ea7797e10a
Use [net.SplitHostPort](https://godoc.org/net#SplitHostPort) instead of strings.Split. This is the more correct way to split the host and port as well as working with IPv6.
57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
// URLs provide a [uniform way to locate resources](http://adam.heroku.com/past/2010/3/30/urls_are_the_uniform_way_to_locate_resources/).
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// Here's how to parse URLs in Go.
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package main
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import "fmt"
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import "net"
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import "net/url"
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func main() {
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// We'll parse this example URL, which includes a
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// scheme, authentication info, host, port, path,
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// query params, and query fragment.
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s := "postgres://user:pass@host.com:5432/path?k=v#f"
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// Parse the URL and ensure there are no errors.
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u, err := url.Parse(s)
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if err != nil {
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panic(err)
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}
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// Accessing the scheme is straightforward.
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fmt.Println(u.Scheme)
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// `User` contains all authentication info; call
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// `Username` and `Password` on this for individual
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// values.
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fmt.Println(u.User)
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fmt.Println(u.User.Username())
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p, _ := u.User.Password()
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fmt.Println(p)
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// The `Host` contains both the hostname and the port,
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// if present. `Split` the `Host` manually to extract
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// the port.
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fmt.Println(u.Host)
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host, port, _ := net.SplitHostPort(u.Host)
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fmt.Println(host)
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fmt.Println(port)
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// Here we extract the `path` and the fragment after
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// the `#`.
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fmt.Println(u.Path)
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fmt.Println(u.Fragment)
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// To get query params in a string of `k=v` format,
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// use `RawQuery`. You can also parse query params
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// into a map. The parsed query param maps are from
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// strings to slices of strings, so index into `[0]`
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// if you only want the first value.
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fmt.Println(u.RawQuery)
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m, _ := url.ParseQuery(u.RawQuery)
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fmt.Println(m)
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fmt.Println(m["k"][0])
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}
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