diff --git a/google/calendar.html b/google/calendar.html
index efe644e..e254cb4 100644
--- a/google/calendar.html
+++ b/google/calendar.html
@@ -21,7 +21,7 @@
     </div>
     <div class="form-row">
         <label for="node-input-calendar"><i class="fa fa-tag"></i> <span data-i18n="calendar.label.calendar"></span></label>
-        <input type="text" id="node-input-calendar">
+        <select id="node-input-calendar" style="width: 70%"></select>
     </div>
     <div class="form-row">
         <span data-i18n="calendar.label.inject-message"></span>
@@ -80,40 +80,51 @@
 </script>
 
 <script type="text/javascript">
-    RED.nodes.registerType('google calendar in',{
+    RED.nodes.registerType('google calendar in', {
         category: 'Google',
-        color:"#C0DEED",
+        color: "#C0DEED",
         defaults: {
-            google: {type:"google-credentials",required:true},
-            name: {value:""},
-            calendar: {value:""},
-            offsetType: {value:"at"},
-            offsetFrom: {value:"start"},
-            offset: {value:"10"},
-            offsetUnits: {value:"minutes"}
+            google: { type: "google-credentials", required: true },
+            name: { value: "" },
+            calendar: { value: "" },
+            offsetType: { value: "at" },
+            offsetFrom: { value: "start" },
+            offset: { value: "10" },
+            offsetUnits: { value: "minutes" }
         },
-        inputs:0,
-        outputs:1,
+        inputs: 0,
+        outputs: 1,
         icon: "google-calendar.png",
-        label: function() {
-            return this.name||this._("calendar.label.google-calendar");
+        label: function () {
+            return this.name || this._("calendar.label.google-calendar");
         },
-        oneditprepare: function() {
+        oneditprepare: function () {
             var type = this.offsetType || "at";
-            $("#node-input-offsetType option").filter(function() {
+            var node = this;
+            $("#node-input-offsetType option").filter(function () {
                 return $(this).val() == type;
             }).attr('selected', true);
             var from = this.offsetFrom || "start";
-            $("#node-input-offsetFrom option").filter(function() {
+            $("#node-input-offsetFrom option").filter(function () {
                 return $(this).val() == from;
             }).attr('selected', true);
             $("#node-input-offset").val(this.offset || "0");
             var units = this.offsetUnits || "minutes";
-            $("#node-input-offsetUnits option").filter(function() {
+            $("#node-input-offsetUnits option").filter(function () {
                 return $(this).val() == units;
             }).attr('selected', true);
 
-            var updateOptions = function() {
+            var google = $("#node-input-google").val() || ""
+            $.getJSON('cal?id=' + google, function (data) {
+                data.forEach(function (el) {
+                    $("#node-input-calendar").append('<option value=' + el.id + '>' + el.summary + '</option>');
+                    if (node.calendar == el) {
+                        $('#node-input-calendar option[value="' + node.calendar + '"]').prop('selected', true)
+                    }
+                })
+            })
+
+            var updateOptions = function () {
                 var type = $("#node-input-offsetType option:selected").val();
                 var from = $("#node-input-offsetFrom option:selected").val();
                 if (type === "at") {
@@ -123,10 +134,10 @@
                     $("#node-input-from").html(from);
                     $("#node-row-offset").show();
                 }
-             };
-             updateOptions();
-             $("#node-input-offsetType").change(updateOptions);
-             $("#node-input-offsetFrom").change(updateOptions);
+            };
+            updateOptions();
+            $("#node-input-offsetType").change(updateOptions);
+            $("#node-input-offsetFrom").change(updateOptions);
         },
     });
 </script>
@@ -138,7 +149,7 @@
     </div>
     <div class="form-row">
         <label for="node-input-calendar"><i class="fa fa-tag"></i> <span data-i18n="calendar.label.calendar"></span></label>
-        <input type="text" id="node-input-calendar">
+        <select id="node-input-calendar" style="width: 70%"></select>
     </div>
     <div class="form-row">
         <label for="node-input-name"><i class="fa fa-tag"></i> <span data-i18n="calendar.label.name"></span></label>
@@ -160,6 +171,7 @@
     <ul>
       <li><b>payload</b> - a text search string used to select relevant events</li>
       <li><b>calendar</b> - the calendar to retrieve the event from (optional, defaults to the node calendar property or the users primary calendar)</li>
+      <li><b>list</b> - string used to filter list of existing calendars (if used the node will return only the list)</li>
       <li><b>count</b> - the number of events to retrieve (Accepted values are [1-10]. If larger than 1, an array will be returned)</li>
     </ul>
   </p>
@@ -181,30 +193,43 @@
           <li><b>attendees</b> - list of objects containing name and email properties</li>
         </ul>
       </li>
+    <li><b>calendars</b> - list of existing calendars</li>
     </ul>
   </p>
 </script>
 
