diff --git a/api/lines.go b/api/lines.go
index 3d745b7..079a79e 100644
--- a/api/lines.go
+++ b/api/lines.go
@@ -6,6 +6,7 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"sort"
 	"strings"
 	"time"
 
@@ -50,6 +51,20 @@ type PGLine struct {
 	Id         string `json:"id"`
 }
 
+type ByName []PGLine
+
+func (s ByName) Len() int {
+	return len(s)
+}
+
+func (s ByName) Less(i, j int) bool {
+	return strings.Compare(s[i].Id, s[j].Id) <= 0
+}
+
+func (s ByName) Swap(i, j int) {
+	s[i], s[j] = s[j], s[i]
+}
+
 var IDFMLines []IDFMLine
 
 func init() {
@@ -82,6 +97,18 @@ func convertLineType(old string) string {
 	}
 }
 
+func convertCode(t, code string) string {
+	if !strings.HasPrefix(code, "line:IDFM:") {
+		if len(code) != 6 || !strings.HasPrefix(code, "C") {
+			code = searchLine(t, code)
+		}
+
+		code = "line:IDFM:" + code
+	}
+
+	return code
+}
+
 func searchLine(t, code string) string {
 	for _, line := range IDFMLines {
 		if line.Fields.ShortName == code && (line.Fields.TransportMode == t || line.Fields.NetworkName == t) {
@@ -141,6 +168,8 @@ func declareLinesRoutes(router *gin.RouterGroup) {
 			}
 		}
 
+		sort.Sort(ByName(lines))
+
 		c.JSON(http.StatusOK, APIResult(c, map[string][]PGLine{
 			string(c.Param("type")): lines,
 		}))