From 2705657dc10dd8bcefc8233ad9629fac747b7289 Mon Sep 17 00:00:00 2001
From: Hunter Lindsay <hunter@mevo.co.nz>
Date: Fri, 28 Aug 2020 14:23:46 +1200
Subject: [PATCH] Fix to handle invalid API directions.

---
 Sources/MapboxDirections/RoadClasses.swift | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Sources/MapboxDirections/RoadClasses.swift b/Sources/MapboxDirections/RoadClasses.swift
index 8cc0fd519..e67b35fa4 100644
--- a/Sources/MapboxDirections/RoadClasses.swift
+++ b/Sources/MapboxDirections/RoadClasses.swift
@@ -99,6 +99,11 @@ extension RoadClasses: Codable {
     public init(from decoder: Decoder) throws {
         let container = try decoder.singleValueContainer()
         let descriptions = try container.decode([String].self)
-        self = RoadClasses(descriptions: descriptions)!
+        if let roadClasses = RoadClasses(descriptions: descriptions){
+            self = roadClasses
+        }
+        else{
+            throw DirectionsError.invalidResponse(nil)
+        }
     }
 }