 <script type="text/javascript">
-    RED.nodes.registerType('google calendar',{
+    RED.nodes.registerType('google calendar', {
         category: 'social',
-        color:"#C0DEED",
+        color: "#C0DEED",
         defaults: {
-            google: {type:"google-credentials",required:true},
-            name: {value:""},
-            calendar: {value:""},
-            ongoing: {value: false},
+            google: { type: "google-credentials", required: true },
+            name: { value: "" },
+            calendar: { value: "" },
+            ongoing: { value: false },
             count: {value: 1, validate: function(n) {
                 return +n >= 1 && +n <= 10;
             }}
         },
-        inputs:1,
-        outputs:1,
+        inputs: 1,
+        outputs: 1,
         icon: "google-calendar.png",
         align: "right",
-        label: function() {
-            return this.name||this._("calendar.label.google-calendar");
-        }
+        label: function () {
+            return this.name || this._("calendar.label.google-calendar");
+        },
+        oneditprepare: function () {
+            var node = this;
+            var google = $("#node-input-google").val() || ""
+            $.getJSON('cal?id=' + google, function (data) {
+                data.forEach(function (el) {
+                    $("#node-input-calendar").append('<option value=' + el.id + '>' + el.summary + '</option>');
+                    if (node.calendar == el) {
+                        $('#node-input-calendar option[value="' + node.calendar + '"]').prop('selected', true)
+                    }
+                })
+            })
+        },
     });
 </script>
 
@@ -215,7 +240,7 @@
     </div>
     <div class="form-row">
         <label for="node-input-calendar"><i class="fa fa-tag"></i> <span data-i18n="calendar.label.calendar"></span></label>
-        <input type="text" id="node-input-calendar">
+        <select id="node-input-calendar" style="width: 70%"></select>
     </div>
     <div class="form-row">
         <label for="node-input-name"><i class="fa fa-tag"></i> <span data-i18n="calendar.label.name"></span></label>
@@ -235,20 +260,32 @@
 </script>
 
 <script type="text/javascript">
-    RED.nodes.registerType('google calendar out',{
+    RED.nodes.registerType('google calendar out', {
         category: 'Google',
-        color:"#C0DEED",
+        color: "#C0DEED",
         defaults: {
-            google: {type:"google-credentials",required:true},
-            name: {value:""},
-            calendar: {value:""}
+            google: { type: "google-credentials", required: true },
+            name: { value: "" },
+            calendar: { value: "" }
         },
-        inputs:1,
-        outputs:0,
+        inputs: 1,
+        outputs: 0,
         icon: "google-calendar.png",
         align: "right",
-        label: function() {
-            return this.name||this._("calendar.label.google-calendar");
-        }
+        label: function () {
+            return this.name || this._("calendar.label.google-calendar");
+        },
+        oneditprepare: function () {
+            var node = this;
+            var google = $("#node-input-google").val() || ""
+            $.getJSON('cal?id=' + google, function (data) {
+                data.forEach(function (el) {
+                    $("#node-input-calendar").append('<option value=' + el.id + '>' + el.summary + '</option>');
+                    if (node.calendar == el) {
+                        $('#node-input-calendar option[value="' + node.calendar + '"]').prop('selected', true)
+                    }
+                })
+            })
+        },
     });
 </script>
diff --git a/google/calendar.js b/google/calendar.js
index b93a275..9262b3d 100644
--- a/google/calendar.js
+++ b/google/calendar.js
@@ -13,12 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  **/
-
-module.exports = function(RED) {
+var request = require('request');
+module.exports = function (RED) {
     "use strict";
 
