lint issues

exporter.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"encoding/json"
+	"errors"
 	"flag"
 	"fmt"
 	"io/ioutil"
@@ -135,7 +136,7 @@ func (s *appScraper) stats() (*AppStats, error) {
 	// validate returned json is complete
 	// requestCounter and requestRates should be empty maps, so we are fine here
 	if stats.Duration == nil {
-		return nil, fmt.Errorf("Invalid JSON returned, could not retreive duration.*")
+		return nil, errors.New("Invalid JSON returned, could not retrieve duration")
 	}
 
 	return &stats, err
@@ -157,6 +158,7 @@ func (e *Exporter) Describe(ch chan<- *prometheus.Desc) {
 
 }
 
+// Collect implements prometheus.Describe.Collect
 func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
 
 	stats, err := e.scraper.stats()
@@ -205,6 +207,7 @@ func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
 
 }
 
+// NewExporter creates a new prometheus exporter and app scraper
 func NewExporter(endpoint string) (*Exporter, error) {
 
 	if !strings.Contains(endpoint, "://") {