Migrate to Go 1.18 (#45)

* Migrate to Go 1.18 and add linters

cookie.go

@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"log"
 	"net/http"
 )
 
@@ -22,15 +23,21 @@ func stateCookie(r *http.Request) (string, error) {
 	if err != nil {
 		return "", err
 	}
+
 	return stateCookie.Value, nil
 }
 
-func setClaimsCookie(w http.ResponseWriter, claims map[string]interface{}) {
-	b, _ := json.Marshal(claims)
+func setClaimsCookie(w http.ResponseWriter, claims map[string]any) {
+	b, err := json.Marshal(claims)
+	if err != nil {
+		log.Println(err)
+
+		return
+	}
 	http.SetCookie(w, &http.Cookie{Name: userSessionCookie, Value: base64.StdEncoding.EncodeToString(b)})
 }
 
-func claimsCookie(r *http.Request) (map[string]interface{}, bool, error) {
+func claimsCookie(r *http.Request) (map[string]any, bool, error) {
 	userCookie, err := r.Cookie(userSessionCookie)
 	if err != nil {
 		return nil, true, nil
@@ -41,9 +48,10 @@ func claimsCookie(r *http.Request) (map[string]interface{}, bool, error) {
 		return nil, false, fmt.Errorf("could not decode cookie: %w", err)
 	}
 
-	var claims map[string]interface{}
+	var claims map[string]any
 	if err := json.Unmarshal(b, &claims); err != nil {
 		return nil, false, errors.New("claims not in session")
 	}
+
 	return claims, false, err
 }