
+        "flush": false,
+    ]
     var eventTypeValue: String = ""
     var trafficTypeValue: String?
     var valueValue: Double?
@@ -319,35 +358,55 @@ class SplitClientStub: SplitClient {
     var sdkReadyEventAction: SplitAction?
 
     func getTreatment(_ split: String, attributes: [String: Any]?) -> String {
-        getTreatmentCalled = true
+        methodCalls["getTreatment"] = true
         return SplitConstants.control
     }
 
     func getTreatment(_ split: String) -> String {
-        getTreatmentCalled = true
+        methodCalls["getTreatment"] = true
         return SplitConstants.control
     }
 
     func getTreatments(splits: [String], attributes: [String: Any]?) -> [String: String] {
-        getTreatmentsCalled = true
+        methodCalls["getTreatments"] = true
         return ["feature": SplitConstants.control]
     }
 
     func getTreatmentWithConfig(_ split: String) -> SplitResult {
-        getTreatmentWithConfigCalled = true
+        methodCalls["getTreatmentWithConfig"] = true
         return SplitResult(treatment: SplitConstants.control)
     }
 
     func getTreatmentWithConfig(_ split: String, attributes: [String: Any]?) -> SplitResult {
-        getTreatmentWithConfigCalled = true
+        methodCalls["getTreatmentWithConfig"] = true
         return SplitResult(treatment: SplitConstants.control)
     }
 
     func getTreatmentsWithConfig(splits: [String], attributes: [String: Any]?) -> [String: SplitResult] {
-        getTreatmentsWithConfigCalled = true
+        methodCalls["getTreatmentsWithConfig"] = true
         return ["feature": SplitResult(treatment: SplitConstants.control)]
     }
 
+    func getTreatmentsByFlagSet(_ flagSet: String, attributes: [String : Any]?) -> [String : String] {
+        methodCalls["getTreatmentsByFlagSet"] = true
+        return [:]
+    }
+
+    func getTreatmentsByFlagSets(_ flagSets: [String], attributes: [String : Any]?) -> [String : String] {
+        methodCalls["getTreatmentsByFlagSets"] = true
+        return [:]
+    }
+
+    func getTreatmentsWithConfigByFlagSet(_ flagSet: String, attributes: [String : Any]?) -> [String : SplitResult] {
+        methodCalls["getTreatmentsWithConfigByFlagSet"] = true
+        return [:]
+    }
+
+    func getTreatmentsWithConfigByFlagSets(_ flagSets: [String], attributes: [String : Any]?) -> [String : SplitResult] {
+        methodCalls["getTreatmentsWithConfigByFlagSets"] = true
+        return [:]
+    }
+
     func on(event: SplitEvent, execute action: @escaping SplitAction) {
         if event == SplitEvent.sdkReady {
             sdkReadyEventAction = action
@@ -430,7 +489,7 @@ class SplitClientStub: SplitClient {
     }
 
     func flush() {
-        flushCalled = true
+        methodCalls["flush"] = true
     }
 
     func destroy() {
diff --git a/splitio_ios/ios/Classes/SplitClientConfigHelper.swift b/splitio_ios/ios/Classes/SplitClientConfigHelper.swift
index 2febd19..feaaa5d 100644
--- a/splitio_ios/ios/Classes/SplitClientConfigHelper.swift
+++ b/splitio_ios/ios/Classes/SplitClientConfigHelper.swift
@@ -24,6 +24,7 @@ class SplitClientConfigHelper {
     static private let SYNC_CONFIG = "syncConfig"
     static private let SYNC_CONFIG_NAMES = "syncConfigNames"
     static private let SYNC_CONFIG_PREFIXES = "syncConfigPrefixes"
+    static private let SYNC_CONFIG_SETS = "syncConfigFlagSets"
     static private let IMPRESSIONS_MODE = "impressionsMode"
     static private let SYNC_ENABLED = "syncEnabled"
     static private let USER_CONSENT = "userConsent"
@@ -149,12 +150,19 @@ class SplitClientConfigHelper {
         if configurationMap[SYNC_CONFIG] != nil {
             if let syncConfig = configurationMap[SYNC_CONFIG] as? [String: [String]] {
                 let syncConfigBuilder = SyncConfig.builder()
-                if let syncNames = syncConfig[SYNC_CONFIG_NAMES] as? [String] {
-                    syncConfigBuilder.addSplitFilter(SplitFilter.byName(syncNames))
-                }
 
