Add sink for InfluxDB (with the original InfluxDB client)

sinks/influxSink.go

@@ -0,0 +1,44 @@
+package sinks
+
+import (
+	"context"
+	"fmt"
+	influxdb2 "github.com/influxdata/influxdb-client-go/v2"
+	influxdb2Api "github.com/influxdata/influxdb-client-go/v2/api"
+	"log"
+	"time"
+)
+
+type InfluxSink struct {
+	Sink
+	client       influxdb2.Client
+	writeApi     influxdb2Api.WriteAPIBlocking
+	retPolicy    string
+	organization string
+}
+
+func (s *InfluxSink) Init(host string, port string, user string, password string, database string) error {
+	s.host = host
+	s.port = port
+	s.user = user
+	s.password = password
+	s.database = database
+	s.organization = ""
+	uri := fmt.Sprintf("http://%s:%s", host, port)
+	auth := fmt.Sprintf("%s:%s", user, password)
+	log.Print("Using URI ", uri, " for connection")
+	s.client = influxdb2.NewClient(uri, auth)
+	s.writeApi = s.client.WriteAPIBlocking(s.organization, s.database)
+	return nil
+}
+
+func (s *InfluxSink) Write(measurement string, tags map[string]string, fields map[string]interface{}, t time.Time) error {
+	p := influxdb2.NewPoint(measurement, tags, fields, t)
+	err := s.writeApi.WritePoint(context.Background(), p)
+	return err
+}
+
+func (s *InfluxSink) Close() {
+	log.Print("Closing InfluxDB connection")
+	s.client.Close()
+}

sinks/sink.go

@@ -0,0 +1,19 @@
+package sinks
+
+import (
+	"time"
+)
+
+type Sink struct {
+	host     string
+	port     string
+	user     string
+	password string
+	database string
+}
+
+type SinkFuncs interface {
+	Init(host string, port string, user string, password string, database string) error
+	Write(measurement string, tags map[string]string, fields map[string]interface{}, t time.Time) error
+	Close()
+}