use newJellyfin instead of constructor method

jfapi.go

@@ -54,7 +54,8 @@ func (jf *Jellyfin) timeoutHandler() {
 	}
 }
 
-func (jf *Jellyfin) init(server, client, version, device, deviceId string) error {
+func newJellyfin(server, client, version, device, deviceId string) (*Jellyfin, error) {
+	jf := &Jellyfin{}
 	jf.server = server
 	jf.client = client
 	jf.version = version
@@ -84,7 +85,7 @@ func (jf *Jellyfin) init(server, client, version, device, deviceId string) error
 	}
 	jf.cacheLength = 30
 	jf.cacheExpiry = time.Now()
-	return nil
+	return jf, nil
 }
 
 func (jf *Jellyfin) authenticate(username, password string) (map[string]interface{}, int, error) {

main.go

@@ -43,8 +43,8 @@ type appContext struct {
 	jellyfinLogin    bool
 	users            []User
 	invalidTokens    []string
-	jf               Jellyfin
-	authJf           Jellyfin
+	jf               *Jellyfin
+	authJf           *Jellyfin
 	datePattern      string
 	timePattern      string
 	storage          Storage
@@ -266,14 +266,14 @@ func main() {
 		}
 
 		server := app.config.Section("jellyfin").Key("server").String()
-		app.jf.init(server, "jfa-go", app.version, "hrfee-arch", "hrfee-arch")
+		app.jf, _ = newJellyfin(server, "jfa-go", app.version, "hrfee-arch", "hrfee-arch")
 		var status int
 		_, status, err = app.jf.authenticate(app.config.Section("jellyfin").Key("username").String(), app.config.Section("jellyfin").Key("password").String())
 		if status != 200 || err != nil {
 			app.err.Fatalf("Failed to authenticate with Jellyfin @ %s: Code %d", server, status)
 		}
 		app.info.Printf("Authenticated with %s", server)
-		app.authJf.init(server, "jfa-go", app.version, "auth", "auth")
+		app.authJf, _ = newJellyfin(server, "jfa-go", app.version, "auth", "auth")
 
 		app.loadStrftime()
 

setup.go

@@ -13,8 +13,7 @@ type testReq struct {
 func (app *appContext) TestJF(gc *gin.Context) {
 	var req testReq
 	gc.BindJSON(&req)
-	tempjf := Jellyfin{}
-	tempjf.init(req.Host, "jfa-go-setup", app.version, "auth", "auth")
+	tempjf, _ := newJellyfin(req.Host, "jfa-go-setup", app.version, "auth", "auth")
 	tempjf.noFail = true
 	_, status, err := tempjf.authenticate(req.Username, req.Password)
 	if !(status == 200 || status == 204) || err != nil {