Add github workflows

.github/actionlint-matcher.json

@@ -0,0 +1,17 @@
+{
+  "problemMatcher": [
+    {
+      "owner": "actionlint",
+      "pattern": [
+        {
+          "regexp": "^(?:\\x1b\\[\\d+m)?(.+?)(?:\\x1b\\[\\d+m)?:(?:\\x1b\\[\\d+m)?(\\d+)(?:\\x1b\\[\\d+m)?:(?:\\x1b\\[\\d+m)?(\\d+)(?:\\x1b\\[\\d+m)?: (?:\\x1b\\[\\d+m)?(.+?)(?:\\x1b\\[\\d+m)? \\[(.+?)\\]$",
+          "file": 1,
+          "line": 2,
+          "column": 3,
+          "message": 4,
+          "code": 5
+        }
+      ]
+    }
+  ]
+}

.github/workflows/lint-swift.yml

@@ -0,0 +1,26 @@
+name: Lint Swift
+
+on:
+  pull_request:
+    branches:
+      - '*'
+    paths:
+      - '**/*.swift'
+      - 'Package.swift'
+      - 'Package.resolved'
+      - '.swiftlint.yml'
+      - '.github/workflows/lint-swift.yml'
+
+jobs:
+  swiftlint:
+    name: SwiftLint
+    runs-on: macos-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Install SwiftLint
+      run: brew install swiftlint
+
+    - name: Run SwiftLint
+      run: swiftlint lint --strict

.github/workflows/lint-workflows.yml

@@ -0,0 +1,30 @@
+name: Lint Workflows
+
+on:
+  pull_request:
+    branches:
+      - '*'
+    paths:
+      - '.github/workflows/*.yml'
+      - '.github/actionlint-matcher.json'
+
+jobs:
+  actionlint:
+    name: actionlint
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Download actionlint
+      id: get_actionlint
+      run: bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
+      shell: bash
+
+    - name: Register problem matcher
+      run: echo "::add-matcher::.github/actionlint-matcher.json"
+
+    - name: Run actionlint
+      run: ${{ steps.get_actionlint.outputs.executable }} -color
+      shell: bash

.github/workflows/test.yml

@@ -0,0 +1,36 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - '**/*.swift'
+      - 'Package.swift'
+      - 'Package.resolved'
+      - '.github/workflows/test.yml'
+  pull_request:
+    branches:
+      - '*'
+    paths:
+      - '**/*.swift'
+      - 'Package.swift'
+      - 'Package.resolved'
+      - '.github/workflows/test.yml'
+
+jobs:
+  macos:
+    name: macOS
+    runs-on: macos-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Swift version
+      run: swift --version
+
+    - name: Build
+      run: swift build -v
+
+    - name: Run tests
+      run: swift test -v

Package.swift

@@ -27,7 +27,7 @@ let package = Package(
         .target(
             name: "GraphQLAPIKit",
             dependencies: [
-                .product(name: "Apollo", package: "apollo-ios"),
+                .product(name: "Apollo", package: "apollo-ios")
             ]
         ),
         .testTarget(

Sources/GraphQLAPIKit/Errors/GraphQLAPIAdapterError.swift

@@ -18,15 +18,13 @@ public enum GraphQLAPIAdapterError: LocalizedError {
     /// Errors returned by GraphQL API as part of `errors` field
     case graphQl([GraphQLError])
 
-
     init(error: Error) {
         if let error = error as? GraphQLAPIAdapterError {
             self = error
         } else if let error = error as? ApolloError {
             self = .graphQl(error.errors.map(GraphQLError.init))
         } else if let error = error as? URLSessionClient.URLSessionClientError,
-            case let URLSessionClient.URLSessionClientError.networkError(_, response, underlyingError) = error
-        {
+                  case let URLSessionClient.URLSessionClientError.networkError(_, response, underlyingError) = error {
             if let response = response {
                 self = .network(code: response.statusCode, error: underlyingError)
             } else {

Sources/GraphQLAPIKit/Extensions/GraphQLAPIAdapter+Extensions.swift

@@ -2,6 +2,7 @@ import Apollo
 import ApolloAPI
 import Foundation
 
+// swiftlint:disable:next no_extension_access_modifier
 public extension GraphQLAPIAdapterProtocol {
     func fetch<Query: GraphQLQuery>(
         query: Query,

Sources/GraphQLAPIKit/GraphQLAPIAdapter.swift

@@ -38,12 +38,14 @@ public protocol GraphQLAPIAdapterProtocol: AnyObject {
 public final class GraphQLAPIAdapter: GraphQLAPIAdapterProtocol {
     private let apollo: ApolloClientProtocol
 
