diff --git a/smartapps/lightenginernd/web-services-smartapp.src/web-services-smartapp.groovy b/smartapps/lightenginernd/web-services-smartapp.src/web-services-smartapp.groovy
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+++ b/smartapps/lightenginernd/web-services-smartapp.src/web-services-smartapp.groovy
@@ -0,0 +1,95 @@
+/**
+ *  Web Services SmartApp
+ *
+ *  Copyright 2017 Light Engine R&D
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ *  in compliance with the License. You may obtain a copy of the License at:
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed
+ *  on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License
+ *  for the specific language governing permissions and limitations under the License.
+ *
+ */
+definition(
+    name: "Web Services SmartApp",
+    namespace: "lightenginernd",
+    author: "Light Engine R&D",
+    description: "Web Services SmartApp 1st",
+    category: "",
+    iconUrl: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience.png",
+    iconX2Url: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience@2x.png",
+    iconX3Url: "https://s3.amazonaws.com/smartapp-icons/Convenience/Cat-Convenience@2x.png",
+    oauth: [displayName: "Web Services SmartApp", displayLink: "http://localhost:4567"]
+)
+
+preferences {
+  section ("Allow external service to control these things...") {
+    input "switches", "capability.switch", multiple: true, required: true
+  }
+}
+
+mappings {
+  path("/switches") {
+    action: [
+      GET: "listSwitches"
+    ]
+  }
+  path("/switches/:command") {
+    action: [
+      PUT: "updateSwitches"
+    ]
+  }
+}
+
+// returns a list like
+// [[name: "kitchen lamp", value: "off"], [name: "bathroom", value: "on"]]
+def listSwitches() {
+
+    def resp = []
+    switches.each {
+        resp << [name: it.displayName, value: it.currentValue("switch")]
+    }
+    return resp
+}
+
+void updateSwitches() {
+    // use the built-in request object to get the command parameter
+    def command = params.command
+
+    // all switches have the comand
+    // execute the command on all switches
+    // (note we can do this on the array - the command will be invoked on every element
+    switch(command) {
+        case "on":
+            switches.on()
+            break
+        case "off":
+            switches.off()
+            break
+        default:
+            httpError(400, "$command is not a valid command for all switches specified")
+    }
+
+}
+
+def installed() {
+	log.debug "Installed with settings: ${settings}"
+
+	initialize()
+}
+
+def updated() {
+	log.debug "Updated with settings: ${settings}"
+
+	unsubscribe()
+	initialize()
+}
+
+def initialize() {
+	// TODO: subscribe to attributes, devices, locations, etc.
+}
+
+// TODO: implement event handlers
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