Set custom HTTP request header for metrics

Author: andrewjl-mux

Sources/MuxUploadSDK/Extensions/NSMutableURLRequest+Reporting.swift

@@ -7,7 +7,8 @@ import Foundation
 extension NSMutableURLRequest {
     static func makeJSONPost(
         url: URL,
-        httpBody: Data
+        httpBody: Data,
+        additionalHTTPHeaders: [String: String]
     ) -> NSMutableURLRequest {
         let request = NSMutableURLRequest(
             url: url,
@@ -18,6 +19,10 @@ extension NSMutableURLRequest {
         request.httpMethod = "POST"
         request.setValue("application/json", forHTTPHeaderField: "Accept")
         request.setValue("application/json", forHTTPHeaderField: "Content-Type")
+        for keypair in additionalHTTPHeaders {
+            request.setValue(keypair.value, forHTTPHeaderField: keypair.key)
+        }
+
         request.httpBody = httpBody
 
         return request

Sources/MuxUploadSDK/InternalUtilities/Reporting/Reporter.swift

@@ -20,6 +20,9 @@ class Reporter: NSObject {
 
     var sessionID: String = UUID().uuidString
     var url: URL
+    var additionalHTTPHeaders: [String: String] {
+        ["x-litix-sdk": "swift-upload-sdk"]
+    }
 
     // TODO: Set these using dependency Injection
     var locale: Locale {
@@ -65,7 +68,8 @@ class Reporter: NSObject {
 
         let request = NSMutableURLRequest.makeJSONPost(
             url: url,
-            httpBody: httpBody
+            httpBody: httpBody,
+            additionalHTTPHeaders: additionalHTTPHeaders
         )
 
         guard let dataTask = session?.dataTask(
@@ -268,7 +272,8 @@ extension Reporter: URLSessionDelegate, URLSessionTaskDelegate {
             // for any weirdness
             let request = NSMutableURLRequest.makeJSONPost(
                 url: redirectURL,
-                httpBody: httpBody
+                httpBody: httpBody,
+                additionalHTTPHeaders: additionalHTTPHeaders
             )
 
             completionHandler(request as URLRequest)