-                if let syncPrefixes = syncConfig[SYNC_CONFIG_NAMES] as? [String] {
-                    syncConfigBuilder.addSplitFilter(SplitFilter.byPrefix(syncPrefixes))
+                if (syncConfig[SYNC_CONFIG_SETS] != nil && syncConfig[SYNC_CONFIG_SETS]?.isEmpty == false) {
+                    if let syncFlagSets = syncConfig[SYNC_CONFIG_SETS] as? [String] {
+                        syncConfigBuilder.addSplitFilter(SplitFilter.bySet(syncFlagSets))
+                    }
+                } else {
+                    if let syncNames = syncConfig[SYNC_CONFIG_NAMES] as? [String] {
+                        syncConfigBuilder.addSplitFilter(SplitFilter.byName(syncNames))
+                    }
+
+                    if let syncPrefixes = syncConfig[SYNC_CONFIG_PREFIXES] as? [String] {
+                        syncConfigBuilder.addSplitFilter(SplitFilter.byPrefix(syncPrefixes))
+                    }
                 }
 
                 config.sync = syncConfigBuilder.build()
diff --git a/splitio_ios/ios/Classes/SplitWrapper.swift b/splitio_ios/ios/Classes/SplitWrapper.swift
index 69e764f..924ed4b 100644
--- a/splitio_ios/ios/Classes/SplitWrapper.swift
+++ b/splitio_ios/ios/Classes/SplitWrapper.swift
@@ -31,6 +31,14 @@ protocol EvaluationWrapper {
     func getTreatmentWithConfig(matchingKey: String, splitName: String, bucketingKey: String?, attributes: [String: Any]?) -> SplitResult?
 
     func getTreatmentsWithConfig(matchingKey: String, splits: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]
+
+    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String: Any]?) -> [String: String]?
+
+    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: String]?
+
+    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]?
+
+    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]?
 }
 
 protocol AttributesWrapper {
@@ -121,6 +129,38 @@ class DefaultSplitWrapper: SplitWrapper {
         return client.getTreatmentsWithConfig(splits: splits, attributes: attributes)
     }
 
+    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: String]? {
+        guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
+            return nil
+        }
+
+        return client.getTreatmentsByFlagSet(flagSet, attributes: attributes)
+    }
+
+    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: String]? {
+        guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
+            return nil
+        }
+
+        return client.getTreatmentsByFlagSets(flagSets, attributes: attributes)
+    }
+
+    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: SplitResult]? {
+        guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
+            return nil
+        }
+
+        return client.getTreatmentsWithConfigByFlagSet(flagSet, attributes: attributes)
+    }
+
+    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: SplitResult]? {
+        guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
+            return nil
+        }
+
+        return client.getTreatmentsWithConfigByFlagSets(flagSets, attributes: attributes)
+    }
+
     func track(matchingKey: String, bucketingKey: String?, eventType: String, trafficType: String?, value: Double?, properties: [String: Any]) -> Bool {
         guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
             return false
diff --git a/splitio_ios/ios/splitio_ios.podspec b/splitio_ios/ios/splitio_ios.podspec
index 61453f6..7371662 100644
--- a/splitio_ios/ios/splitio_ios.podspec
+++ b/splitio_ios/ios/splitio_ios.podspec
@@ -4,7 +4,7 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'splitio_ios'
-  s.version          = '0.3.0'
+  s.version          = '0.4.0'
   s.summary          = 'split.io official Flutter plugin.'
   s.description      = <<-DESC
 split.io official Flutter plugin.
@@ -15,7 +15,7 @@ split.io official Flutter plugin.
   s.source           = { :path => '.' }
   s.source_files = 'Classes/**/*'
   s.dependency 'Flutter'
-  s.dependency 'Split', '~> 2.21.0'
+  s.dependency 'Split', '~> 2.23.0'
   s.platform = :ios, '9.0'
 
   # Flutter.framework does not contain a i386 slice.

From 53025dfc7cfd8bb623af9003b9c4bff797e649c9 Mon Sep 17 00:00:00 2001
From: Gaston Thea <gaston.thea@split.io>
Date: Tue, 7 Nov 2023 13:34:06 -0300
Subject: [PATCH 2/6] Podfile

---
 splitio_ios/example/ios/Podfile      |  2 +-
 splitio_ios/example/ios/Podfile.lock | 12 ++++++------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/splitio_ios/example/ios/Podfile b/splitio_ios/example/ios/Podfile
index e3a7db2..8629561 100644
--- a/splitio_ios/example/ios/Podfile
+++ b/splitio_ios/example/ios/Podfile
@@ -1,5 +1,5 @@
 # Uncomment this line to define a global platform for your project
-platform :ios, '11.0'
+platform :ios, '12.0'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'
diff --git a/splitio_ios/example/ios/Podfile.lock b/splitio_ios/example/ios/Podfile.lock
index 1040a02..6f6ec46 100644
--- a/splitio_ios/example/ios/Podfile.lock
+++ b/splitio_ios/example/ios/Podfile.lock
@@ -1,9 +1,9 @@
 PODS:
   - Flutter (1.0.0)
-  - Split (2.21.0)
-  - splitio_ios (0.3.0):
+  - Split (2.23.0)
+  - splitio_ios (0.4.0):
     - Flutter
-    - Split (~> 2.21.0)
+    - Split (~> 2.23.0)
 