     function GoogleCalendarInputNode(n) {
-        RED.nodes.createNode(this,n);
+        RED.nodes.createNode(this, n);
         this.google = RED.nodes.getNode(n.google);
         if (!this.google || !this.google.credentials.accessToken) {
             this.warn(RED._("calendar.warn.no-credentials"));
@@ -31,9 +31,9 @@ module.exports = function(RED) {
             var plusOrMinus = n.offsetType === 'before' ? 1 : -1;
             var multiplier = {
                 seconds: 1000,
-                minutes: 60*1000,
-                hours: 60*60*1000,
-                days: 24*60*60*1000
+                minutes: 60 * 1000,
+                hours: 60 * 60 * 1000,
+                days: 24 * 60 * 60 * 1000
             }[n.offsetUnits];
             this.offset = plusOrMinus * n.offset * multiplier;
         }
@@ -48,29 +48,29 @@ module.exports = function(RED) {
             eventsBetween = eventsEndingBetween;
         }
         var node = this;
-        node.status({fill:"blue",shape:"dot",text:"calendar.status.querying"});
-        calendarList(node, function(err) {
+        node.status({ fill: "blue", shape: "dot", text: "calendar.status.querying" });
+        calendarList(node, function (err) {
             if (err) {
-                node.error(err,{});
-                node.status({fill:"red",shape:"ring",text:"calendar.status.failed"});
+                node.error(err, {});
+                node.status({ fill: "red", shape: "ring", text: "calendar.status.failed" });
                 return;
             }
             var cal = calendarByNameOrId(node, node.calendar);
             if (!cal) {
-                node.status({fill:"red",shape:"ring",text:"calendar.status.invalid-calendar"});
+                node.status({ fill: "red", shape: "ring", text: "calendar.status.invalid-calendar" });
                 return;
             }
             node.status({});
-            node.on('input', function(msg) {
-                node.status({fill:"blue",shape:"dot",text:"calendar.status.querying"});
+            node.on('input', function (msg) {
+                node.status({ fill: "blue", shape: "dot", text: "calendar.status.querying" });
                 var now = new Date();
-                eventsBetween(node, cal, {}, node.last, now, function(err,events) {
-                    setNextTimeout(node, cal, now, function() {
+                eventsBetween(node, cal, {}, node.last, now, function (err, events) {
+                    setNextTimeout(node, cal, now, function () {
                         node.emit('input', {});
                     });
                     if (err) {
-                        node.error(err,msg);
-                        node.status({fill:"blue",shape:"dot",text:"calendar.status.failed"});
+                        node.error(err, msg);
+                        node.status({ fill: "blue", shape: "dot", text: "calendar.status.failed" });
                     } else {
                         node.status({});
                         events.forEach(function (ev) {
@@ -79,10 +79,10 @@ module.exports = function(RED) {
                     }
                 });
             });
-            node.timeout = setNextTimeout(node, cal, new Date(), function() {
+            node.timeout = setNextTimeout(node, cal, new Date(), function () {
                 node.emit('input', {});
             });
-            node.on("close", function() {
+            node.on("close", function () {
                 if (node.timeout !== null) {
                     clearTimeout(node.timeout);
                     delete node.timeout;
@@ -93,10 +93,10 @@ module.exports = function(RED) {
     RED.nodes.registerType("google calendar in", GoogleCalendarInputNode);
 
     function setNextStartingTimeout(node, cal, after, cb) {
-        node.status({fill:"blue",shape:"dot",text:"calendar.status.next-event"});
+        node.status({ fill: "blue", shape: "dot", text: "calendar.status.next-event" });
         node.last = new Date(after.getTime());
-        after = new Date(after.getTime()+node.offset); // apply offset
-        nextStartingEvent(node, cal, {}, after, function(err, ev) {
+        after = new Date(after.getTime() + node.offset); // apply offset
+        nextStartingEvent(node, cal, {}, after, function (err, ev) {
             var timeout = 900000; // 15 minutes
             node.status({});
             if (!err && ev) {
@@ -115,10 +115,10 @@ module.exports = function(RED) {
     }
 
