使用Go（golang）如何解析/ id / 123格式的URL而不是？foo = bar

Question

I'm trying to parse an URL like:

http://example.com/id/123

I've read through the net/url docs but it seems like it only parses strings like

http://example.com/blah?id=123

How can I parse the ID so I end up with the value of the id in the first example? Thanks.

I should have been more precise,

This is not one of my own routes but a http string returned from an openid request

Answer 1

In your example /id/123 is a path and you can get the "123" part by using Base from the path module.

package main

import (
    "fmt"
    "path"
)

func main() {
    fmt.Println(path.Base("/id/123"))
}

For easy reference, here's the docs on the path module. http://golang.org/pkg/path/#example_Base