[Enhancement]Migrate sdk signaling core infra onto stream core swift

DemoApp/Sources/Models/TokenResponse.swift

@@ -3,9 +3,8 @@
 //
 
 import Foundation
-import StreamVideo
 
-struct TokenResponse: Codable, ReflectiveStringConvertible {
+struct TokenResponse: Codable {
     let userId: String
     let token: String
     let apiKey: String

Package.swift

@@ -23,26 +23,42 @@ let package = Package(
     ],
     dependencies: [
         .package(url: "https://github.com/apple/swift-protobuf.git", exact: "1.30.0"),
-        .package(url: "https://github.com/GetStream/stream-video-swift-webrtc.git", exact: "145.8.0")
+        .package(url: "https://github.com/GetStream/stream-video-swift-webrtc.git", exact: "145.8.0"),
+        // Shared low-level SDK. Provides the logger, WebSocket client, error
+        // model, etc. that StreamVideo is migrating onto.
+        .package(url: "https://github.com/GetStream/stream-core-swift.git", branch: "develop")
     ],
     targets: [
         .target(
             name: "StreamVideo",
             dependencies: [
                 .product(name: "SwiftProtobuf", package: "swift-protobuf"),
-                .product(name: "StreamWebRTC", package: "stream-video-swift-webrtc")
+                .product(name: "StreamWebRTC", package: "stream-video-swift-webrtc"),
+                .product(name: "StreamCore", package: "stream-core-swift")
             ]
         ),
         .target(
             name: "StreamVideoSwiftUI",
-            dependencies: ["StreamVideo"],
+            // Links StreamCore directly: StreamVideo's public logger types are
+            // now typealiases to StreamCore's, so this module references
+            // StreamCore symbols (e.g. `LogSubsystem`, `Publisher.log`) at link
+            // time even though it only imports StreamVideo.
+            dependencies: [
+                "StreamVideo",
+                .product(name: "StreamCore", package: "stream-core-swift")
+            ],
             resources: [
                 .process("Resources")
             ]
         ),
         .target(
             name: "StreamVideoUIKit",
-            dependencies: ["StreamVideo", "StreamVideoSwiftUI"]
+            // Links StreamCore for the same reason as StreamVideoSwiftUI.
+            dependencies: [
+                "StreamVideo",
+                "StreamVideoSwiftUI",
+                .product(name: "StreamCore", package: "stream-core-swift")
+            ]
         )
     ]
 )

Sources/StreamVideo/Call.swift

@@ -5,6 +5,7 @@
 import AVFoundation
 import Combine
 import Foundation
+import StreamCore
 import StreamWebRTC
 
 /// Observable object that provides info about the call state, as well as methods for updating it.

Sources/StreamVideo/CallState.swift

@@ -4,6 +4,7 @@
 
 import Combine
 import Foundation
+import StreamCore
 
 @MainActor
 public class CallState: ObservableObject {

Sources/StreamVideo/CallStateMachine/Stages/Call+Stage.swift

@@ -4,6 +4,7 @@
 
 import Combine
 import Foundation
+import StreamCore
 
 extension Call.StateMachine {
     /// Represents a stage in the call state machine.

Sources/StreamVideo/Errors/APIError+ReflectiveStringConvertible.swift

@@ -0,0 +1,7 @@
+//
+// Copyright © 2026 Stream.io Inc. All rights reserved.
+//
+
+import StreamCore
+
+extension APIError: ReflectiveStringConvertible {}

Sources/StreamVideo/Errors/Errors.swift

@@ -3,8 +3,11 @@
 //
 
 import Foundation
+import StreamCore
 
-extension Stream_Video_Sfu_Models_Error: Error, ReflectiveStringConvertible {}
+extension Stream_Video_Sfu_Models_Error:
+    Error,
+    ReflectiveStringConvertible {}
 
 /// A Client error.
 public class ClientError: Error, CustomStringConvertible, @unchecked Sendable {
@@ -22,6 +25,7 @@ public class ClientError: Error, CustomStringConvertible, @unchecked Sendable {
     /// An underlying error.
     public let underlyingError: Error?
 
