From 69437a3b91aa3a81b26d4a15e1763257fe8c9275 Mon Sep 17 00:00:00 2001
From: Elridge D'Mello <edmello@irisplans.com>
Date: Wed, 31 May 2023 19:08:26 -0500
Subject: [PATCH] Add docs on use of cachePrefix

based on findings in this issue: https://github.com/ringcentral/ringcentral-js/issues/214
---
 sdk/README.md | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/sdk/README.md b/sdk/README.md
index 9f90ead4..06a38f80 100644
--- a/sdk/README.md
+++ b/sdk/README.md
@@ -220,6 +220,41 @@ rcsdk
     });
 ```
 
+### Multi User Login
+
+If you need to have multiple users login in to different instances of the sdk, you can use the `cachePrefix` SDK option.  Specify different `cachePrefix` values for each instance.
+
+```js
+const rcsdk1 = new RingCentral.SDK({
+    server: RingCentral.SDK.server.sandbox,
+    clientId: 'yourClientId',
+    clientSecret: 'yourClientSecret',
+    cachePrefix: 'user1',
+});
+
+rcsdk1.login({
+    username: '18001234567',
+    extension: '101',
+    password: 'password1'
+})
+
+const rcsdk2 = new RingCentral.SDK({
+    server: RingCentral.SDK.server.sandbox,
+    clientId: 'yourClientId',
+    clientSecret: 'yourClientSecret',
+    cachePrefix: 'user2',
+});
+
+rcsdk1.login({
+    username: '18005557777',
+    extension: '102',
+    password: 'password2'
+})
+
+```
+This prevents login state from being shared between the two instances `rcsdk1` and `rcsdk2`
+
+
 ## Handling login success
 
 Because the login process is asynchronous, you need to call the promise's `then` method and pass your success handler as