micro/network/resolver/http/http.go
2019-06-24 15:21:24 +01:00

60 lines
1.0 KiB
Go

// Package http resolves ids to network addresses using a http request
package http
import (
"encoding/json"
"io/ioutil"
"net/http"
"net/url"
"github.com/micro/go-micro/network/resolver"
)
type Resolver struct {
// If not set, defaults to http
Proto string
// Path sets the path to lookup. Defaults to /network
Path string
}
// Resolve assumes ID is a domain which can be converted to a http://id/network request
func (r *Resolver) Resolve(id string) ([]*resolver.Record, error) {
proto := "http"
path := "/network"
if len(r.Proto) > 0 {
proto = r.Proto
}
if len(r.Path) > 0 {
path = r.Path
}
uri := &url.URL{
Scheme: proto,
Path: path,
Host: id,
}
rsp, err := http.Get(uri.String())
if err != nil {
return nil, err
}
defer rsp.Body.Close()
b, err := ioutil.ReadAll(rsp.Body)
if err != nil {
return nil, err
}
// encoding format is assumed to be json
var records []*resolver.Record
if err := json.Unmarshal(b, &records); err != nil {
return nil, err
}
return records, nil
}