From 66c1af0555e4376bce2091abf38b30370c70f7d4 Mon Sep 17 00:00:00 2001
From: Qstick <qstick@gmail.com>
Date: Thu, 18 Aug 2022 22:37:15 -0500
Subject: [PATCH] New: (API) Get Collection by TmdbId

---
 .../Collections/CollectionController.cs       | 20 +++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/Radarr.Api.V3/Collections/CollectionController.cs b/src/Radarr.Api.V3/Collections/CollectionController.cs
index f1438450bd..8e08067d4f 100644
--- a/src/Radarr.Api.V3/Collections/CollectionController.cs
+++ b/src/Radarr.Api.V3/Collections/CollectionController.cs
@@ -53,9 +53,25 @@ protected override CollectionResource GetResourceById(int id)
         }
 
         [HttpGet]
-        public List<CollectionResource> GetCollections()
+        public List<CollectionResource> GetCollections(int? tmdbId)
         {
-            return MapToResource(_collectionService.GetAllCollections()).ToList();
+            var collectionResources = new List<CollectionResource>();
+
+            if (tmdbId.HasValue)
+            {
+                var collection = _collectionService.FindByTmdbId(tmdbId.Value);
+
+                if (collection != null)
+                {
+                    collectionResources.AddIfNotNull(MapToResource(collection));
+                }
+            }
+            else
+            {
+                collectionResources = MapToResource(_collectionService.GetAllCollections()).ToList();
+            }
+
+            return collectionResources;
         }
 
         [RestPutById]