service backend

api/pkg/db/repository/index/index.go

@@ -0,0 +1,21 @@
+package repository
+
+type Sort int8
+
+const (
+	Asc  Sort = 1
+	Desc Sort = -1
+)
+
+type Key struct {
+	Field string
+	Sort  Sort      // 1 or -1. 0 means “use Type”.
+	Type  IndexType // optional: "text", "2dsphere", ...
+}
+
+type Definition struct {
+	Keys   []Key  // mandatory, at least one element
+	Unique bool   // unique constraint?
+	TTL    *int32 // seconds; nil means “no TTL”
+	Name   string // optional explicit name
+}