     function setNextEndingTimeout(node, cal, after, cb) {
-        node.status({fill:"blue",shape:"dot",text:"calendar.status.next-event"});
+        node.status({ fill: "blue", shape: "dot", text: "calendar.status.next-event" });
         node.last = new Date(after.getTime());
-        after = new Date(after.getTime()+node.offset); // apply offset
-        nextEndingEvent(node, cal, {}, after, function(err, ev) {
+        after = new Date(after.getTime() + node.offset); // apply offset
+        nextEndingEvent(node, cal, {}, after, function (err, ev) {
             var timeout = 900000; // 15 minutes
             node.status({});
             if (!err && ev) {
@@ -137,7 +137,7 @@ module.exports = function(RED) {
     }
 
     function GoogleCalendarQueryNode(n) {
-        RED.nodes.createNode(this,n);
+        RED.nodes.createNode(this, n);
         this.google = RED.nodes.getNode(n.google);
         this.calendar = n.calendar || 'primary';
         this.ongoing = n.ongoing || false;
@@ -152,24 +152,56 @@ module.exports = function(RED) {
         }
 
         var node = this;
-        node.status({fill:"blue",shape:"dot",text:"calendar.status.querying"});
-        calendarList(node, function(err) {
+        node.status({ fill: "blue", shape: "dot", text: "calendar.status.querying" });
+        calendarList(node, function (err) {
             if (err) {
-                node.error(err,{});
-                node.status({fill:"red",shape:"ring",text:"calendar.status.failed"});
+                node.error(err, {});
+                node.status({ fill: "red", shape: "ring", text: "calendar.status.failed" });
                 return;
             }
             node.status({});
 
-            node.on('input', function(msg) {
-                node.status({fill:"blue",shape:"dot",text:"calendar.status.querying"});
-                var cal = calendarByNameOrId(node, msg.calendar) ||
-                    calendarByNameOrId(node, node.calendar);
-                if (!cal) {
-                    node.error(RED._("calendar.error.invalid-calendar"),msg);
-                    node.status({fill:"red",shape:"ring",text:"calendar.status.invalid-calendar"});
+            node.on('input', function (msg) {
+                node.status({ fill: "blue", shape: "dot", text: "calendar.status.querying" });
+                if (msg.list != undefined) {
+                    const find = msg.list.toUpperCase()
+                    var calList = {};
+                    Object.keys(node.calendars).map(function (cal) {
+                        if (cal == 'primary') return;
+                        const summary = node.calendars[cal].summary ? node.calendars[cal].summary : cal;
+                        const summarY = summary.toUpperCase();
+                        if (summarY.indexOf(find) != -1 || msg.list == '') {
+                            calList[cal] = summary;
+                        }
+                    })
+                    node.status({});
+                    msg.calendars = calList;
+                    node.send(msg);
                     return;
+                } else {
+                    var cal = calendarByNameOrId(node, msg.calendar) ||
+                        calendarByNameOrId(node, node.calendar);
+                    if (!cal) {
+                        node.error(RED._("calendar.error.invalid-calendar"), msg);
+                        node.status({ fill: "red", shape: "ring", text: "calendar.status.invalid-calendar" });
+                        return;
+                    }
+                    nextStartingEvent(node, cal, msg, function (err, ev) {
+                        if (err) {
+                            node.error(RED._("calendar.error.error", { error: err.toString() }), msg);
+                            node.status({ fill: "red", shape: "ring", text: "calendar.status.failed" });
+                            return;
+                        }
+                        if (!ev) {
+                            node.error(RED._("calendar.error.no-event"), msg);
+                            node.status({ fill: "red", shape: "ring", text: "calendar.status.no-event" });
+                        } else {
+                            sendEvent(node, ev, msg);
+                            node.status({});
+                        }
+                    });
                 }
+                
                 nextStartingEvents(node, cal, msg, function(err, ev) {
                     if (err) {
                         node.error(RED._("calendar.error.error", {error:err.toString()}),msg);
@@ -216,13 +248,13 @@ module.exports = function(RED) {
 