+    /// The associated API error, if this wraps one.
     public let apiError: APIError?
 
     var errorDescription: String? {
@@ -63,8 +67,19 @@ public class ClientError: Error, CustomStringConvertible, @unchecked Sendable {
         underlyingError = error
         message = error?.localizedDescription ?? nil
         location = .init(file: "\(file)", line: Int(line))
-        if let aErr = error as? APIError {
-            apiError = aErr
+        if let apiError = error as? APIError {
+            self.apiError = apiError
+        } else if let apiError = error as? StreamAPIError {
+            self.apiError = APIError(
+                code: apiError.code,
+                details: apiError.details,
+                duration: apiError.duration,
+                exceptionFields: apiError.exceptionFields,
+                message: apiError.message,
+                moreInfo: apiError.moreInfo,
+                statusCode: apiError.statusCode,
+                unrecoverable: apiError.unrecoverable
+            )
         } else {
             apiError = nil
         }
@@ -115,8 +130,11 @@ extension ClientError: Equatable {
 extension ClientError {
     /// Returns `true` if underlaying error is `ErrorPayload` with code is inside invalid token codes range.
     var isInvalidTokenError: Bool {
-        (underlyingError as? ErrorPayload)?.isInvalidTokenError == true
-            || apiError?.isTokenExpiredError == true
+        if (underlyingError as? ErrorPayload)?.isInvalidTokenError == true {
+            return true
+        }
+        guard let apiError else { return false }
+        return ClosedRange.tokenInvalidErrorCodes.contains(apiError.code)
     }
 }
 
@@ -131,15 +149,18 @@ extension Error {
 }
 
 extension Error {
+    // Casts to `StreamAPIError` (StreamCore's) because that is the type the
+    // transport now throws. Only the stored `code`/`statusCode` are read, so no
+    // `import StreamCore` is required here.
     var isTokenExpiredError: Bool {
-        if let error = self as? APIError, ClosedRange.tokenInvalidErrorCodes ~= error.code {
+        if let error = self as? StreamAPIError, ClosedRange.tokenInvalidErrorCodes ~= error.code {
             return true
         }
         return false
     }
 
     var hasClientErrors: Bool {
-        if let apiError = self as? APIError,
+        if let apiError = self as? StreamAPIError,
            ClosedRange.clientErrorCodes ~= apiError.statusCode {
             return false
         }
@@ -156,7 +177,10 @@ extension ClosedRange where Bound == Int {
 }
 
 struct APIErrorContainer: Codable {
-    let error: APIError
+    // Decodes the server error envelope directly into `StreamAPIError`
+    // (identical `CodingKeys` to video's `APIError`), so WebSocket-surfaced API
+    // errors converge on StreamCore's type too.
+    let error: StreamAPIError
 }
 
 extension APIError: Error {}

Sources/StreamVideo/Errors/StreamAPIError.swift

@@ -0,0 +1,23 @@
+//
+// Copyright © 2026 Stream.io Inc. All rights reserved.
+//
+
+import Foundation
+import StreamCore
+
+/// StreamVideo-facing name for StreamCore's `APIError`.
+///
+/// This is the canonical API error type for hand-written code; the generated
+/// OpenAPI layer keeps its own `APIError`. A distinct alias name is required
+/// because the generated `APIError` already occupies the bare name in this
+/// module, and referencing `StreamCore.APIError` directly would force
+/// `import StreamCore` (which reintroduces `log`/`ClientError`/`APIError`
+/// ambiguities) in every consumer. Only stored properties (`code`,
+/// `statusCode`, `message`, `unrecoverable`) are read through it, so no import
+/// is needed at the use sites.
+///
+/// - TODO: [StreamCore migration] This alias (and the split between hand-written
+///   `StreamAPIError` and the generated `APIError`) goes away once the OpenAPI
+///   generator is changed to emit `APIError` as `StreamCore.APIError`. Then the
+///   whole app uses one API error type and this file can be deleted.
+public typealias StreamAPIError = StreamCore.APIError

Sources/StreamVideo/HTTPClient/HTTPUtils.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 extension URLRequest {
     var queryItems: [URLQueryItem] {

Sources/StreamVideo/Models/CallsQuery.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 /// Defines a query to retrieve a list of calls from the server, with specified page size, sort parameters,
 /// filters and watch flag.

