first draft to to get tenant history

cmd/metal-api/internal/service/tenant-service.go

@@ -8,6 +8,7 @@ import (
 	v1 "github.com/metal-stack/masterdata-api/api/rest/v1"
 	mdmv1 "github.com/metal-stack/masterdata-api/api/v1"
 	mdm "github.com/metal-stack/masterdata-api/pkg/client"
+	internalV1 "github.com/metal-stack/metal-api/cmd/metal-api/internal/service/v1"
 	"go.uber.org/zap"
 	"google.golang.org/protobuf/types/known/wrapperspb"
 
@@ -72,6 +73,17 @@ func (r *tenantResource) webService() *restful.WebService {
 		Returns(http.StatusOK, "OK", []v1.TenantResponse{}).
 		DefaultReturns("Error", httperrors.HTTPErrorResponse{}))
 
+	ws.Route(ws.POST("/{id}/history").
+		To(viewer(r.getTenantHistory)).
+		Operation("getTenantHistory").
+		Doc("get tenant with this id at the given timestamp").
+		Param(ws.PathParameter("id", "identifier of the tenant").DataType("string")).
+		Metadata(restfulspec.KeyOpenAPITags, tags).
+		Reads(internalV1.TenantGetHistoryRequest{}).
+		Writes(v1.TenantResponse{}).
+		Returns(http.StatusOK, "OK", v1.TenantResponse{}).
+		DefaultReturns("Error", httperrors.HTTPErrorResponse{}))
+
 	ws.Route(ws.DELETE("/{id}").
 		To(admin(r.deleteTenant)).
 		Operation("deleteTenant").
@@ -186,6 +198,26 @@ func (r *tenantResource) createTenant(request *restful.Request, response *restfu
 	r.send(request, response, http.StatusCreated, pcres)
 }
 
+func (r *tenantResource) getTenantHistory(request *restful.Request, response *restful.Response) {
+	id := request.PathParameter("id")
+
+	var tghr internalV1.TenantGetHistoryRequest
+	err := request.ReadEntity(&tghr)
+	if err != nil {
+		r.sendError(request, response, httperrors.BadRequest(err))
+		return
+	}
+
+	thres, err := r.mdc.Tenant().GetHistory(request.Request.Context(), &mdmv1.TenantGetHistoryRequest{Id: id, At: tghr.At})
+	if err != nil {
+		r.sendError(request, response, defaultError(err))
+		return
+	}
+	v1t := mapper.ToV1Tenant(thres.Tenant)
+
+	r.send(request, response, http.StatusOK, &v1t)
+}
+
 func (r *tenantResource) deleteTenant(request *restful.Request, response *restful.Response) {
 	id := request.PathParameter("id")
 

cmd/metal-api/internal/service/v1/tenant.go

@@ -0,0 +1,9 @@
+package v1
+
+import "google.golang.org/protobuf/types/known/timestamppb"
+
+type (
+	TenantGetHistoryRequest struct {
+		At *timestamppb.Timestamp
+	}
+)