How Should My Server Handle Empty Query Parameters?

I'm working on a backend using the Golang Gin web framework and I've encountered a question about query parameters. For instance, I have a URL like `/test?q=`. Should the server ignore the `q` parameter completely, or treat it as an empty string?

Here's a snippet of my backend code:

```go
package main

import (
"github.com/gin-gonic/gin"
"log"
"net/http"
)

func apiRouteHandler(c *gin.Context) {
var order = c.DefaultQuery("order", "asc") // assigns default if empty
var orderBy = c.DefaultQuery("orderBy", "id") // same here
work(order, orderBy) // business logic...
c.JSON(http.StatusOK, gin.H{"success": true}) // respond
}

func work(order string, orderBy string) {
if order == "" || orderBy == "" {
log.Println("order or order_by is empty") // oops
return
}
// do something...
}

func main() {
var g = gin.Default()
g.GET("/test", apiRouteHandler)
g.Run(":8080")
}
```

When I hit the endpoint with `/test`, both `order` and `orderBy` get assigned default values. However, if I request `/test?order=&orderBy=`, these variables are assigned empty strings, throwing an error in my log. Similarly, requesting `/something?order=&orderBy=` results in a 400 error on the server. Should I modify the server to ignore empty query parameters completely, or is it better not to send them at all?

Thanks for your insights!