Added path components helper to avoid manually adding forward slashes.

BraveShared/Analytics/UrpService.swift

@@ -52,8 +52,7 @@ struct UrpService {
             params[UrpService.ParamKeys.platform] = "ios"
             lastPathComponent = "nonua"
         }
-
-        endPoint.appendPathComponent("promo/initialize/\(lastPathComponent)")
+        endPoint.append(pathComponents: "promo", "initialize", lastPathComponent)
 
         sessionManager.urpApiRequest(endPoint: endPoint, params: params) { response in
             switch response {
@@ -79,7 +78,7 @@ struct UrpService {
             completion(nil, .endpointError)
             return
         }
-        endPoint.appendPathComponent("promo/activity")
+        endPoint.append(pathComponents: "promo", "activity")
 
         let params = [
             UrpService.ParamKeys.api: apiKey,
@@ -105,7 +104,7 @@ struct UrpService {
             completion([], .endpointError)
             return
         }
-        endPoint.appendPathComponent("promo/custom-headers")
+        endPoint.append(pathComponents: "promo", "custom-headers")
 
         let params = [UrpService.ParamKeys.api: apiKey]
 

Shared/Extensions/URLExtensions.swift

@@ -82,6 +82,12 @@ extension URL {
         }
         return val
     }
+
+    mutating public func append(pathComponents: String...) {
+        pathComponents.forEach {
+            self.appendPathComponent($0)
+        }
+    }
 
     public func getResourceLongLongForKey(_ key: String) -> Int64? {
         return (getResourceValueForKey(key) as? NSNumber)?.int64Value

SharedTests/NSURLExtensionsTests.swift

@@ -476,6 +476,21 @@ class NSURLExtensionsTests: XCTestCase {
         XCTAssertEqual("http://bar.com/noo?qqq=123", urlD.absoluteString)
         XCTAssertEqual("http://foo.com/bar/?ppp=123&rrr=aaa", urlE.absoluteString)
     }
+
+    func testAppendPathComponentsHelper() {
+        var urlA = URL(string: "http://foo.com/bar/")!
+        var urlB = URL(string: "http://bar.com/noo")!
+
+        urlA.append(pathComponents: "foo")
+        urlA.append(pathComponents: "one", "two")
+
+        urlB.append(pathComponents: "", "", "test", "", "one", "")
+
+        XCTAssertEqual("http://foo.com/bar/foo/one/two", urlA.absoluteString)
+        XCTAssertEqual("http://bar.com/noo/test/one/", urlB.absoluteString)
+
+
+    }
 
     func testHidingFromDataDetectors() {
         guard let detector = try? NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue) else {