 DEPENDENCIES:
   - Flutter (from `Flutter`)
@@ -21,9 +21,9 @@ EXTERNAL SOURCES:
 
 SPEC CHECKSUMS:
   Flutter: f04841e97a9d0b0a8025694d0796dd46242b2854
-  Split: e4324a8fe3fcb19c36a9e4fd84a893fc6d4bbeb0
-  splitio_ios: 8293cb4e46661f9403f92a0d143c5bf6ad5053d4
+  Split: 8140864905cd12cb66e2cf31e6ba9052d09c086b
+  splitio_ios: 1c1d7cd88e6756b3b40cf37cdf8610b8720164b0
 
-PODFILE CHECKSUM: 9eb4e99975f80022b373afce31dc8b3feb22df78
+PODFILE CHECKSUM: aed42fc5c94ade572556b7ed357c5c57f1bd83a2
 
 COCOAPODS: 1.11.3

From 42d767765b76958385b114d145ff617ba4af0f3b Mon Sep 17 00:00:00 2001
From: Gaston Thea <gaston.thea@split.io>
Date: Tue, 7 Nov 2023 12:57:41 -0300
Subject: [PATCH 3/6] iOS evaluation methods & config

---
 .../SplitClientConfigHelperTests.swift        | 27 +++++-
 .../SplitTests/SplitMethodParserTests.swift   | 38 ++++++++
 .../example/ios/SplitTests/SplitTests.swift   | 93 +++++++++++++++----
 .../ios/Classes/SplitClientConfigHelper.swift | 18 +++-
 splitio_ios/ios/Classes/SplitWrapper.swift    | 40 ++++++++
 splitio_ios/ios/splitio_ios.podspec           |  4 +-
 6 files changed, 195 insertions(+), 25 deletions(-)

diff --git a/splitio_ios/example/ios/SplitTests/SplitClientConfigHelperTests.swift b/splitio_ios/example/ios/SplitTests/SplitClientConfigHelperTests.swift
index e107644..339e629 100644
--- a/splitio_ios/example/ios/SplitTests/SplitClientConfigHelperTests.swift
+++ b/splitio_ios/example/ios/SplitTests/SplitClientConfigHelperTests.swift
@@ -21,7 +21,6 @@ class SplitClientConfigHelperTests: XCTestCase {
             "ready": 25,
             "streamingEnabled": true,
             "persistentAttributesEnabled": true,
-            "syncConfig": ["syncConfigNames": ["split1", "split2"], "syncConfigPrefixes": ["split_", "my_split_"]],
             "impressionsMode": "none",
             "syncEnabled": false,
             "userConsent": "declined",
@@ -89,4 +88,30 @@ class SplitClientConfigHelperTests: XCTestCase {
             XCTAssertEqual(expectedImpressionsModes[index].rawValue, config.impressionsMode)
         }
     }
+
+    func testSyncConfigWithoutFlagSetsIsMappedCorrectly() {
+        let configValues = [
+            "syncConfig": ["syncConfigNames": ["split1", "split2"], "syncConfigPrefixes": ["split_", "my_split_"]],
+        ]
+
+        let splitClientConfig: SplitClientConfig = SplitClientConfigHelper.fromMap(configurationMap: configValues, impressionListener: nil)
+
+        XCTAssertEqual(2, splitClientConfig.sync.filters.count)
+        XCTAssertEqual(.byName, splitClientConfig.sync.filters[0].type)
+        XCTAssertEqual(["split1", "split2"], splitClientConfig.sync.filters[0].values)
+        XCTAssertEqual(.byPrefix, splitClientConfig.sync.filters[1].type)
+        XCTAssertEqual(["split_", "my_split_"], splitClientConfig.sync.filters[1].values)
+    }
+
+    func testSyncConfigWithFlagSetsIsMappedCorrectly() {
+        let configValues = [
+            "syncConfig": ["syncConfigNames": ["split1", "split2"], "syncConfigPrefixes": ["split_", "my_split_"] , "syncConfigFlagSets": ["set_1", "set_2"]],
+        ]
+
+        let splitClientConfig: SplitClientConfig = SplitClientConfigHelper.fromMap(configurationMap: configValues, impressionListener: nil)
+
+        XCTAssertEqual(1, splitClientConfig.sync.filters.count)
+        XCTAssertEqual(.bySet, splitClientConfig.sync.filters[0].type)
+        XCTAssertEqual(["set_1", "set_2"], splitClientConfig.sync.filters[0].values)
+    }
 }
diff --git a/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift b/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift
index e2d96a2..61243b9 100644
--- a/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift
+++ b/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift
@@ -328,6 +328,8 @@ class SplitWrapperStub: SplitWrapper {
     var matchingKeyValue = ""
     var bucketingKeyValue: String?
     var splitNameValue = ""
+    var flagSetValue = ""
+    var flagSetsValue: [String] = []
     var splitsValue: [String]?
     var attributesValue: [String: Any]?
     var eventTypeValue: String = ""
@@ -389,6 +391,42 @@ class SplitWrapperStub: SplitWrapper {
         return result
     }
 
