How do I pass multiple get parameters to a url in Echo?

[lolo02afon]

In the Echo documentation on the topic of passing parameters via url, I found a very inimitable answer, which consists in the example e.GET("/users/:id", getUser) without any explanation.

From here I was asked how to pass more than one parameter (how to continue writing a static url after the parameter is also interesting, but the main thing for me is to get an answer to the first question)?

[aldas]

Just add another :xx in path when you add new route

Example:

func main() {
	e := echo.New()

	e.GET("/groups/:gid/users/:uid", func(c echo.Context) error {
		groupID := c.Param("gid") 
		userID := c.Param("uid")
		lang := c.QueryParam("lang")
		return c.String(http.StatusOK, fmt.Sprintf("group id from path: %v, user id from path: %v, lang from query: %v", groupID, userID, lang))
	})

	if err := e.Start(":8080"); err != http.ErrServerClosed {
		log.Print(fmt.Errorf("error when starting HTTP server: %w", err))
	}
}

Test with curl:

x@x:~$ curl -v http://localhost:8080/groups/1/users/999?lang=en
*   Trying 127.0.0.1:8080...
* Connected to localhost (127.0.0.1) port 8080 (#0)
> GET /groups/1/users/999?lang=en HTTP/1.1
> Host: localhost:8080
> User-Agent: curl/7.81.0
> Accept: */*
> 
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Content-Type: text/plain; charset=UTF-8
< Date: Thu, 04 Aug 2022 10:41:59 GMT
< Content-Length: 66
< 
* Connection #0 to host localhost left intact
group id from path: 1, user id from path: 999, lang from query: en

[lolo02afon]

Is it always necessary to put a slash / after the parameter?

[aldas]

Characters are considered to be part of parameter name until next / or end of the string is matched.