HttpMiddlewares

1. Middlewares

Middlewares are used to perform operations before the handler function is executed. These are functions that accept http.Handler and return http.Handler. Below is an example of how to define a middleware:

main.go

middleware := func (next http.Handler) http.Handler {
    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        // do something before the handler function
        next.ServeHTTP(w, r)
    })
}

handler := func (w http.ResponseWriter, r *http.Request) {
    // handle http request
}

Then you can use the middleware in the http route:

main.go

router := api.Http().HttpRouter().PluginRouter()
router.Get("/welcome", handler, middleware).Name("welcome")

2. Built-in Middlewares

There are some built-in middlewares that you can use:

Middleware	Description
AdminAuth	This middleware ensures that only authenticated admins can access the route.
CacheResponse	This middleware caches the response throughout the duration of the application runtime.
PendingPurchase	This middleware redirects the user to the pending order payment page, if any.

For example, to use the AdminAuth middleware:

adminAuthMw := api.Http().Middlewares().AdminAuth()
router.Get("/welcome", handler, adminAuthMw).Name("welcome")