feat(group): add Prefix

group.go

@@ -23,6 +23,12 @@ type Group struct {
 	noAutoRegisterRoutes bool
 }
 
+// Prefix returns the group's path prefix, including any parent group prefixes.
+// The prefix is returned as stored, without path normalization.
+func (g *Group) Prefix() string {
+	return g.prefix
+}
+
 // Use implements `Echo#Use()` for sub-routes within the Group.
 //
 // Important! Group middlewares are executed in case there was no exact route match as by default Group registers

group_test.go

@@ -15,6 +15,19 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+func TestGroup_Prefix(t *testing.T) {
+	e := New()
+	parent := e.Group("/v1")
+	child := parent.Group("/users")
+
+	assert.Equal(t, "/v1", parent.Prefix())
+	assert.Equal(t, "/v1/users", child.Prefix())
+	assert.Equal(t, "", e.Group("").Prefix())
+	assert.Equal(t, "/v1", parent.Group("").Prefix())
+	assert.Equal(t, "/v1users", parent.Group("users").Prefix())
+	assert.Equal(t, "/v1/", parent.Group("/").Prefix())
+}
+
 func TestGroup_withoutRouteWillExecuteMiddleware(t *testing.T) {
 	e := New()