Method register

router.go:636–712

(methods []string, pathRaw string, group *Group, handlers ...Handler)

}

func (app *App) register(methods []string, pathRaw string, group *Group, handlers ...Handler) {
	// A regular route requires at least one ctx handler
	if len(handlers) == 0 && group == nil {
		panic(fmt.Sprintf("missing handler/middleware in route: %s\n", pathRaw))
	}
	// No nil handlers allowed
	for _, h := range handlers {
		if h == nil {
			panic(fmt.Sprintf("nil handler in route: %s\n", pathRaw))
		}
	}

	// Precompute path normalization ONCE
	if pathRaw == "" {
		pathRaw = "/"
	}
	if pathRaw[0] != '/' {
		pathRaw = "/" + pathRaw
	}
	pathPretty := pathRaw
	if !app.config.CaseSensitive {
		pathPretty = utilsstrings.ToLower(pathPretty)
	}
	if !app.config.StrictRouting && len(pathPretty) > 1 {
		pathPretty = utils.TrimRight(pathPretty, '/')
	}
	pathClean := RemoveEscapeChar(pathPretty)

	parsedRaw := parseRoute(pathRaw, app.config.RegexHandler, app.customConstraints...)
	parsedPretty := parseRoute(pathPretty, app.config.RegexHandler, app.customConstraints...)

	isMount := group != nil && group.app != app

	for _, method := range methods {
		method = utilsstrings.ToUpper(method)
		if method != methodUse && app.methodInt(method) == -1 {
			panic(fmt.Sprintf("add: invalid http method %s\n", method))
		}

		isUse := method == methodUse
		isStar := pathClean == "/*"
		isRoot := pathClean == "/"

		route := Route{
			use:           isUse,
			mount:         isMount,
			star:          isStar,
			root:          isRoot,
			caseSensitive: app.config.CaseSensitive,

			path:        pathClean,
			routeParser: parsedPretty,
			Params:      parsedRaw.params,
			group:       group,

			Path:     pathRaw,
			Method:   method,
			Handlers: handlers,