+    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String : Any]?) -> [String : String]? {
+        matchingKeyValue = matchingKey
+        bucketingKeyValue = bucketingKey
+        flagSetValue = flagSet
+        attributeValue = attributes
+
+        return [:]
+    }
+
+    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String : Any]?) -> [String : String]? {
+        matchingKeyValue = matchingKey
+        bucketingKeyValue = bucketingKey
+        flagSetsValue = flagSets
+        attributeValue = attributes
+
+        return [:]
+    }
+
+    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String : Any]?) -> [String : SplitResult]? {
+        matchingKeyValue = matchingKey
+        bucketingKeyValue = bucketingKey
+        flagSetValue = flagSet
+        attributeValue = attributes
+
+        return [:]
+    }
+
+    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String : Any]?) -> [String : SplitResult]? {
+        matchingKeyValue = matchingKey
+        bucketingKeyValue = bucketingKey
+        flagSetsValue = flagSets
+        attributeValue = attributes
+
+        return [:]
+    }
+
     func track(matchingKey: String, bucketingKey: String?, eventType: String, trafficType: String?, value: Double?, properties: [String: Any]) -> Bool {
         matchingKeyValue = matchingKey
         bucketingKeyValue = bucketingKey
diff --git a/splitio_ios/example/ios/SplitTests/SplitTests.swift b/splitio_ios/example/ios/SplitTests/SplitTests.swift
index e4c02ad..c01d314 100644
--- a/splitio_ios/example/ios/SplitTests/SplitTests.swift
+++ b/splitio_ios/example/ios/SplitTests/SplitTests.swift
@@ -18,7 +18,7 @@ class SplitTests: XCTestCase {
         splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
         let treatment = splitWrapper.getTreatment(matchingKey: "key", splitName: "split", bucketingKey: "bucketing", attributes: nil)
         XCTAssert(treatment != nil)
-        XCTAssert(client.getTreatmentCalled)
+        XCTAssert(client.methodCalls["getTreatment"] == true)
     }
 
     func testGetTreatments() {
@@ -27,7 +27,7 @@ class SplitTests: XCTestCase {
         splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
         let treatment = splitWrapper.getTreatments(matchingKey: "key", splits: ["split"], bucketingKey: "bucketing", attributes: nil)
         XCTAssert(!treatment.isEmpty)
-        XCTAssert(client.getTreatmentsCalled)
+        XCTAssert(client.methodCalls["getTreatments"] == true)
     }
 
     func testGetTreatmentWithConfig() {
@@ -36,7 +36,7 @@ class SplitTests: XCTestCase {
         splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
         let treatment = splitWrapper.getTreatmentWithConfig(matchingKey: "key", splitName: "split", bucketingKey: "bucketing", attributes: nil)
         XCTAssert(treatment != nil)
-        XCTAssert(client.getTreatmentWithConfigCalled)
+        XCTAssert(client.methodCalls["getTreatmentWithConfig"] == true)
     }
 
