From 707dcc3daae3c6bf32d8d29ebe7bb343af21d002 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Laurent=20Tr=C3=A9guier?= <laurent.treguier@fyreplace.app>
Date: Fri, 6 Sep 2024 12:44:18 +0200
Subject: [PATCH] Make requests idempotent

---
 Fyreplace/Config/Config.swift            | 12 ++++++++++--
 Fyreplace/Data/RequestIdMiddleware.swift | 17 +++++++++++++++++
 Fyreplace/Extensions/HTTPField.swift     |  5 +++++
 Fyreplace/Extensions/String.swift        |  7 +++++++
 4 files changed, 39 insertions(+), 2 deletions(-)
 create mode 100644 Fyreplace/Data/RequestIdMiddleware.swift
 create mode 100644 Fyreplace/Extensions/HTTPField.swift
 create mode 100644 Fyreplace/Extensions/String.swift

diff --git a/Fyreplace/Config/Config.swift b/Fyreplace/Config/Config.swift
index ee5192e..98f8b80 100644
--- a/Fyreplace/Config/Config.swift
+++ b/Fyreplace/Config/Config.swift
@@ -83,10 +83,18 @@ struct Config {
             }
 
             func client(for environment: ServerEnvironment) -> Client {
+                let configuration = URLSessionConfiguration.default
+                configuration.waitsForConnectivity = true
+
+                #if os(iOS)
+                configuration.multipathServiceType = .handover
+                #endif
+
                 return Client(
                     serverURL: url(for: environment),
-                    transport: URLSessionTransport(),
-                    middlewares: [AuthenticationMiddleware()]
+                    configuration: .init(dateTranscoder: .iso8601WithFractionalSeconds),
+                    transport: URLSessionTransport(configuration: .init(session: .init(configuration: configuration))),
+                    middlewares: [RequestIdMiddleware(), AuthenticationMiddleware()]
                 )
             }
         }
diff --git a/Fyreplace/Data/RequestIdMiddleware.swift b/Fyreplace/Data/RequestIdMiddleware.swift
new file mode 100644
index 0000000..628fb54
--- /dev/null
+++ b/Fyreplace/Data/RequestIdMiddleware.swift
@@ -0,0 +1,17 @@
+import Foundation
+import HTTPTypes
+import OpenAPIRuntime
+
+struct RequestIdMiddleware: ClientMiddleware {
+    func intercept(
+        _ request: HTTPRequest,
+        body: HTTPBody?,
+        baseURL: URL,
+        operationID _: String,
+        next: @Sendable (HTTPRequest, HTTPBody?, URL) async throws -> (HTTPResponse, HTTPBody?)
+    ) async throws -> (HTTPResponse, HTTPBody?) {
+        var request = request
+        request.headerFields[.xRequestId] = UUID().uuidString
+        return try await next(request, body, baseURL)
+    }
+}
diff --git a/Fyreplace/Extensions/HTTPField.swift b/Fyreplace/Extensions/HTTPField.swift
new file mode 100644
index 0000000..6a41dc1
--- /dev/null
+++ b/Fyreplace/Extensions/HTTPField.swift
@@ -0,0 +1,5 @@
+import HTTPTypes
+
+extension HTTPField.Name {
+    static let xRequestId = Self("X-Request-Id")!
+}
diff --git a/Fyreplace/Extensions/String.swift b/Fyreplace/Extensions/String.swift
new file mode 100644
index 0000000..afb3276
--- /dev/null
+++ b/Fyreplace/Extensions/String.swift
@@ -0,0 +1,7 @@
+import Foundation
+
+extension String {
+    static var randomUuid: String {
+        UUID().uuidString
+    }
+}