+    // swiftlint:disable function_default_parameter_at_end
     public init<each Observer: GraphQLNetworkObserver>(
         url: URL,
         urlSessionConfiguration: URLSessionConfiguration = .default,
         defaultHeaders: [String: String] = [:],
         networkObservers: repeat each Observer
     ) {
+        // swiftlint:enable function_default_parameter_at_end
         var observers: [any GraphQLNetworkObserver] = []
         repeat observers.append(each networkObservers)
 
@@ -68,7 +70,7 @@ public final class GraphQLAPIAdapter: GraphQLAPIAdapterProtocol {
         url: URL,
         urlSessionConfiguration: URLSessionConfiguration = .default,
         defaultHeaders: [String: String] = [:],
-        networkObservers: [any GraphQLNetworkObserver]
+        networkObservers: [any GraphQLNetworkObserver] = []
     ) {
         let provider = NetworkInterceptorProvider(
             client: URLSessionClient(sessionConfiguration: urlSessionConfiguration),

Sources/GraphQLAPIKit/Interceptors/NetworkInterceptorProvider.swift

@@ -21,7 +21,7 @@ struct NetworkInterceptorProvider: InterceptorProvider {
     func interceptors<Operation: GraphQLOperation>(for operation: Operation) -> [ApolloInterceptor] {
         // Headers first, then before-observers, then network fetch, then after-observers
         [
-            RequestHeaderInterceptor(defaultHeaders: defaultHeaders),
+            RequestHeaderInterceptor(defaultHeaders: defaultHeaders)
         ]
         + pairOfObserverInterceptors.map(\.before)  // Before network - captures timing
         + [
@@ -35,8 +35,8 @@ struct NetworkInterceptorProvider: InterceptorProvider {
             JSONResponseParsingInterceptor()
         ]
     }
-    
-    static private func makePair<T: GraphQLNetworkObserver>(of observer: T) -> (before: ApolloInterceptor, after: ApolloInterceptor) {
+
+    private static func makePair<T: GraphQLNetworkObserver>(of observer: T) -> (before: ApolloInterceptor, after: ApolloInterceptor) {
         let contextStore = ObserverContextStore<T.Context>()
         let beforeInterceptor = ObserverInterceptor(observer: observer, contextStore: contextStore)
         let afterInterceptor = ObserverInterceptor(observer: observer, contextStore: contextStore)

Tests/GraphQLAPIKitTests/GraphQLAPIAdapterErrorTests.swift

@@ -1,6 +1,6 @@
-import XCTest
 import Apollo
 @testable import GraphQLAPIKit
+import XCTest
 
 final class GraphQLAPIAdapterErrorTests: XCTestCase {
     func testGraphQLAPIAdapterErrorPassthrough() {
@@ -46,12 +46,14 @@ final class GraphQLAPIAdapterErrorTests: XCTestCase {
             code: 500,
             userInfo: [NSLocalizedDescriptionKey: "Server error"]
         )
+        // swiftlint:disable force_unwrapping
         let response = HTTPURLResponse(
             url: URL(string: "https://example.com")!,
             statusCode: 500,
             httpVersion: nil,
             headerFields: nil
         )!
+        // swiftlint:enable force_unwrapping
         let urlSessionError = URLSessionClient.URLSessionClientError.networkError(
             data: Data(),
             response: response,

Tests/GraphQLAPIKitTests/GraphQLAPIAdapterIntegrationTests.swift

@@ -1,7 +1,7 @@
 import Apollo
 import ApolloAPI
-import XCTest
 @testable import GraphQLAPIKit
+import XCTest
 
 // MARK: - MockURLProtocol
 
@@ -22,11 +22,11 @@ final class MockURLProtocol: URLProtocol {
         mockError = nil
     }
 
-    override class func canInit(with request: URLRequest) -> Bool {
+    override static func canInit(with request: URLRequest) -> Bool {
         true
     }
 
-    override class func canonicalRequest(for request: URLRequest) -> URLRequest {
+    override static func canonicalRequest(for request: URLRequest) -> URLRequest {
         request
     }
 
@@ -44,12 +44,16 @@ final class MockURLProtocol: URLProtocol {
             statusCode: 200
         )
 
+        guard let url = request.url else {
+            return
+        }
+
         let httpResponse = HTTPURLResponse(
-            url: request.url!,
+            url: url,
             statusCode: response.statusCode,
             httpVersion: "HTTP/1.1",
             headerFields: ["Content-Type": "application/json"]
-        )!
+        )! // swiftlint:disable:this force_unwrapping
 
         client?.urlProtocol(self, didReceive: httpResponse, cacheStoragePolicy: .notAllowed)
         client?.urlProtocol(self, didLoad: response.data)
@@ -60,9 +64,9 @@ final class MockURLProtocol: URLProtocol {
 
     /// A valid GraphQL response with minimal data
     private var validGraphQLResponse: Data {
-        """
+        Data("""
         {"data": {"__typename": "Query"}}
-        """.data(using: .utf8)!
+        """.utf8)
     }
 }
 
