fix: golint check passed

CHANGELOG.md

@@ -11,6 +11,7 @@ Which is based on [Keep A Changelog](http://keepachangelog.com/)
 
 - too many open files close with influxdb connection
 - add license in code file
+- golint check passed 
 
 ## v1.0.0 - 2019-08-14
 

config.go

@@ -23,6 +23,7 @@ import (
   yaml "gopkg.in/yaml.v2"
 )
 
+// Config struct contains all options
 type Config struct {
   InfluxDB struct {
     URL         string   `yaml:"url"`
@@ -32,13 +33,14 @@ type Config struct {
     Password    string   `yaml:"password"`
   }                      `yaml:"influxdb"`
   OpenWeatherMap struct {
-    ApiKey      string   `yaml:"api_key"`
+    APIKey      string   `yaml:"api_key"`
     Units       string   `yaml:"units"`
   }                      `yaml:"openweathermap"`
   Cities        []string `yaml:"cities"`
   Interval      int64    `yaml:"interval"`
 }
 
+// Load the config from a file
 func (c *Config) Load(path string) error {
   data, err := ioutil.ReadFile(path)
   if err != nil {
@@ -59,6 +61,7 @@ func (c *Config) Load(path string) error {
   return nil
 }
 
+// Defaults set options with default value
 func (c *Config) Defaults() {
   if c.OpenWeatherMap.Units == "" {
     c.OpenWeatherMap.Units = "metric"
@@ -77,12 +80,13 @@ func (c *Config) Defaults() {
   }
 }
 
+// Check if the options are good
 func (c *Config) Check() error {
   if c.InfluxDB.Database == "" {
     return fmt.Errorf("you must specify influxdb.database in config file")
   }
 
-  if c.OpenWeatherMap.ApiKey == "" {
+  if c.OpenWeatherMap.APIKey == "" {
     return fmt.Errorf("you must specify api_key in config file")
   }
 

main.go

@@ -23,6 +23,7 @@ import (
   "time"
 )
 
+// Options and OpenWeatherMap URI
 var (
   URI = "https://api.openweathermap.org/data/2.5"
   CONFIG = flag.String("config", "", "config file path")

weather.go

@@ -26,11 +26,13 @@ import (
   influx "github.com/influxdata/influxdb1-client/v2"
 )
 
+// Weather is the main struct
 type Weather struct {
   Config Config
   WeatherDatas []WeatherData
 }
 
+// WeatherData contains weather data from openweathermap
 type WeatherData struct {
   City string           `json:"name"`
   Main struct {
@@ -58,6 +60,7 @@ type WeatherData struct {
   }                     `json:"sys"`
 }
 
+// FetchData from OpenWeatherMap API
 func (w *Weather) FetchData() {
   for _, city := range w.Config.Cities {
     resp, err := http.Get(
@@ -65,7 +68,7 @@ func (w *Weather) FetchData() {
         "%s/weather?q=%s&appid=%s&units=%s",
         URI,
         city,
-        w.Config.OpenWeatherMap.ApiKey,
+        w.Config.OpenWeatherMap.APIKey,
         w.Config.OpenWeatherMap.Units,
       ),
     )
@@ -87,6 +90,7 @@ func (w *Weather) FetchData() {
   }
 }
 
+// SendToInfluxDB send data in influxdb
 func (w *Weather) SendToInfluxDB() error {
   conn, err := influx.NewHTTPClient(influx.HTTPConfig{
     Addr: w.Config.InfluxDB.URL,