configuration done in conf/conf.go init()

conf/conf.go

@@ -1,6 +1,11 @@
 package conf
 
-import "sync"
+import (
+	"sync"
+
+	"github.com/beego/beego/logs"
+	"github.com/goraz/onion"
+)
 
 type Config struct {
 	OcCatalogUrl string
@@ -9,6 +14,41 @@ type Config struct {
 var instance *Config
 var once sync.Once
 
+const defaultConfigFile = "/etc/oc/search.json"
+const localConfigFile = "./local_search.json"
+
+
+func init(){
+	
+	configFile := ""
+	var o *onion.Onion
+
+	l3 := onion.NewEnvLayerPrefix("_", "OCSEARCH_")
+	l2, err := onion.NewFileLayer(defaultConfigFile, nil)
+	if err == nil {
+		logs.Info("Config file found : " + defaultConfigFile)
+		configFile = defaultConfigFile
+	}
+	l1, err := onion.NewFileLayer(localConfigFile, nil)
+	if err == nil {
+		logs.Info("Local config file found " + localConfigFile + ", overriding default file")
+		configFile = localConfigFile
+	}
+	if configFile == "" {
+		logs.Info("No config file found, using env")
+		o = onion.New(l3)
+	} else if l1 == nil && l2 == nil {
+		o = onion.New(l1, l2, l3)
+	} else if l1 == nil {
+		o = onion.New(l2, l3)
+	} else if l2 == nil {
+		o = onion.New(l1, l3)
+	}
+
+	GetConfig().OcCatalogUrl = o.GetStringDefault("oc-catalog", "localhost:49618")
+	
+}
+
 func GetConfig() *Config {
 	once.Do(func() {
 		instance = &Config{}

controllers/default.go

@@ -2,6 +2,7 @@ package controllers
 
 import (
 	OCCatalog_cli "oc-search/api-client/oc-catalog"
+	conf "oc-search/conf"
 
 	"github.com/beego/beego/logs"
 	beego "github.com/beego/beego/v2/server/web"
@@ -14,6 +15,11 @@ type MainController struct {
 
 var OCCatalogAPI *OCCatalog_cli.APIClient
 
+// This method should not be called init() because it will
+// lead to the parameter BasePath to not be able to
+// retrieve its value from a config file, that will
+// be read after the init has happened (at import of the package)
+
 func init() {
 
 	// OcCatalogURL := conf.GetConfig().OcCatalogUrl
@@ -22,7 +28,7 @@ func init() {
 	// }
 
 	// auth := context.WithValue(context.Background(), OCCatalog_cli.ContextAPIKey, OCCatalog_cli.APIKey{Key: "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdXRob3JpemVkIjp0cnVlLCJleHAiOjE2MTI1OTI3MDIsInVzZXJfaWQiOiJ4ZCJ9.kTLb1FtpdnaobUpe5u9Jw8S7Cc6gf7ExmU4U3XMcC2o"})
-	OCCatalogAPI = OCCatalog_cli.NewAPIClient(&OCCatalog_cli.Configuration{BasePath: "http://"+ "oc-catalog:8080" +"/v1",
+	OCCatalogAPI = OCCatalog_cli.NewAPIClient(&OCCatalog_cli.Configuration{BasePath: "http://"+ conf.GetConfig().OcCatalogUrl +"/v1",
 		DefaultHeader: map[string]string{
 			"authorization": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdXRob3JpemVkIjp0cnVlLCJleHAiOjE2MTMwMDI0NjAsInVzZXJfaWQiOiJhc2QifQ.TXT18aeulnCrtedKKFVaD0BapOTdVAFcJJdVS7zk0I8",
 		},

main.go

@@ -7,7 +7,6 @@ import (
 
 	"github.com/beego/beego/logs"
 	beego "github.com/beego/beego/v2/server/web"
-	"github.com/goraz/onion"
 )
 
 const defaultConfigFile = "/etc/oc/search.json"
@@ -17,31 +16,7 @@ func main() {
 	log := logs.NewLogger(10000)
 	log.SetLogger("console")
 
-	configFile := ""
-	var o *onion.Onion
-	l3 := onion.NewEnvLayerPrefix("_", "OCSEARCH_")
-	l2, err := onion.NewFileLayer(defaultConfigFile, nil)
-	if err == nil {
-		logs.Info("Config file found : " + defaultConfigFile)
-		configFile = defaultConfigFile
-	}
-	l1, err := onion.NewFileLayer(localConfigFile, nil)
-	if err == nil {
-		logs.Info("Local config file found " + localConfigFile + ", overriding default file")
-		configFile = localConfigFile
-	}
-	if configFile == "" {
-		logs.Info("No config file found, using env")
-		o = onion.New(l3)
-	} else if l1 == nil && l2 == nil {
-		o = onion.New(l1, l2, l3)
-	} else if l1 == nil {
-		o = onion.New(l2, l3)
-	} else if l2 == nil {
-		o = onion.New(l1, l3)
-	}
 
-	conf.GetConfig().OcCatalogUrl = o.GetStringDefault("oc-catalog", "localhost:49618")
 	beego.BConfig.WebConfig.Session.SessionOn = true
 	beego.SetStaticPath("/favicon.ico", "/static/favicon.ico")
 	beego.BConfig.WebConfig.DirectoryIndex = true