     function calendarList(node, cb) {
         node.calendars = {};
-        node.google.request('https://www.googleapis.com/calendar/v3/users/me/calendarList', function(err, data) {
+        node.google.request('https://www.googleapis.com/calendar/v3/users/me/calendarList', function (err, data) {
             if (err) {
-                cb(RED._("calendar.error.fetch-failed", {message:err.toString()}));
+                cb(RED._("calendar.error.fetch-failed", { message: err.toString() }));
                 return;
             }
             if (data.error) {
-                cb(RED._("calendar.error.fetch-failed", {message:data.error.message}));
+                cb(RED._("calendar.error.fetch-failed", { message: data.error.message }));
                 return;
             }
             for (var i = 0; i < data.items.length; i++) {
@@ -243,7 +275,7 @@ module.exports = function(RED) {
         }
 
         var request = {
-            url: 'https://www.googleapis.com/calendar/v3/calendars/'+cal.id+'/events'
+            url: 'https://www.googleapis.com/calendar/v3/calendars/' + cal.id + '/events'
         };
         request.qs = {
             maxResults: node.count || 10,
@@ -258,9 +290,9 @@ module.exports = function(RED) {
         var events = [];
         var handle_response = function(err, data) {
             if (err) {
-                cb(RED._("calendar.error.error", {error:err.toString()}), null);
+                cb(RED._("calendar.error.error", { error: err.toString() }), null);
             } else if (data.error) {
-                cb(RED._("calendar.error.error-details", {code:data.error.code, message:JSON.stringify(data.error.message)}), null);
+                cb(RED._("calendar.error.error-details", { code: data.error.code, message: JSON.stringify(data.error.message) }), null);
             } else {
                 /* 0 - 10 events ending after now ordered by startTime
                  * so we find the first that starts after now to
@@ -300,7 +332,7 @@ module.exports = function(RED) {
         }
 
