Swift6 + JWT-kit 5

Package.swift

@@ -1,12 +1,12 @@
-// swift-tools-version: 5.7
+// swift-tools-version: 6.0
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
 
 let package = Package(
     name: "Firebase",
     platforms: [
-       .macOS(.v10_15)
+       .macOS(.v13),
     ],
     products: [
         // Products define the executables and libraries a package produces, and make them visible to other packages.
@@ -17,17 +17,17 @@ let package = Package(
     dependencies: [
         .package(url: "https://github.com/vapor/vapor.git", from: "4.0.0"),
         .package(url: "https://github.com/Flight-School/AnyCodable", from: "0.6.7"),
-        .package(url: "https://github.com/vapor/jwt.git", from: "4.0.0"),
+        .package(url: "https://github.com/vapor/jwt-kit.git", from: "5.0.0"),
     ],
     targets: [
         // Targets are the basic building blocks of a package. A target can define a module or a test suite.
         // Targets can depend on other targets in this package, and on products in packages this package depends on.
         .target(
             name: "Firebase",
             dependencies: [
-                .product(name: "JWT", package: "jwt"),
                 .product(name: "AnyCodable", package: "AnyCodable"),
                 .product(name: "Vapor", package: "vapor"),
+                .product(name: "JWTKit", package: "jwt-kit"),
             ]),
         .testTarget(
             name: "FirebaseTests",

Sources/Firebase/ApiClient.swift

@@ -7,9 +7,9 @@
 
 import Foundation
 import Vapor
-import JWT
+import JWTKit
 
-class ApiClient {
+actor ApiClient: Sendable {
 
     let app: Application
     var config: Config?
@@ -18,6 +18,10 @@ class ApiClient {
         self.app = app
     }
 
+    func setConfig(_ config: Config?) async {
+        self.config = config
+    }
+
     func throwIfError(response: ClientResponse) throws {
         if let error = try? response.content.decode(FirebaseErrorResponse.self) {
             throw error
@@ -60,11 +64,12 @@ class ApiClient {
 
         let scopes = "https://www.googleapis.com/auth/cloud-platform https://www.googleapis.com/auth/datastore https://www.googleapis.com/auth/devstorage.full_control https://www.googleapis.com/auth/firebase https://www.googleapis.com/auth/identitytoolkit https://www.googleapis.com/auth/userinfo.email"
 
-        let privateKey = try RSAKey.private(pem: config.private_key)
-        let signers = JWTSigners()
-        signers.use(.rs256(key: privateKey), kid: JWKIdentifier(string: config.private_key_id))
+        let privateKey = try Insecure.RSA.PrivateKey(pem: config.private_key)
+        let signers = JWTKeyCollection()
+
+        await signers.add(rsa: privateKey, digestAlgorithm: .sha256, kid: JWKIdentifier(string: config.private_key_id))
 
-        let jwt = try signers.sign(FirebaseAdminAuthPayload(
+        let jwt = try await signers.sign(FirebaseAdminAuthPayload(
             scope: scopes,
             issuer: .init(stringLiteral: config.client_email),
             audience: .init(stringLiteral: config.token_uri))