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api_notification.go
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api_notification.go
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// Copyright 2018 The Nakama Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package server
import (
"bytes"
"context"
"encoding/base64"
"encoding/gob"
"github.com/golang/protobuf/ptypes/empty"
"github.com/heroiclabs/nakama/api"
"github.com/satori/go.uuid"
"go.uber.org/zap"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
func (s *ApiServer) ListNotifications(ctx context.Context, in *api.ListNotificationsRequest) (*api.NotificationList, error) {
limit := 1
if in.GetLimit() != nil {
if in.GetLimit().Value < 1 || in.GetLimit().Value > 100 {
return nil, status.Error(codes.InvalidArgument, "Invalid limit - limit must be between 1 and 100.")
}
limit = int(in.GetLimit().Value)
}
cursor := in.GetCacheableCursor()
var nc *notificationCacheableCursor = nil
if cursor != "" {
nc = ¬ificationCacheableCursor{}
if cb, err := base64.RawURLEncoding.DecodeString(cursor); err != nil {
s.logger.Warn("Could not base64 decode notification cursor.", zap.String("cursor", cursor))
return nil, status.Error(codes.InvalidArgument, "Malformed cursor was used.")
} else {
if err := gob.NewDecoder(bytes.NewReader(cb)).Decode(nc); err != nil {
s.logger.Warn("Could not decode notification cursor.", zap.String("cursor", cursor))
return nil, status.Error(codes.InvalidArgument, "Malformed cursor was used.")
}
}
}
userID := ctx.Value(ctxUserIDKey{}).(uuid.UUID)
notificationList, err := NotificationList(s.logger, s.db, userID, limit, cursor, nc)
if err != nil {
return nil, status.Error(codes.Internal, "Error retrieving notifications.")
}
return notificationList, nil
}
func (s *ApiServer) DeleteNotifications(ctx context.Context, in *api.DeleteNotificationsRequest) (*empty.Empty, error) {
if len(in.GetIds()) == 0 {
return &empty.Empty{}, nil
}
userID := ctx.Value(ctxUserIDKey{}).(uuid.UUID)
if err := NotificationDelete(s.logger, s.db, userID, in.GetIds()); err != nil {
return nil, status.Error(codes.Internal, "Error while deleting notifications.")
}
return &empty.Empty{}, nil
}