feat: initial release

internal/types/web.go

@@ -0,0 +1,76 @@
+package types
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+type Path string
+
+func (p Path) String() string {
+	return string(p)
+}
+
+const (
+	PathMasterJoin      Path = "/master/join"
+	PathMasterLeave     Path = "/master/leave"
+	PathMasterKeepalive Path = "/master/keepalive"
+
+	PathNodeHealthcheck Path = "/node/healthcheck"
+	PathNodeJoin        Path = "/node/join"
+	PathNodeLeave       Path = "/node/leave"
+
+	PathDnsCallback Path = "/dns/callback"
+
+	PathHostCallback Path = "/host/callback"
+	PathHostDns      Path = "/host/dns"
+	PathHostNs       Path = "/host/ns"
+)
+
+type Response[T any] struct {
+	Ok   bool   `json:"ok"`
+	Data T      `json:"data,omitempty"`
+	Err  string `json:"err,omitempty"`
+}
+
+type Route interface {
+	Path() string
+	Handle([]byte) (any, error)
+}
+
+type endpoint struct {
+	path    string
+	handler func([]byte) (any, error)
+}
+
+func (e endpoint) Path() string { return e.path }
+
+func (e endpoint) Handle(v []byte) (any, error) { return e.handler(v) }
+
+func PostEndpoint[T any, V any](path Path, handler func(T) (V, error)) Route {
+	return endpoint{
+		path: "POST " + path.String(),
+		handler: func(a []byte) (any, error) {
+			var r T
+			if err := json.Unmarshal(a, &r); err != nil {
+				return nil, fmt.Errorf("unable to unmarshal json: %w", err)
+			}
+			return handler(r)
+		},
+	}
+}
+
+func GetEndpoint[T any](path Path, handler func() (T, error)) Route {
+	return endpoint{
+		path: "GET " + path.String(),
+		handler: func(a []byte) (any, error) {
+			return handler()
+		},
+	}
+}
+
+type Registrator interface {
+	Register(endpoint Route)
+	RegisterRaw(method string, pattern string, handler func(http.ResponseWriter, *http.Request))
+}