     func testGetTreatmentsWithConfig() {
@@ -45,7 +45,40 @@ class SplitTests: XCTestCase {
         splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
         let treatment = splitWrapper.getTreatmentsWithConfig(matchingKey: "key", splits: ["split"], bucketingKey: "bucketing", attributes: nil)
         XCTAssert(!treatment.isEmpty)
-        XCTAssert(client.getTreatmentsWithConfigCalled)
+        XCTAssert(client.methodCalls["getTreatmentsWithConfig"] == true)
+    }
+
+    func testGetTreatmentsByFlagSet() {
+        let client = SplitClientStub()
+        splitWrapper = DefaultSplitWrapper(splitFactoryProvider: SplitFactoryProviderStubWithClient(client: client))
+        splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
+        let treatment = splitWrapper.getTreatmentsByFlagSet(matchingKey: "key", flagSet: "set_1", bucketingKey: "bucketing", attributes: nil)
+        XCTAssert(client.methodCalls["getTreatmentsByFlagSet"] == true)
+    }
+
+    func testGetTreatmentsByFlagSets() {
+        let client = SplitClientStub()
+        splitWrapper = DefaultSplitWrapper(splitFactoryProvider: SplitFactoryProviderStubWithClient(client: client))
+        splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
+        let treatment = splitWrapper.getTreatmentsByFlagSets(matchingKey: "key", flagSets: ["set_1"], bucketingKey: "bucketing", attributes: nil)
+        XCTAssert(client.methodCalls["getTreatmentsByFlagSets"] == true)
+    }
+
+    func testGetTreatmentsWithConfigByFlagSet() {
+        let client = SplitClientStub()
+        splitWrapper = DefaultSplitWrapper(splitFactoryProvider: SplitFactoryProviderStubWithClient(client: client))
+        splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
+        let treatment = splitWrapper.getTreatmentsWithConfigByFlagSet(matchingKey: "key", flagSet: "set_1", bucketingKey: "bucketing", attributes: nil)
+        XCTAssert(client.methodCalls["getTreatmentsWithConfigByFlagSet"] == true)
+    }
+
+    func testGetTreatmentsWithConfigByFlagSets() {
+        let client = SplitClientStub()
+        splitWrapper = DefaultSplitWrapper(splitFactoryProvider: SplitFactoryProviderStubWithClient(client: client))
+        splitWrapper.getClient(matchingKey: "key", bucketingKey: "bucketing")
+        let treatment = splitWrapper.getTreatmentsWithConfigByFlagSets(matchingKey: "key", flagSets: ["set_1"], bucketingKey: "bucketing", attributes: nil)
+
+        XCTAssert(client.methodCalls["getTreatmentsWithConfigByFlagSets"] == true)
     }
 
     func testTrack() {
@@ -146,7 +179,7 @@ class SplitTests: XCTestCase {
         usedKeys.insert(Key(matchingKey: "key", bucketingKey: "bucketing"))
         splitWrapper = DefaultSplitWrapper(splitFactoryProvider: SplitFactoryProviderStubWithClient(client: client), usedKeys: usedKeys)
         splitWrapper.flush(matchingKey: "key", bucketingKey: "bucketing")
-        XCTAssert(client.flushCalled)
+        XCTAssert((client.methodCalls["flush"] != nil))
     }
 
     func testDestroy() {
@@ -303,11 +336,17 @@ class SplitFactoryStub: SplitFactory {
 class SplitClientStub: SplitClient {
 
     var destroyCalled: Bool = false
-    var getTreatmentCalled: Bool = false
-    var getTreatmentWithConfigCalled: Bool = false
-    var getTreatmentsCalled: Bool = false
-    var getTreatmentsWithConfigCalled: Bool = false
-    var flushCalled: Bool = false
+    var methodCalls = [
+        "getTreatment": false,
+        "getTreatmentWithConfig": false,
+        "getTreatments": false,
+        "getTreatmentsWithConfig": false,
+        "getTreatmentsByFlagSet": false,
+        "getTreatmentsByFlagSets": false,
+        "getTreatmentsWithConfigByFlagSet": false,
+        "getTreatmentsWithConfigByFlagSets": false,
+        "flush": false,
+    ]
     var eventTypeValue: String = ""
     var trafficTypeValue: String?
     var valueValue: Double?
@@ -319,35 +358,55 @@ class SplitClientStub: SplitClient {
     var sdkReadyEventAction: SplitAction?
 
     func getTreatment(_ split: String, attributes: [String: Any]?) -> String {
-        getTreatmentCalled = true
+        methodCalls["getTreatment"] = true
         return SplitConstants.control
     }
 
     func getTreatment(_ split: String) -> String {
-        getTreatmentCalled = true
+        methodCalls["getTreatment"] = true
         return SplitConstants.control
     }
 
     func getTreatments(splits: [String], attributes: [String: Any]?) -> [String: String] {
-        getTreatmentsCalled = true
+        methodCalls["getTreatments"] = true
         return ["feature": SplitConstants.control]
     }
 
     func getTreatmentWithConfig(_ split: String) -> SplitResult {
-        getTreatmentWithConfigCalled = true
+        methodCalls["getTreatmentWithConfig"] = true
         return SplitResult(treatment: SplitConstants.control)
     }
 
     func getTreatmentWithConfig(_ split: String, attributes: [String: Any]?) -> SplitResult {
-        getTreatmentWithConfigCalled = true
+        methodCalls["getTreatmentWithConfig"] = true
         return SplitResult(treatment: SplitConstants.control)
     }
 
     func getTreatmentsWithConfig(splits: [String], attributes: [String: Any]?) -> [String: SplitResult] {
-        getTreatmentsWithConfigCalled = true
+        methodCalls["getTreatmentsWithConfig"] = true
         return ["feature": SplitResult(treatment: SplitConstants.control)]
     }
 
