76 lines
1.6 KiB
Go
76 lines
1.6 KiB
Go
// Package vpath resolves using http path and recognised versioned urls
|
|
package vpath
|
|
|
|
import (
|
|
"errors"
|
|
"net/http"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"github.com/unistack-org/micro/v3/api/resolver"
|
|
)
|
|
|
|
// NewResolver creates new vpath api resolver
|
|
func NewResolver(opts ...resolver.Option) resolver.Resolver {
|
|
return &vpathResolver{opts: resolver.NewOptions(opts...)}
|
|
}
|
|
|
|
type vpathResolver struct {
|
|
opts resolver.Options
|
|
}
|
|
|
|
var re = regexp.MustCompile("^v[0-9]+$")
|
|
|
|
// Resolve endpoint
|
|
func (r *vpathResolver) Resolve(req *http.Request, opts ...resolver.ResolveOption) (*resolver.Endpoint, error) {
|
|
if req.URL.Path == "/" {
|
|
return nil, errors.New("unknown name")
|
|
}
|
|
|
|
options := resolver.NewResolveOptions(opts...)
|
|
|
|
parts := strings.Split(req.URL.Path[1:], "/")
|
|
if len(parts) == 1 {
|
|
return &resolver.Endpoint{
|
|
Name: r.withPrefix(parts...),
|
|
Host: req.Host,
|
|
Method: req.Method,
|
|
Path: req.URL.Path,
|
|
Domain: options.Domain,
|
|
}, nil
|
|
}
|
|
|
|
// /v1/foo
|
|
if re.MatchString(parts[0]) {
|
|
return &resolver.Endpoint{
|
|
Name: r.withPrefix(parts[0:2]...),
|
|
Host: req.Host,
|
|
Method: req.Method,
|
|
Path: req.URL.Path,
|
|
Domain: options.Domain,
|
|
}, nil
|
|
}
|
|
|
|
return &resolver.Endpoint{
|
|
Name: r.withPrefix(parts[0]),
|
|
Host: req.Host,
|
|
Method: req.Method,
|
|
Path: req.URL.Path,
|
|
Domain: options.Domain,
|
|
}, nil
|
|
}
|
|
|
|
func (r *vpathResolver) String() string {
|
|
return "vpath"
|
|
}
|
|
|
|
// withPrefix transforms "foo" into "go.micro.api.foo"
|
|
func (r *vpathResolver) withPrefix(parts ...string) string {
|
|
p := r.opts.ServicePrefix
|
|
if len(p) > 0 {
|
|
parts = append([]string{p}, parts...)
|
|
}
|
|
|
|
return strings.Join(parts, ".")
|
|
}
|