Added example for writing MTConnect Observations to an InfluxDB database

docs/InfluxDB.md

@@ -0,0 +1,48 @@
+# MTConnect > InfluxDB
+Uses the MTConnect.NET MTConnectHttpClient class to read from an MTConnect Agent and write that data to an InfluxDB database
+
+## Example
+```c#
+using InfluxDB.Client;
+using InfluxDB.Client.Api.Domain;
+using InfluxDB.Client.Writes;
+using MTConnect.Clients;
+using MTConnect.Observations;
+using MTConnect.Streams;
+
+var influxServer = "https://eastus-1.azure.cloud2.influxdata.com";
+var influxToken = "klajsdfdslkfjdslkfjsdlkfjlsdkjflakdsjf";
+var influxOrganization = "example";
+
+// Setup InfluxDB Client
+var influxClient = new InfluxDBClient(influxServer, influxToken);
+
+// Setup MTConnect Client (over HTTP)
+var mtconnectClient = new MTConnectHttpClient("http://localhost:5000");
+mtconnectClient.OnCurrentReceived += ObservationsReceived;
+mtconnectClient.OnSampleReceived += ObservationsReceived;
+mtconnectClient.Start();
+
+Console.ReadLine();
+
+mtconnectClient.Stop();
+
+void ObservationsReceived(object sender, IStreamsResponseDocument response)
+{
+    using (var write = influxClient.GetWriteApi())
+    {
+        var records = new List<PointData>();
+
+        foreach (var observation in response.GetObservations())
+        {
+            var key = $"{observation.DeviceUuid}.{observation.DataItemId}";
+            records.Add(PointData.Measurement(key)
+            .Field("value", observation.GetValue(ValueKeys.Result))
+            .Timestamp(observation.Timestamp, WritePrecision.Us));
+        }
+
+        // Write Records
+        write.WritePoints(records, "MTConnect.Streams", influxOrganization);
+    }
+}
+```