         var request = {
-            url: 'https://www.googleapis.com/calendar/v3/calendars/'+cal.id+'/events'
+            url: 'https://www.googleapis.com/calendar/v3/calendars/' + cal.id + '/events'
         };
         /* orderby: endTime is not permitted by API so for now this assumes
          * that events are not nested.
@@ -317,18 +349,18 @@ module.exports = function(RED) {
         if (msg.payload) {
             request.qs.q = RED.util.ensureString(msg.payload);
         }
-        var handle_response = function(err, data) {
+        var handle_response = function (err, data) {
             if (err) {
-                cb(RED._("calendar.error.error", {error:err.toString()}), null);
+                cb(RED._("calendar.error.error", { error: err.toString() }), null);
             } else if (data.error) {
-                cb(RED._("calendar.error.error-details", {code:data.error.code, message:JSON.stringify(data.error.message)}), null);
+                cb(RED._("calendar.error.error-details", { code: data.error.code, message: JSON.stringify(data.error.message) }), null);
             } else {
                 var ev;
                 /* 0 - 10 events ending after now ordered by startTime
                  * so we find the first that starts after now to
                  * give us the "next" event
                  */
-                for (var i = 0; i<data.items.length; i++) {
+                for (var i = 0; i < data.items.length; i++) {
                     ev = data.items[i];
                     var end = getEventDate(ev, 'end');
                     if (end && end.getTime() > after.getTime()) {
@@ -354,10 +386,10 @@ module.exports = function(RED) {
                 events: []
             };
         }
-        start = new Date(start.getTime()+node.offset); // apply offset
-        end = new Date(end.getTime()+node.offset); // apply offset
+        start = new Date(start.getTime() + node.offset); // apply offset
+        end = new Date(end.getTime() + node.offset); // apply offset
         var request = {
-            url: 'https://www.googleapis.com/calendar/v3/calendars/'+cal.id+'/events'
+            url: 'https://www.googleapis.com/calendar/v3/calendars/' + cal.id + '/events'
         };
         request.qs = {
             maxResults: 10,
@@ -365,7 +397,7 @@ module.exports = function(RED) {
             singleEvents: true,
             showDeleted: false,
             timeMin: start.toISOString(),
-            timeMax: (new Date(end.getTime() + 60*1000)).toISOString()
+            timeMax: (new Date(end.getTime() + 60 * 1000)).toISOString()
         };
         if (msg.payload) {
             request.qs.q = RED.util.ensureString(msg.payload);
@@ -373,11 +405,11 @@ module.exports = function(RED) {
         if (results.hasOwnProperty('nextPageToken')) {
             request.qs.pageToken = results.nextPageToken;
         }
-        node.google.request(request, function(err, data) {
+        node.google.request(request, function (err, data) {
             if (err) {
-                cb(RED._("calendar.error.error", {error:err.toString()}), null);
+                cb(RED._("calendar.error.error", { error: err.toString() }), null);
             } else if (data.error) {
-                cb(RED._("calendar.error.error-details", {code:data.error.code, message:JSON.stringify(data.error.message)}), null);
+                cb(RED._("calendar.error.error-details", { code: data.error.code, message: JSON.stringify(data.error.message) }), null);
             } else {
                 /* 0 - 10 events ending after now ordered by startTime
                  * so we find the first that starts after now to
@@ -387,12 +419,12 @@ module.exports = function(RED) {
                     var ev = data.items[i];
                     var evStart = getEventDate(ev);
                     if (evStart) {
-                         if (evStart.getTime() > end.getTime()) {
-                             // timeMax should catch these
-                             break;
-                         } else if (evStart.getTime() > start.getTime()) {
-                             results.events.push(ev);
-                         }
+                        if (evStart.getTime() > end.getTime()) {
+                            // timeMax should catch these
+                            break;
+                        } else if (evStart.getTime() > start.getTime()) {
+                            results.events.push(ev);
+                        }
                     }
                 }
                 if (data.hasOwnProperty('nextPageToken')) {
@@ -412,10 +444,10 @@ module.exports = function(RED) {
                 events: []
             };
         }
-        start = new Date(start.getTime()+node.offset); // apply offset
-        end = new Date(end.getTime()+node.offset); // apply offset
+        start = new Date(start.getTime() + node.offset); // apply offset
+        end = new Date(end.getTime() + node.offset); // apply offset
         var request = {
-            url: 'https://www.googleapis.com/calendar/v3/calendars/'+cal.id+'/events'
+            url: 'https://www.googleapis.com/calendar/v3/calendars/' + cal.id + '/events'
         };
         /* orderby: endTime is not permitted by API so for now events are
          * returned in startTime order rather than end time order which
@@ -428,7 +460,7 @@ module.exports = function(RED) {
             singleEvents: true,
             showDeleted: false,
             timeMin: start.toISOString(),
-            timeMax: (new Date(end.getTime() + 60*1000)).toISOString()
+            timeMax: (new Date(end.getTime() + 60 * 1000)).toISOString()
         };
         if (msg.payload) {
             request.qs.q = RED.util.ensureString(msg.payload);
@@ -436,11 +468,11 @@ module.exports = function(RED) {
         if (results.hasOwnProperty('nextPageToken')) {
             request.qs.pageToken = results.nextPageToken;
         }
-        node.google.request(request, function(err, data) {
+        node.google.request(request, function (err, data) {
             if (err) {
-                cb(RED._("calendar.error.error", {error:err.toString()}), null);
+                cb(RED._("calendar.error.error", { error: err.toString() }), null);
             } else if (data.error) {
-                cb(RED._("calendar.error.error-details", {code:data.error.code, message:JSON.stringify(data.error.message)}), null);
+                cb(RED._("calendar.error.error-details", { code: data.error.code, message: JSON.stringify(data.error.message) }), null);
             } else {
                 /* 0 - 10 events ending after now ordered by startTime
                  * so we find the first that starts after now to
@@ -450,11 +482,11 @@ module.exports = function(RED) {
                     var ev = data.items[i];
                     var evEnd = getEventDate(ev, 'end');
                     if (evEnd) {
-                         if (evEnd.getTime() > end.getTime()) {
-                             break;
-                         } else if (evEnd.getTime() > start.getTime()) {
-                             results.events.push(ev);
-                         }
+                        if (evEnd.getTime() > end.getTime()) {
+                            break;
+                        } else if (evEnd.getTime() > start.getTime()) {
+                            results.events.push(ev);
+                        }
                     }
                 }
                 if (data.hasOwnProperty('nextPageToken')) {
@@ -562,7 +594,7 @@ module.exports = function(RED) {
     }
 
     function GoogleCalendarOutNode(n) {
-        RED.nodes.createNode(this,n);
+        RED.nodes.createNode(this, n);
         this.google = RED.nodes.getNode(n.google);
         this.calendar = n.calendar || 'primary';
 
