added safe check

README.md

@@ -310,4 +310,11 @@ for repositories. [Dependabot][dependabot-link] will implicitly create the
 `dependencies` label with the first pull request raised by it.
 
 The remaining labels can be created as needed!
-<br>
+<br>
+
+## TODO:
+1. Limit the number of go worker should be user input
+2. Page input should be a range of pages (need to rewrite apifech function & others)
+3. Resolution shlould be fzf style multi-select (will try to apply on other fields)
+: 
+: 

src/cmd/root.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+	"log"
 	"os"
 
 	"github.com/spf13/cobra"
@@ -27,6 +28,10 @@ var rootCmd = &cobra.Command{
 	Run: func(cmd *cobra.Command, args []string) {
 		url := app.GetFullURL(page, categories, purity, sorting, colors, query)
 		searchList, _ := app.FetchAPI(url)
+		if len(searchList.Data) <= 0 {
+			log.Panicln("Unable to fetch data form api url: ", url)
+			os.Exit(1)
+		}
 		app.Downloader(&searchList, dir)
 	},
 }

src/config.go

@@ -104,8 +104,7 @@ func init() {
 		viper.SetConfigFile(fmt.Sprintf("%s/.go-wallhaven", os.Getenv("HOME")))
 		viper.SetConfigType("json")
 		if err := viper.ReadInConfig(); err != nil {
-			log.Fatalf("Error reading config file, %s", err)
-			os.Exit(1)
+			log.Printf("Error reading config file, %s\n", err)
 		}
 		apikey = viper.GetString("API_KEY")
 		dir = viper.GetString("DIR")