Fill in request & response types

Author: liujed

handler.go

@@ -147,12 +147,12 @@ const (
 
 func (h *Handler) handleDNSRequest(
 	mode handlerMode,
-) func(*http.Request, any) (int, optionals.Optional[any], error) {
+) func(*http.Request, RequestBody) (int, optionals.Optional[ResponseBody], error) {
 	return func(
 		req *http.Request,
-		reqBody any,
-	) (httpStatus int, respBody optionals.Optional[any], err error) {
+		reqBody RequestBody,
+	) (httpStatus int, respBody optionals.Optional[ResponseBody], err error) {
 		// TODO
-		return http.StatusInternalServerError, optionals.None[any](), nil
+		return http.StatusInternalServerError, optionals.None[ResponseBody](), nil
 	}
 }

schema.go

@@ -0,0 +1,16 @@
+package caddydns01proxy
+
+// See https://github.com/libdns/acmeproxy/blob/f8e0a6620dddf349d1c9ba58b755aa7a25e5613f/provider.go#L20-L23.
+type RequestBody struct {
+	// The challenge domain at which the DNS-01 response should be written.
+	ChallengeFQDN string `json:"fqdn"`
+
+	// The value of the DNS-01 response.
+	Value string `json:"value"`
+}
+
+func (r RequestBody) IsValid() bool {
+	return r.ChallengeFQDN != "" && r.Value != ""
+}
+
+type ResponseBody = RequestBody