@@ -572,32 +604,32 @@ module.exports = function(RED) {
         }
 
         var node = this;
-        node.status({fill:"blue",shape:"dot",text:"calendar.status.querying"});
-        calendarList(node, function(err) {
+        node.status({ fill: "blue", shape: "dot", text: "calendar.status.querying" });
+        calendarList(node, function (err) {
             if (err) {
                 node.error(err);
-                node.status({fill:"red",shape:"ring",text:"calendar.status.failed"});
+                node.status({ fill: "red", shape: "ring", text: "calendar.status.failed" });
                 return;
             }
             node.status({});
 
-            node.on('input', function(msg) {
-                node.status({fill:"blue",shape:"dot",text:"calendar.status.creating"});
+            node.on('input', function (msg) {
+                node.status({ fill: "blue", shape: "dot", text: "calendar.status.creating" });
                 var cal = calendarByNameOrId(node, msg.calendar) ||
                     calendarByNameOrId(node, node.calendar);
                 if (!cal) {
-                    node.error(RED._("calendar.error.invalid-calendar"),msg);
-                    node.status({fill:"red",shape:"ring",text:"calendar.status.invalid-calendar"});
+                    node.error(RED._("calendar.error.invalid-calendar"), msg);
+                    node.status({ fill: "red", shape: "ring", text: "calendar.status.invalid-calendar" });
                     return;
                 }
                 var request = {
                     method: 'POST',
                 };
                 if (typeof msg.payload === 'object') {
-                    request.url = 'https://www.googleapis.com/calendar/v3/calendars/'+cal.id+'/events';
+                    request.url = 'https://www.googleapis.com/calendar/v3/calendars/' + cal.id + '/events';
                     request.body = msg.payload;
                 } else {
-                    request.url = 'https://www.googleapis.com/calendar/v3/calendars/'+cal.id+'/events/quickAdd';
+                    request.url = 'https://www.googleapis.com/calendar/v3/calendars/' + cal.id + '/events/quickAdd';
                     request.form = {
                         text: RED.util.ensureString(msg.payload)
                     };
@@ -607,13 +639,13 @@ module.exports = function(RED) {
                         sendNotifications: true
                     };
                 }
-                node.google.request(request, function(err, data) {
+                node.google.request(request, function (err, data) {
                     if (err) {
-                        node.error(err.toString(),msg);
-                        node.status({fill:"red",shape:"ring",text:"calendar.status.failed"});
+                        node.error(err.toString(), msg);
+                        node.status({ fill: "red", shape: "ring", text: "calendar.status.failed" });
                     } else if (data.error) {
-                        node.error(data.error.message,msg);
-                        node.status({fill:"red",shape:"ring",text:"calendar.status.failed"});
+                        node.error(data.error.message, msg);
+                        node.status({ fill: "red", shape: "ring", text: "calendar.status.failed" });
                     } else {
                         node.status({});
                     }
@@ -622,4 +654,25 @@ module.exports = function(RED) {
         });
     }
     RED.nodes.registerType("google calendar out", GoogleCalendarOutNode);
+
+    RED.httpAdmin.get('/cal', function (req, res) {
+        var googleId = res.socket.parser.incoming._parsedUrl.path.split("id=")[1];
+        RED.nodes.getNode(googleId).request('https://www.googleapis.com/calendar/v3/users/me/calendarList', function (err, data) {
+            if (err) return;
+            var arrCalendar = [];
+
+            for (var i = 0; i < data.items.length; i++) {
+                var cal = data.items[i];
+                arrCalendar.push({ id: cal.id, summary: cal.summary ? cal.summary : cal.id })
+            }
+            arrCalendar.sort(function compare(a, b) {
+                const aSummary = a.summary.toUpperCase()
+                const bSummary = b.summary.toUpperCase()
+                if (aSummary > bSummary) return 1;
+                if (bSummary > aSummary) return -1;
+                return 0;
+            })
+            res.json(arrCalendar)
+        })
+    })
 };