+    func getTreatmentsByFlagSet(_ flagSet: String, attributes: [String : Any]?) -> [String : String] {
+        methodCalls["getTreatmentsByFlagSet"] = true
+        return [:]
+    }
+
+    func getTreatmentsByFlagSets(_ flagSets: [String], attributes: [String : Any]?) -> [String : String] {
+        methodCalls["getTreatmentsByFlagSets"] = true
+        return [:]
+    }
+
+    func getTreatmentsWithConfigByFlagSet(_ flagSet: String, attributes: [String : Any]?) -> [String : SplitResult] {
+        methodCalls["getTreatmentsWithConfigByFlagSet"] = true
+        return [:]
+    }
+
+    func getTreatmentsWithConfigByFlagSets(_ flagSets: [String], attributes: [String : Any]?) -> [String : SplitResult] {
+        methodCalls["getTreatmentsWithConfigByFlagSets"] = true
+        return [:]
+    }
+
     func on(event: SplitEvent, execute action: @escaping SplitAction) {
         if event == SplitEvent.sdkReady {
             sdkReadyEventAction = action
@@ -430,7 +489,7 @@ class SplitClientStub: SplitClient {
     }
 
     func flush() {
-        flushCalled = true
+        methodCalls["flush"] = true
     }
 
     func destroy() {
diff --git a/splitio_ios/ios/Classes/SplitClientConfigHelper.swift b/splitio_ios/ios/Classes/SplitClientConfigHelper.swift
index 2febd19..feaaa5d 100644
--- a/splitio_ios/ios/Classes/SplitClientConfigHelper.swift
+++ b/splitio_ios/ios/Classes/SplitClientConfigHelper.swift
@@ -24,6 +24,7 @@ class SplitClientConfigHelper {
     static private let SYNC_CONFIG = "syncConfig"
     static private let SYNC_CONFIG_NAMES = "syncConfigNames"
     static private let SYNC_CONFIG_PREFIXES = "syncConfigPrefixes"
+    static private let SYNC_CONFIG_SETS = "syncConfigFlagSets"
     static private let IMPRESSIONS_MODE = "impressionsMode"
     static private let SYNC_ENABLED = "syncEnabled"
     static private let USER_CONSENT = "userConsent"
@@ -149,12 +150,19 @@ class SplitClientConfigHelper {
         if configurationMap[SYNC_CONFIG] != nil {
             if let syncConfig = configurationMap[SYNC_CONFIG] as? [String: [String]] {
                 let syncConfigBuilder = SyncConfig.builder()
-                if let syncNames = syncConfig[SYNC_CONFIG_NAMES] as? [String] {
-                    syncConfigBuilder.addSplitFilter(SplitFilter.byName(syncNames))
-                }
 
-                if let syncPrefixes = syncConfig[SYNC_CONFIG_NAMES] as? [String] {
-                    syncConfigBuilder.addSplitFilter(SplitFilter.byPrefix(syncPrefixes))
+                if (syncConfig[SYNC_CONFIG_SETS] != nil && syncConfig[SYNC_CONFIG_SETS]?.isEmpty == false) {
+                    if let syncFlagSets = syncConfig[SYNC_CONFIG_SETS] as? [String] {
+                        syncConfigBuilder.addSplitFilter(SplitFilter.bySet(syncFlagSets))
+                    }
+                } else {
+                    if let syncNames = syncConfig[SYNC_CONFIG_NAMES] as? [String] {
+                        syncConfigBuilder.addSplitFilter(SplitFilter.byName(syncNames))
+                    }
+
+                    if let syncPrefixes = syncConfig[SYNC_CONFIG_PREFIXES] as? [String] {
+                        syncConfigBuilder.addSplitFilter(SplitFilter.byPrefix(syncPrefixes))
+                    }
                 }
 
                 config.sync = syncConfigBuilder.build()
diff --git a/splitio_ios/ios/Classes/SplitWrapper.swift b/splitio_ios/ios/Classes/SplitWrapper.swift
index 69e764f..924ed4b 100644
--- a/splitio_ios/ios/Classes/SplitWrapper.swift
+++ b/splitio_ios/ios/Classes/SplitWrapper.swift
@@ -31,6 +31,14 @@ protocol EvaluationWrapper {
     func getTreatmentWithConfig(matchingKey: String, splitName: String, bucketingKey: String?, attributes: [String: Any]?) -> SplitResult?
 