@@ -72,7 +76,9 @@ enum MockSchema: SchemaMetadata {
     static let configuration: any SchemaConfiguration.Type = MockSchemaConfiguration.self
 
     static func objectType(forTypename typename: String) -> Object? {
-        if typename == "Query" { return MockQuery.Data.self.__parentType as? Object }
+        if typename == "Query" {
+            return MockQuery.Data.self.__parentType as? Object
+        }
         return nil
     }
 }
@@ -94,6 +100,7 @@ final class MockQuery: GraphQLQuery {
 
     init() {}
 
+    // swiftlint:disable nesting identifier_name
     struct MockQueryData: RootSelectionSet {
         typealias Schema = MockSchema
 
@@ -106,6 +113,7 @@ final class MockQuery: GraphQLQuery {
             self.__data = _dataDict
         }
     }
+    // swiftlint:enable nesting identifier_name
 }
 
 // MARK: - Mock Request Headers
@@ -172,6 +180,7 @@ final class GraphQLAPIAdapterIntegrationTests: XCTestCase {
         ]
 
         let adapter = GraphQLAPIAdapter(
+            // swiftlint:disable:next force_unwrapping
             url: URL(string: "https://api.example.com/graphql")!,
             urlSessionConfiguration: mockSessionConfiguration(),
             defaultHeaders: defaultHeaders,
@@ -207,10 +216,10 @@ final class GraphQLAPIAdapterIntegrationTests: XCTestCase {
         ])
 
         let adapter = GraphQLAPIAdapter(
+            // swiftlint:disable:next force_unwrapping
             url: URL(string: "https://api.example.com/graphql")!,
             urlSessionConfiguration: mockSessionConfiguration(),
-            defaultHeaders: [:],
-            networkObservers: observer
+            networkObservers: [observer]
         )
 
         _ = adapter.fetch(query: MockQuery(), context: contextHeaders, queue: .main) { _ in
@@ -246,6 +255,7 @@ final class GraphQLAPIAdapterIntegrationTests: XCTestCase {
         ])
 
         let adapter = GraphQLAPIAdapter(
+            // swiftlint:disable:next force_unwrapping
             url: URL(string: "https://api.example.com/graphql")!,
             urlSessionConfiguration: mockSessionConfiguration(),
             defaultHeaders: defaultHeaders,
@@ -282,10 +292,13 @@ final class GraphQLAPIAdapterIntegrationTests: XCTestCase {
         let defaultHeaders = ["X-Shared-Header": "shared-value"]
 
         let adapter = GraphQLAPIAdapter(
+            // swiftlint:disable:next force_unwrapping
             url: URL(string: "https://api.example.com/graphql")!,
             urlSessionConfiguration: mockSessionConfiguration(),
             defaultHeaders: defaultHeaders,
-            networkObservers: observer1, observer2, observer3
+            networkObservers: observer1,
+            observer2,
+            observer3
         )
 
         _ = adapter.fetch(query: MockQuery(), context: nil, queue: .main) { _ in
@@ -319,10 +332,10 @@ final class GraphQLAPIAdapterIntegrationTests: XCTestCase {
         let observer = IntegrationMockObserver()
 
         let adapter = GraphQLAPIAdapter(
+            // swiftlint:disable:next force_unwrapping
             url: URL(string: "https://api.example.com/graphql")!,
             urlSessionConfiguration: mockSessionConfiguration(),
-            defaultHeaders: [:],
-            networkObservers: observer
+            networkObservers: [observer]
         )
 
         _ = adapter.fetch(query: MockQuery(), context: nil, queue: .main) { _ in
@@ -340,5 +353,4 @@ final class GraphQLAPIAdapterIntegrationTests: XCTestCase {
         XCTAssertEqual(capturedRequest.value(forHTTPHeaderField: "X-APOLLO-OPERATION-NAME"), "MockQuery")
         XCTAssertNotNil(capturedRequest.value(forHTTPHeaderField: "Content-Type"))
     }
-
 }

Tests/GraphQLAPIKitTests/GraphQLAPIAdapterTests.swift

@@ -1,9 +1,10 @@
 import Apollo
 import ApolloAPI
-import XCTest
 @testable import GraphQLAPIKit
+import XCTest
 
 final class GraphQLAPIAdapterTests: XCTestCase {
+    // swiftlint:disable:next force_unwrapping
     let testURL = URL(string: "https://api.example.com/graphql")!
 
     // MARK: - Initialization Tests
@@ -37,5 +38,4 @@ final class GraphQLAPIAdapterTests: XCTestCase {
         )
         XCTAssertNotNil(adapter)
     }
-
 }

Tests/GraphQLAPIKitTests/GraphQLErrorTests.swift

@@ -1,6 +1,6 @@
-import XCTest
 import Apollo
 @testable import GraphQLAPIKit
+import XCTest
 
 final class GraphQLErrorTests: XCTestCase {
     func testGraphQLErrorWithMessageAndCode() {