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.Keys
for _, 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 - val1
param2 - 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.Keys
for _, 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 - val1
param2 - 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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