Method Remove

router.go:324–424

Remove unregisters registered route

(method string, path string)

// Remove unregisters registered route
func (r *DefaultRouter) Remove(method string, path string) error {
	currentNode := r.tree
	if currentNode == nil || (currentNode.isLeaf && !currentNode.isHandler) {
		return errors.New("router has no routes to remove")
	}

	if path == "" {
		path = "/"
	}
	if path[0] != '/' {
		path = "/" + path
	}

	var nodeToRemove *node
	prefixLen := 0
	for {
		if currentNode.originalPath == path && currentNode.isHandler {
			nodeToRemove = currentNode
			break
		}
		if currentNode.kind == staticKind {
			prefixLen = prefixLen + len(currentNode.prefix)
		} else {
			prefixLen = len(currentNode.originalPath)
		}

		if prefixLen >= len(path) {
			break
		}

		next := path[prefixLen]
		switch next {
		case paramLabel:
			currentNode = currentNode.paramChild
		case anyLabel:
			currentNode = currentNode.anyChild
		default:
			currentNode = currentNode.findStaticChild(next)
		}

		if currentNode == nil {
			break
		}
	}

	if nodeToRemove == nil {
		return errors.New("could not find route to remove by given path")
	}

	if !nodeToRemove.isHandler {
		return errors.New("could not find route to remove by given path")
	}

	if mh := nodeToRemove.methods.find(method, false); mh == nil {
		return errors.New("could not find route to remove by given path and method")
	}
	nodeToRemove.setHandler(method, nil)