     func getTreatmentsWithConfig(matchingKey: String, splits: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]
+
+    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String: Any]?) -> [String: String]?
+
+    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: String]?
+
+    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]?
+
+    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]?
 }
 
 protocol AttributesWrapper {
@@ -121,6 +129,38 @@ class DefaultSplitWrapper: SplitWrapper {
         return client.getTreatmentsWithConfig(splits: splits, attributes: attributes)
     }
 
+    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: String]? {
+        guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
+            return nil
+        }
+
+        return client.getTreatmentsByFlagSet(flagSet, attributes: attributes)
+    }
+
+    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: String]? {
+        guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
+            return nil
+        }
+
+        return client.getTreatmentsByFlagSets(flagSets, attributes: attributes)
+    }
+
+    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: SplitResult]? {
+        guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
+            return nil
+        }
+
+        return client.getTreatmentsWithConfigByFlagSet(flagSet, attributes: attributes)
+    }
+
+    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: SplitResult]? {
+        guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
+            return nil
+        }
+
+        return client.getTreatmentsWithConfigByFlagSets(flagSets, attributes: attributes)
+    }
+
     func track(matchingKey: String, bucketingKey: String?, eventType: String, trafficType: String?, value: Double?, properties: [String: Any]) -> Bool {
         guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
             return false
diff --git a/splitio_ios/ios/splitio_ios.podspec b/splitio_ios/ios/splitio_ios.podspec
index 61453f6..7371662 100644
--- a/splitio_ios/ios/splitio_ios.podspec
+++ b/splitio_ios/ios/splitio_ios.podspec
@@ -4,7 +4,7 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'splitio_ios'
-  s.version          = '0.3.0'
+  s.version          = '0.4.0'
   s.summary          = 'split.io official Flutter plugin.'
   s.description      = <<-DESC
 split.io official Flutter plugin.
@@ -15,7 +15,7 @@ split.io official Flutter plugin.
   s.source           = { :path => '.' }
   s.source_files = 'Classes/**/*'
   s.dependency 'Flutter'
-  s.dependency 'Split', '~> 2.21.0'
+  s.dependency 'Split', '~> 2.23.0'
   s.platform = :ios, '9.0'
 
   # Flutter.framework does not contain a i386 slice.

From 59ed4fa23be9ef8e5e50f4f8a14a182f41f042f1 Mon Sep 17 00:00:00 2001
From: Gaston Thea <gaston.thea@split.io>
Date: Tue, 7 Nov 2023 13:34:06 -0300
Subject: [PATCH 4/6] Podfile

---
 splitio_ios/example/ios/Podfile      |  2 +-
 splitio_ios/example/ios/Podfile.lock | 12 ++++++------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/splitio_ios/example/ios/Podfile b/splitio_ios/example/ios/Podfile
index e3a7db2..8629561 100644
--- a/splitio_ios/example/ios/Podfile
+++ b/splitio_ios/example/ios/Podfile
@@ -1,5 +1,5 @@
 # Uncomment this line to define a global platform for your project
-platform :ios, '11.0'
+platform :ios, '12.0'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'
diff --git a/splitio_ios/example/ios/Podfile.lock b/splitio_ios/example/ios/Podfile.lock
index 1040a02..6f6ec46 100644
--- a/splitio_ios/example/ios/Podfile.lock
+++ b/splitio_ios/example/ios/Podfile.lock
@@ -1,9 +1,9 @@
 PODS:
   - Flutter (1.0.0)
-  - Split (2.21.0)
-  - splitio_ios (0.3.0):
+  - Split (2.23.0)
+  - splitio_ios (0.4.0):
     - Flutter
-    - Split (~> 2.21.0)
+    - Split (~> 2.23.0)
 
 DEPENDENCIES:
   - Flutter (from `Flutter`)
@@ -21,9 +21,9 @@ EXTERNAL SOURCES:
 
 SPEC CHECKSUMS:
   Flutter: f04841e97a9d0b0a8025694d0796dd46242b2854
-  Split: e4324a8fe3fcb19c36a9e4fd84a893fc6d4bbeb0
-  splitio_ios: 8293cb4e46661f9403f92a0d143c5bf6ad5053d4
+  Split: 8140864905cd12cb66e2cf31e6ba9052d09c086b
+  splitio_ios: 1c1d7cd88e6756b3b40cf37cdf8610b8720164b0
 
-PODFILE CHECKSUM: 9eb4e99975f80022b373afce31dc8b3feb22df78
+PODFILE CHECKSUM: aed42fc5c94ade572556b7ed357c5c57f1bd83a2
 
