Auth: Use camelCase in SSO Settings API (#79755)

use camelCase in SSO Settings API

pkg/services/ssosettings/models/models.go

@@ -4,6 +4,8 @@ import (
 	"encoding/json"
 	"fmt"
 	"time"
+
+	"github.com/grafana/grafana/pkg/services/featuremgmt/strcase"
 )
 
 type SettingsSource int
@@ -39,4 +41,42 @@ func (s SSOSettings) TableName() string {
 	return "sso_setting"
 }
 
-// TODO: check if we need custom marshalling/unmarshalling functions for converting the settings keys to camelCase
+// MarshalJSON implements the json.Marshaler interface and converts the s.Settings from map[string]any in snake_case to map[string]any in camelCase
+func (s SSOSettings) MarshalJSON() ([]byte, error) {
+	type Alias SSOSettings
+	aux := &struct {
+		*Alias
+	}{
+		Alias: (*Alias)(&s),
+	}
+
+	settings := make(map[string]any)
+	for k, v := range aux.Settings {
+		settings[strcase.ToLowerCamel(k)] = v
+	}
+
+	aux.Settings = settings
+	return json.Marshal(aux)
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface and converts the settings from map[string]any camelCase to map[string]interface{} snake_case
+func (s *SSOSettings) UnmarshalJSON(data []byte) error {
+	type Alias SSOSettings
+	aux := &struct {
+		*Alias
+	}{
+		Alias: (*Alias)(s),
+	}
+
+	if err := json.Unmarshal(data, &aux); err != nil {
+		return err
+	}
+
+	settings := make(map[string]any)
+	for k, v := range aux.Settings {
+		settings[strcase.ToSnake(k)] = v
+	}
+
+	s.Settings = settings
+	return nil
+}