Sources/StreamVideo/Models/CoordinatorModels.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public struct FetchingLocationError: Error {}
 

Sources/StreamVideo/Models/Member.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 /// Represents a member in the call.
 public struct Member: Identifiable, Equatable, Sendable, Codable {

Sources/StreamVideo/Models/User.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 /// Model for the user's info.
 public struct User: Identifiable, Hashable, Sendable, Codable {

Sources/StreamVideo/OpenApi/URLSessionTransport.swift

@@ -108,7 +108,10 @@ final class URLSessionTransport: DefaultAPITransport, @unchecked Sendable {
         }
 
         do {
-            return try JSONDecoder.default.decode(APIError.self, from: data)
+            // Decode server errors into `StreamAPIError` (StreamCore's, identical
+            // `CodingKeys`) so every thrown API error downstream is StreamCore's
+            // type. The generated OpenAPI layer keeps video's `APIError`.
+            return try JSONDecoder.default.decode(StreamAPIError.self, from: data)
         } catch {
             return ClientError.NetworkError(response.description)
         }

Sources/StreamVideo/OpenApi/generated/Models/APIError.swift

@@ -4,7 +4,7 @@
 
 import Foundation
 
-public final class APIError: @unchecked Sendable, Codable, JSONEncodable, Hashable, ReflectiveStringConvertible {
+public final class APIError: @unchecked Sendable, Codable, JSONEncodable, Hashable {
 
     public var code: Int
     public var details: [Int]

Sources/StreamVideo/OpenApi/generated/Models/AppUpdatedEvent.swift

@@ -2,6 +2,7 @@
 // Copyright © 2026 Stream.io Inc. All rights reserved.
 //
 
+import StreamCore
 import Foundation
 
 public final class AppUpdatedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable {

Sources/StreamVideo/OpenApi/generated/Models/BlockedUserEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class BlockedUserEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
 

Sources/StreamVideo/OpenApi/generated/Models/CallAcceptedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallAcceptedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
 

Sources/StreamVideo/OpenApi/generated/Models/CallClosedCaptionsFailedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallClosedCaptionsFailedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
 

Sources/StreamVideo/OpenApi/generated/Models/CallClosedCaptionsStartedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallClosedCaptionsStartedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
 

Sources/StreamVideo/OpenApi/generated/Models/CallClosedCaptionsStoppedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallClosedCaptionsStoppedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
 

Sources/StreamVideo/OpenApi/generated/Models/CallCreatedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallCreatedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
 

Sources/StreamVideo/OpenApi/generated/Models/CallDeletedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallDeletedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
 

Sources/StreamVideo/OpenApi/generated/Models/CallEndedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallEndedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
 

Sources/StreamVideo/OpenApi/generated/Models/CallFrameRecordingFailedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallFrameRecordingFailedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
     public var call: CallResponse

Sources/StreamVideo/OpenApi/generated/Models/CallFrameRecordingFrameReadyEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallFrameRecordingFrameReadyEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
     public var callCid: String

Sources/StreamVideo/OpenApi/generated/Models/CallFrameRecordingStartedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallFrameRecordingStartedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
     public var call: CallResponse

Sources/StreamVideo/OpenApi/generated/Models/CallFrameRecordingStoppedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallFrameRecordingStoppedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
     public var call: CallResponse

Sources/StreamVideo/OpenApi/generated/Models/CallHLSBroadcastingFailedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallHLSBroadcastingFailedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
 

Sources/StreamVideo/OpenApi/generated/Models/CallHLSBroadcastingStartedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallHLSBroadcastingStartedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {
 

Sources/StreamVideo/OpenApi/generated/Models/CallHLSBroadcastingStoppedEvent.swift

@@ -3,6 +3,7 @@
 //
 
 import Foundation
+import StreamCore
 
 public final class CallHLSBroadcastingStoppedEvent: @unchecked Sendable, Event, Codable, JSONEncodable, Hashable, WSCallEvent {