Added notification generation on SMS. Added FCM Token saving on login.

client/src/graphql/user.queries.js

@@ -1,7 +1,7 @@
 import { gql } from "apollo-boost";
 
 export const UPSERT_USER = gql`
-  mutation upsert_user($authEmail: String!, $authToken: String!) {
+  mutation UPSERT_USER($authEmail: String!, $authToken: String!) {
     insert_users(
       objects: [{ email: $authEmail, authid: $authToken }]
       on_conflict: { constraint: users_pkey, update_columns: [authid] }
@@ -12,3 +12,17 @@ export const UPSERT_USER = gql`
     }
   }
 `;
+
+export const UPDATE_FCM_TOKEN = gql`
+  mutation UPDATE_FCM_TOKEN($authEmail: String!, $token: jsonb!) {
+    update_users(
+      where: { email: { _eq: $authEmail } }
+      _append: { fcmtokens: $token }
+    ) {
+      affected_rows
+      returning {
+        fcmtokens
+      }
+    }
+  }
+`;