英文:
go chi treating sub route path as URL param
问题
我正在创建一个基础路由器，并添加一些中间件和健康检查路由，如下所示：
baseRouter := chi.NewRouter()baseRouter.Use(middleware.Logger)baseRouter.Use(core.CorsHandler)baseRouter.Get("/", func(w http.ResponseWriter, r *http.Request) {w.Header().Set("Context-Type", "text/plain")w.Write([]byte("Up and Running!!"))})
然后我将我的子路由挂载到基础路由器上，如下所示：
baseRouter.Route("/{param1}/{param2}/dummy/new", func(r chi.Router) {productHandler.MountRoutes(r)})
以下是我的productHandler.MountRoutes函数：
func (h Handler) MountRoutes(r chi.Router) {r.MethodFunc(http.MethodGet, "/product/report/{report_id}", h.ExportStatus)r.MethodFunc(http.MethodPost, "/product/report", h.ExportProducts)r.MethodFunc(http.MethodPost, "/product", h.GetProducts)}
但是在GetProducts处理函数中，当我从请求上下文中获取所有的URL参数时，URL参数*被映射到了路径product，而不是URL参数。以下是GetProducts处理函数的代码片段：
ctx := context.WithValue(r.Context(), "var1", 0)routeCtx := chi.RouteContext(ctx)urlKeys := routeCtx.URLParams.Keysfor _, param := range urlKeys {parsedParam := chi.URLParam(r, param)fmt.Printf("%s - %s\n", param, parsedParam)}
当调用路由/val1/val2/dummy/new/product时，上述循环的输出结果如下：
param1 - val1param2 - val2* - product
我无法理解为什么*被映射到了product，尽管它是一个子路由而不是URL参数。我找不到相关问题的参考资料。
英文:
i am creating a base router and adding few middlewares and health check route as below
baseRouter := chi.NewRouter()baseRouter.Use(middleware.Logger)baseRouter.Use(core.CorsHandler)baseRouter.Get("/", func(w http.ResponseWriter, r *http.Request) {w.Header().Set("Context-Type", "text/plain")w.Write([]byte("Up and Running!!"))})
then i am mounting my sub-routes on the base router as
baseRouter.Route("/{param1}/{param2}/dummy/new", func(r chi.Router) {productHandler.MountRoutes(r)})
and below is my productHandler.MountRoutes function
func (h Handler) MountRoutes(r chi.Router) {r.MethodFunc(http.MethodGet, "/product/report/{report_id}", h.ExportStatus)r.MethodFunc(http.MethodPost, "/product/report", h.ExportProducts)r.MethodFunc(http.MethodPost, "/product", h.GetProducts)}
but in the GetProducts handler function, when i fetch all the url parameters from the request context, the url param * is getting mapped to the path product which is not a URL param. Below is the code snippet of the GetProducts handler
ctx := context.WithValue(r.Context(), "var1", 0)routeCtx := chi.RouteContext(ctx)urlKeys := routeCtx.URLParams.Keysfor _, param := range urlKeys {parsedParam := chi.URLParam(r, param)fmt.Printf("%s - %s\n", param, parsedParam)}
the output from the above for loop when calling the url with route /val1/val2/dummy/new/product is
param1 - val1param2 - val2* - product
couldn't get why the * is getting mapped to the product eventhough its a sub-route and not a URL param. Couldn't find any reference on related issue.
答案1
得分: 1
这里的问题似乎是我使用的软件包版本的问题，我使用的是github.com/go-chi/chi v4.1.2与go1.17一起使用时出现了这个问题。将其迁移到github.com/go-chi/chi/v5 v5.0.0解决了这个问题。
英文:
The issue here seems to be the version of the package i was using, i was using github.com/go-chi/chi v4.1.2 with go1.17 where i was getting this issue. Migrating to github.com/go-chi/chi/v5 v5.0.0 solved the issue.
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