New Particle.io Plugin for Telegraf

Only the tests need to be fixed.

plugins/inputs/webhooks/particle/README.md

@@ -0,0 +1,27 @@
+# particle webhooks
+
+You should configure your Rollbar's Webhooks to point at the `webhooks` service. To do this go to `particle.com/` and click `Settings > Notifications > Webhook`. In the resulting page set `URL` to `http://<my_ip>:1619/particle`, and click on `Enable Webhook Integration`.
+
+## Events
+
+Your Particle device should publish an event that contains a JSON in the form of:
+```
+String data = String::format("{ \"tags\" : {
+	    \"tag_name\": \"tag_value\", 
+	    \"other_tag\": \"other_value\"
+    }, 
+	\"values\": {
+	    \"value_name\": %f, 
+		\"other_value\": %f, 
+    }
+    }",  value_value, other_value
+	);
+    Particle.publish("event_name", data, PRIVATE);
+```
+Escaping the "" is required in the source file.
+The number of tag values and field values is not restrictied so you can send as many values per webhook call as you'd like.
+
+You will need to enable JSON messages in the Webhooks setup of Particle.io
+
+See [webhook doc](https://docs.particle.io/reference/webhooks/)
+

plugins/inputs/webhooks/particle/particle_webhooks.go

@@ -0,0 +1,46 @@
+package particle
+
+import (
+	"encoding/json"
+	"github.com/gorilla/mux"
+	"github.com/influxdata/telegraf"
+	"io/ioutil"
+	"log"
+	"net/http"
+)
+
+type ParticleWebhook struct {
+	Path string
+	acc  telegraf.Accumulator
+}
+
+func (rb *ParticleWebhook) Register(router *mux.Router, acc telegraf.Accumulator) {
+	router.HandleFunc(rb.Path, rb.eventHandler).Methods("POST")
+	log.Printf("I! Started the webhooks_particle on %s\n", rb.Path)
+	rb.acc = acc
+}
+
+func (rb *ParticleWebhook) eventHandler(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	data, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+	dummy := &DummyData{}
+	if err := json.Unmarshal(data, dummy); err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+	pd := &ParticleData{}
+	if err := json.Unmarshal([]byte(dummy.Data), pd); err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+	pTime, err := dummy.Time()
+	if err != nil {
+		log.Printf("Time Conversion Error")
+	}
+	rb.acc.AddFields("particle_webhooks", pd.Fields, pd.Tags, pTime)
+	w.WriteHeader(http.StatusOK)
+}

plugins/inputs/webhooks/particle/particle_webhooks_events.go

@@ -0,0 +1,21 @@
+package particle
+
+import (
+	"time"
+)
+
+type DummyData struct {
+	Event       string `json:"event"`
+	Data        string `json:"data"`
+	Ttl         int    `json:"ttl"`
+	PublishedAt string `json:"published_at"`
+}
+type ParticleData struct {
+	Event  string                 `json:"event"`
+	Tags   map[string]string      `json:"tags"`
+	Fields map[string]interface{} `json:"values"`
+}
+
+func (d *DummyData) Time() (time.Time, error) {
+	return time.Parse("2006-01-02T15:04:05Z", d.PublishedAt)
+}

plugins/inputs/webhooks/particle/particle_webhooks_events_json_test.go

@@ -0,0 +1,38 @@
+package particle
+
+func NewItemJSON() string {
+	return `
+	{ 
+	  "event": "temperature",
+	  "data": "{ 
+		  "tags": {
+			  "id": "230035001147343438323536", 
+			  "location\": \"TravelingWilbury"
+		  }, 
+		  "values": {
+			  "temp_c": 26.680000, 
+			  "temp_f": 80.024001, 
+			  "humidity": 44.937500, 
+			  "pressure": 998.998901, 
+			  "altitude": 119.331436, 
+			  "broadband": 1266, 
+			  "infrared": 528, 
+			  "lux": 0
+		  }
+	  }",
+	  "ttl": 60,
+	  "published_at": "2017-09-28T21:54:10.897Z",
+	  "coreid": "123456789938323536",
+	  "userid": "1234ee123ac8e5ec1231a123d",
+	  "version": 10,
+	  "public": false,
+	  "productID": 1234,
+	  "name": "sensor"
+  }`
+}
+func UnknowJSON() string {
+	return `
+    {
+      "event": "roger"
+    }`
+}

plugins/inputs/webhooks/particle/particle_webhooks_test.go

@@ -0,0 +1,48 @@
+package particle
+
+import (
+	"github.com/influxdata/telegraf/testutil"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+func postWebhooks(rb *ParticleWebhook, eventBody string) *httptest.ResponseRecorder {
+	req, _ := http.NewRequest("POST", "/", strings.NewReader(eventBody))
+	log.Printf("eventBody: %s\n", eventBody)
+	w := httptest.NewRecorder()
+	w.Code = 500
+
+	rb.eventHandler(w, req)
+
+	return w
+}
+
+func TestNewItem(t *testing.T) {
+	var acc testutil.Accumulator
+	rb := &ParticleWebhook{Path: "/particle", acc: &acc}
+	resp := postWebhooks(rb, NewItemJSON())
+	if resp.Code != http.StatusOK {
+		t.Errorf("POST new_item returned HTTP status code %v.\nExpected %v", resp.Code, http.StatusOK)
+	}
+
+	fields := map[string]interface{}{
+		"temp_c": 26.680000,
+	}
+
+	tags := map[string]string{
+		"id":       "230035001147343438323536",
+		"location": "TravelingWilbury",
+	}
+
+	acc.AssertContainsTaggedFields(t, "particle_webhooks", fields, tags)
+}
+func TestUnknowItem(t *testing.T) {
+	rb := &ParticleWebhook{Path: "/particle"}
+	resp := postWebhooks(rb, UnknowJSON())
+	if resp.Code != http.StatusOK {
+		t.Errorf("POST unknown returned HTTP status code %v.\nExpected %v", resp.Code, http.StatusOK)
+	}
+}

plugins/inputs/webhooks/webhooks.go

@@ -15,6 +15,7 @@ import (
 	"github.com/influxdata/telegraf/plugins/inputs/webhooks/github"
 	"github.com/influxdata/telegraf/plugins/inputs/webhooks/mandrill"
 	"github.com/influxdata/telegraf/plugins/inputs/webhooks/papertrail"
+	"github.com/influxdata/telegraf/plugins/inputs/webhooks/particle"
 	"github.com/influxdata/telegraf/plugins/inputs/webhooks/rollbar"
 )
 
@@ -34,6 +35,7 @@ type Webhooks struct {
 	Mandrill   *mandrill.MandrillWebhook
 	Rollbar    *rollbar.RollbarWebhook
 	Papertrail *papertrail.PapertrailWebhook
+	Particle   *particle.ParticleWebhook
 
 	srv *http.Server
 }
@@ -62,6 +64,9 @@ func (wb *Webhooks) SampleConfig() string {
 
   [inputs.webhooks.papertrail]
     path = "/papertrail"
+    
+  [inputs.webhooks.particle]
+      path = "/particle"
  `
 }