Add changecolorintent

.gitignore

 fwatchdog
+**/node_modules/

gateway/server.go

@@ -116,10 +116,9 @@ func makeProxy(metrics metrics.MetricOptions) http.HandlerFunc {
 					len(alexaService.Request.Intent.Name) > 0 {
 					fmt.Println("Alexa skill detected")
 					invokeService(w, r, metrics, alexaService.Request.Intent.Name, requestBody)
-
 				} else {
 					w.WriteHeader(http.StatusBadRequest)
-					w.Write([]byte("Provide an x-function header."))
+					w.Write([]byte("Provide an x-function header or a valid Alexa SDK request."))
 				}
 			}
 		}

sample-functions/ChangeColorIntent/Dockerfile

+FROM alpine:latest
+RUN apk --update add nodejs
+COPY ./fwatchdog /usr/bin/
+
+COPY package.json   .
+COPY handler.js     .
+COPY sendColor.js   .
+COPY sample.json    .
+
+RUN npm i
+ENV fprocess="node handler.js"
+CMD ["fwatchdog"]

sample-functions/ChangeColorIntent/handler.js

+"use strict"
+let fs = require('fs');
+let sample = require("./sample.json");
+let SendColor = require('./sendColor');
+let sendColor = new SendColor("alexellis.io/tree1")
+
+var content = '';
+process.stdin.resume();
+process.stdin.on('data', function(buf) { content += buf.toString(); });
+process.stdin.on('end', function() {
+  let request = JSON.parse(content);
+  handle(request, request.request.intent);
+});
+
+function tellWithCard(speechOutput) {
+  sample.response.outputSpeech.text = speechOutput
+  sample.response.card.content = speechOutput
+  sample.response.card.title = "Christmas Lights";
+  console.log(JSON.stringify(sample));
+  process.exit(0);
+}
+
+function handle(request,intent) {
+  let colorRequested = intent.slots.LedColor.value;
+  let req = {r:0,g:0,b:0};
+  if(colorRequested == "red") { 
+    req.r = 255;
+  } else if(colorRequested== "blue") {
+      req.b = 255;
+  } else if (colorRequested == "green") {
+      req.g = 255;
+  }
+  else {
+      tellWithCard("I heard "+colorRequested+ " but can only do: red, green, blue.", "I heard "+colorRequested+ " but can only do: red, green, blue.");
+  }
+  var speechOutput = "OK, "+colorRequested+".";
+  sendColor.sendColor(req, () => {
+    tellWithCard(speechOutput);
+  });
+}
\ No newline at end of file

sample-functions/ChangeColorIntent/oneshot.txt

+docker build -t changecolorintent . ; docker service rm ChangeColorIntent ; docker service create --network=functions --name ChangeColorIntent changecolorintent

sample-functions/ChangeColorIntent/package.json

+{
+  "name": "src",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "mqtt": "^2.0.1"
+  }
+}

sample-functions/ChangeColorIntent/sample.json

+{
+  "version": "1.0",
+  "response": {
+    "outputSpeech": {
+      "type": "PlainText",
+      "text": "There's currently 6 people in space"
+    },
+    "card": {
+      "content": "There's currently 6 people in space",
+      "title": "People in space",
+      "type": "Simple"
+    },
+    "shouldEndSession": true
+  },
+  "sessionAttributes": {}
+}

sample-functions/ChangeColorIntent/sendColor.js

+"use strict"
+
+var mqtt = require('mqtt');
+
+class Send {
+  constructor(topic) {
+    this.topic = topic;
+  }
+
+  sendIntensity(req, done) {
+    var ops = { port: 1883, host: "iot.eclipse.org" };
+
+    var client = mqtt.connect(ops);
+
+    client.on('connect', () => {
+      console.log("Connected");
+      let payload = req;
+      let cb = () => {
+        done();
+      };
+      client.publish(this.topic, JSON.stringify(payload), {qos: 1}, cb);
+    });
+  }
+
+  sendColor(req, done) {
+    var ops = { port: 1883, host: "iot.eclipse.org" };
+
+    var client = mqtt.connect(ops);
+    let cb = () => {
+      done();
+    };
+    client.on('connect', () => {
+      console.log("Connected");
+      let payload = req;
+      client.publish(this.topic, JSON.stringify(payload), {qos: 1}, cb);
+    });
+  }
+}
+
+module.exports = Send;
\ No newline at end of file

sample-functions/HostnameIntent/oneshot.txt

+docker build -t hostnameintent . ; docker service rm HostnameIntent ; docker service create --network=functions --name HostnameIntent hostnameintent

watchdog/main.go

@@ -13,8 +13,8 @@ import (
 func main() {
 	s := &http.Server{
 		Addr:           ":8080",
-		ReadTimeout:    2 * time.Second,
-		WriteTimeout:   2 * time.Second,
+		ReadTimeout:    500 * time.Millisecond,
+		WriteTimeout:   1 * time.Second,
 		MaxHeaderBytes: 1 << 20,
 	}
 
@@ -39,4 +39,3 @@ func main() {
 
 	log.Fatal(s.ListenAndServe())
 }
-