ifthen

config.go

@@ -28,6 +28,12 @@ type (
 		To        string
 		Redir     bool
 		BasicAuth string `yaml:"basicAuth"`
+		If        []IfThen
+	}
+
+	IfThen struct {
+		Headers map[string]string
+		Then    Endpoint
 	}
 )
 

main.go

@@ -160,7 +160,23 @@ func (c *Config) endpoint(r *http.Request) Endpoint {
 	if !ok {
 		return Endpoint{}
 	}
-	return m[key]
+
+	endpoint, ok := m[key]
+	if !ok {
+		return Endpoint{}
+	}
+
+	for _, iffer := range endpoint.If {
+		matches := true
+		for k, v := range iffer.Headers {
+			matches = matches && r.Header.Get(k) == v
+		}
+		if matches {
+			return iffer.Then
+		}
+	}
+
+	return endpoint
 }
 
 type redirPurge struct {