feat: routes grouping

1 files changed, 50 insertions, 0 deletions

diff --git a/group.go b/group.go
new file mode 100644
index 0000000..7cb56ad
--- /dev/null
+++ b/group.go
@@ -0,0 +1,50 @@
+package growel
+
+import (
+	"strings"
+)
+
+/* constructor  */
+
+// Engine.Group creates a Group
+// pass the Group as a parameter to the callback function
+// used to create route groups
+func (e *Engine) Group(prefix string, fn func(*Group)) {
+	g := &Group{
+		prefix: prefix,
+		engine: e,
+	}
+
+	fn(g)
+}
+
+/* Inherit Engine methods */
+
+func (g *Group) GET(path string, handler Handler) {
+	full := joinPath(g.prefix, path)
+	g.engine.GET(full, handler)
+}
+
+func (g *Group) POST(path string, handler Handler) {
+	full := joinPath(g.prefix, path)
+	g.engine.POST(full, handler)
+}
+
+func (g *Group) DELETE(path string, handler Handler) {
+	full := joinPath(g.prefix, path)
+	g.engine.DELETE(full, handler)
+}
+
+func (g *Group) PUT(path string, handler Handler) {
+	full := joinPath(g.prefix, path)
+	g.engine.PUT(full, handler)
+}
+
+/* utils */
+
+func joinPath(a, b string) string {
+	if a == "/" {
+		return a + strings.TrimPrefix(b, "/")
+	}
+	return strings.TrimSuffix(a, "/") + "/" + strings.TrimPrefix(b, "/")
+}