 COCOAPODS: 1.11.3

From 3a371307b7f1aea06bd797ef839a1dcca9ad6307 Mon Sep 17 00:00:00 2001
From: Gaston Thea <gaston.thea@split.io>
Date: Wed, 8 Nov 2023 15:43:16 -0300
Subject: [PATCH 5/6] Fix

---
 splitio_ios/ios/Classes/SplitWrapper.swift | 24 +++++++++++-----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/splitio_ios/ios/Classes/SplitWrapper.swift b/splitio_ios/ios/Classes/SplitWrapper.swift
index 924ed4b..b25f9d2 100644
--- a/splitio_ios/ios/Classes/SplitWrapper.swift
+++ b/splitio_ios/ios/Classes/SplitWrapper.swift
@@ -32,13 +32,13 @@ protocol EvaluationWrapper {
 
     func getTreatmentsWithConfig(matchingKey: String, splits: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]
 
-    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String: Any]?) -> [String: String]?
+    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String: Any]?) -> [String: String]
 
-    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: String]?
+    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: String]
 
-    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]?
+    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]
 
-    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]?
+    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String: Any]?) -> [String: SplitResult]
 }
 
 protocol AttributesWrapper {
@@ -129,33 +129,33 @@ class DefaultSplitWrapper: SplitWrapper {
         return client.getTreatmentsWithConfig(splits: splits, attributes: attributes)
     }
 
-    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: String]? {
+    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: String] {
         guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
-            return nil
+            return [:]
         }
 
         return client.getTreatmentsByFlagSet(flagSet, attributes: attributes)
     }
 
-    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: String]? {
+    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: String] {
         guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
-            return nil
+            return [:]
         }
 
         return client.getTreatmentsByFlagSets(flagSets, attributes: attributes)
     }
 
-    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: SplitResult]? {
+    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: SplitResult] {
         guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
-            return nil
+            return [:]
         }
 
         return client.getTreatmentsWithConfigByFlagSet(flagSet, attributes: attributes)
     }
 
-    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: SplitResult]? {
+    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String? = nil, attributes: [String: Any]? = [:]) -> [String: SplitResult] {
         guard let client = getInitializedClient(matchingKey: matchingKey, bucketingKey: bucketingKey) else {
-            return nil
+            return [:]
         }
 
         return client.getTreatmentsWithConfigByFlagSets(flagSets, attributes: attributes)

From c4a99de4becba761e472f79988127fe435121eb4 Mon Sep 17 00:00:00 2001
From: Gaston Thea <gaston.thea@split.io>
Date: Wed, 8 Nov 2023 15:59:41 -0300
Subject: [PATCH 6/6] Fix test

---
 .../example/ios/SplitTests/SplitMethodParserTests.swift   | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift b/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift
index 61243b9..826c6f4 100644
--- a/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift
+++ b/splitio_ios/example/ios/SplitTests/SplitMethodParserTests.swift
@@ -391,7 +391,7 @@ class SplitWrapperStub: SplitWrapper {
         return result
     }
 
-    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String : Any]?) -> [String : String]? {
+    func getTreatmentsByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String : Any]?) -> [String : String] {
         matchingKeyValue = matchingKey
         bucketingKeyValue = bucketingKey
         flagSetValue = flagSet
@@ -400,7 +400,7 @@ class SplitWrapperStub: SplitWrapper {
         return [:]
     }
 
-    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String : Any]?) -> [String : String]? {
+    func getTreatmentsByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String : Any]?) -> [String : String] {
         matchingKeyValue = matchingKey
         bucketingKeyValue = bucketingKey
         flagSetsValue = flagSets
@@ -409,7 +409,7 @@ class SplitWrapperStub: SplitWrapper {
         return [:]
     }
 
-    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String : Any]?) -> [String : SplitResult]? {
+    func getTreatmentsWithConfigByFlagSet(matchingKey: String, flagSet: String, bucketingKey: String?, attributes: [String : Any]?) -> [String : SplitResult] {
         matchingKeyValue = matchingKey
         bucketingKeyValue = bucketingKey
         flagSetValue = flagSet
@@ -418,7 +418,7 @@ class SplitWrapperStub: SplitWrapper {
         return [:]
     }
 
-    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String : Any]?) -> [String : SplitResult]? {
+    func getTreatmentsWithConfigByFlagSets(matchingKey: String, flagSets: [String], bucketingKey: String?, attributes: [String : Any]?) -> [String : SplitResult] {
         matchingKeyValue = matchingKey
         bucketingKeyValue = bucketingKey
         flagSetsValue = flagSets