feat: local cache

pkg/rpccache/group.go

@@ -0,0 +1,28 @@
+package rpccache
+
+import (
+	"context"
+	"github.com/openimsdk/open-im-server/v3/pkg/common/cachekey"
+	"github.com/openimsdk/open-im-server/v3/pkg/common/config"
+	"github.com/openimsdk/open-im-server/v3/pkg/common/localcache"
+	"github.com/openimsdk/open-im-server/v3/pkg/rpcclient"
+	"github.com/redis/go-redis/v9"
+)
+
+func NewGroupLocalCache(client rpcclient.GroupRpcClient, cli redis.UniversalClient) *GroupLocalCache {
+	return &GroupLocalCache{
+		local:  localcache.New[any](localcache.WithRedisDeleteSubscribe(config.Config.LocalCache.Group.Topic, cli)),
+		client: client,
+	}
+}
+
+type GroupLocalCache struct {
+	local  localcache.Cache[any]
+	client rpcclient.GroupRpcClient
+}
+
+func (g *GroupLocalCache) GetGroupMemberIDs(ctx context.Context, groupID string) ([]string, error) {
+	return localcache.AnyValue[[]string](g.local.Get(ctx, cachekey.GetGroupMemberIDsKey(groupID), func(ctx context.Context) (any, error) {
+		return g.client.GetGroupMemberIDs(ctx, groupID)
+	}))
+}