Method deleteRoute

router.go:567–610

(methods []string, matchFunc func(r *Route) bool)

}

func (app *App) deleteRoute(methods []string, matchFunc func(r *Route) bool) {
	if len(methods) == 0 {
		methods = app.config.RequestMethods
	}

	app.mutex.Lock()
	defer app.mutex.Unlock()

	removedUseRoutes := make(map[string]struct{})

	for _, method := range methods {
		// Uppercase HTTP methods
		method = utilsstrings.ToUpper(method)

		// Get unique HTTP method identifier
		m := app.methodInt(method)
		if m == -1 {
			continue // Skip invalid HTTP methods
		}

		for i := len(app.stack[m]) - 1; i >= 0; i-- { //nolint:modernize // false positive
			route := app.stack[m][i]
			if !matchFunc(route) {
				continue // Skip if route does not match
			}

			app.stack[m] = append(app.stack[m][:i], app.stack[m][i+1:]...)
			app.hasRoutesRefreshed = true

			// Decrement global handler count. In middleware routes, only decrement once
			if _, ok := removedUseRoutes[route.path]; (route.use && slices.Equal(methods, app.config.RequestMethods) && !ok) || !route.use {
				if route.use {
					removedUseRoutes[route.path] = struct{}{}
				}

				atomic.AddUint32(&app.handlersCount, ^uint32(len(route.Handlers)-1)) //nolint:gosec // G115 - handler count is always small
			}

			if method == MethodGet && !route.use && !route.mount {
				app.pruneAutoHeadRouteLocked(route.path)
			}
		}
	}
}

// pruneAutoHeadRouteLocked removes an automatically generated HEAD route so a
// later explicit registration can take its place without duplicating handler