fix(pkg/server): logging and save values into postgres

pkg/cli/cli.go

@@ -86,7 +86,7 @@ func PrintSensors(cnf *config.Configuration, w io.Writer) error {
 		}
 
 		if sensor.I2CAddress != nil {
-			fmt.Fprintf(tw, "%v\t", string(*sensor.I2CAddress))
+			fmt.Fprintf(tw, "%#v\t", *sensor.I2CAddress)
 		} else {
 			fmt.Fprintf(tw, "\t")
 		}

pkg/daemon/cache.go

@@ -1,7 +1,7 @@
 package daemon
 
 import (
-	"fmt"
+	"context"
 	"net/url"
 	"sync"
 
@@ -56,7 +56,7 @@ func (cs *cacheStore) WriteToEndpoint() error {
 	case "file":
 		return cs.logfile()
 	case "postgres":
-		return fmt.Errorf("Not yet implemented to store values into a postgres database")
+		return cs.postgres()
 	}
 	return nil
 }
@@ -91,3 +91,8 @@ func (cs *cacheStore) logfile() error {
 
 	return nil
 }
+
+func (cs *cacheStore) postgres() error {
+	ctx := context.Background()
+	return storage.Write(ctx, cs.cache, cs.URL)
+}

pkg/daemon/daemon.go

@@ -15,9 +15,13 @@ import (
 )
 
 var (
-	flogger = logger.NewDefaultLogger(logger.LogLevelDebug)
+	flogger = logger.NewSilentLogger()
 )
 
+func SetLogger(logger logger.Logger) {
+	flogger = logger
+}
+
 // Start the daemon
 func Start(cnf *config.Configuration, cacheSize uint, compression bool, round float64) error {
 
@@ -129,7 +133,10 @@ func Start(cnf *config.Configuration, cacheSize uint, compression bool, round fl
 			flogger.Fatal("Received a fatal error: %v", fatal)
 		case <-interruptChannel:
 			flogger.Debug("Write %v cached values into storage endpoint", cache.Size())
-			cache.WriteToEndpoint()
+			err := cache.WriteToEndpoint()
+			if err != nil {
+				flogger.Error("%v", err)
+			}
 			flogger.Debug("Close context")
 			cancel()
 			flogger.Debug("Close channels")