From dfc6aea6a6089acbac347f2a151084c53b5c2626 Mon Sep 17 00:00:00 2001
From: Kenneth Geisshirt <geisshirt@gmail.com>
Date: Thu, 8 Mar 2018 17:27:13 +0100
Subject: [PATCH] Deprecated setFeatureToken(). (#1694)

---
 CHANGELOG.md      | 1 +
 lib/extensions.js | 6 +-----
 lib/index.d.ts    | 4 ++++
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index da96615f..34b157a7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,7 @@
   - Method `Realm.privilges()` to compute privileges on a Realm, a Realm object schema, or a Realm object. The method returns either a `Realm.Permissions.Realm` or `Realm.Permissions.Class` object.
   - For non-synced Realms, all privileges are always granted.
   - For more details, please read the reference documentation.
+* [Sync] Decrepated `Realm.Sync.setFeatureToken` (#1689).
 
 ### Internal
 * Updated to Realm Core 5.3.0.
diff --git a/lib/extensions.js b/lib/extensions.js
index 033d305c..2f3792f4 100644
--- a/lib/extensions.js
+++ b/lib/extensions.js
@@ -151,11 +151,7 @@ module.exports = function(realmConstructor) {
 
         if (realmConstructor.Sync._setFeatureToken) {
             realmConstructor.Sync.setFeatureToken = function(featureToken) {
-                if (typeof featureToken !== 'string' && !(featureToken instanceof String)) {
-                    throw new Error("featureToken should be a string");
-                }
-
-                realmConstructor.Sync._setFeatureToken(featureToken.trim());
+                console.log('Realm.Sync.setFeatureToken() is deprecated and you can remove any calls to it.');
             }
         }
 
diff --git a/lib/index.d.ts b/lib/index.d.ts
index 21f0e93a..f7fa3cdd 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -448,6 +448,10 @@ declare namespace Realm.Sync {
     function removeListener(regex: string, name: string, changeCallback: (changeEvent: ChangeEvent) => void): Promise<void>;
     function setLogLevel(logLevel: 'all' | 'trace' | 'debug' | 'detail' | 'info' | 'warn' | 'error' | 'fatal' | 'off'): void;
     function initiateClientReset(path: string): void;
+
+    /**
+     * @deprecated, to be removed in future versions
+     */
     function setFeatureToken(token: string): void;
 
     type Instruction = {