message RpbPutReq {
    required bytes bucket = 1;
    optional bytes key = 2;
    optional bytes vclock = 3;
    required RpbContent content = 4;
    optional uint32 w = 5;
    optional uint32 dw = 6;
    optional bool return_body = 7;
    optional uint32 pw = 8;
    optional bool if_not_modified = 9;
    optional bool if_none_match = 10;
    optional bool return_head = 11;
}
message RpbPutResp {
    repeated RpbContent contents = 1;
    optional bytes vclock = 2;        // the opaque vector clock for the object
    optional bytes key = 3;           // the key generated, if any
}
message RpbDelReq {
    required bytes bucket = 1;
    required bytes key = 2;
    optional uint32 rw = 3;
    optional bytes vclock = 4;
    optional uint32 r = 5;
    optional uint32 w = 6;
    optional uint32 pr = 7;
    optional uint32 pw = 8;
    optional uint32 dw = 9;
}
message RpbGetReq {
    required bytes bucket = 1;
    required bytes key = 2;
    optional uint32 r = 3;
    optional uint32 pr = 4;
    optional bool basic_quorum = 5;
    optional bool notfound_ok = 6;
    optional bytes if_modified = 7;
    optional bool head = 8;
    optional bool deletedvclock = 9;
}
message RpbGetResp {
    repeated RpbContent content = 1;
    optional bytes vclock = 2;
    optional bool unchanged = 3;
}
message RpbContent {
    required bytes value = 1;
    optional bytes content_type = 2;     // the media type/format
    optional bytes charset = 3;
    optional bytes content_encoding = 4;
    optional bytes vtag = 5;
    repeated RpbLink links = 6;          // links to other resources
    optional uint32 last_mod = 7;
    optional uint32 last_mod_usecs = 8;
    repeated RpbPair usermeta = 9;       // user metadata stored with the object
    repeated RpbPair indexes = 10;
    optional bool deleted = 11;
}
message RpbPair {
    required bytes key = 1;
    optional bytes value = 2;
}
message RpbLink {
    optional bytes bucket = 1;
    optional bytes key = 2;
    optional bytes tag = 3;
}
message RpbErrorResp {
    required bytes errmsg = 1;
    required uint32 errcode = 2;
}
message RpbListKeysReq {
    required bytes bucket = 1;
}
message RpbListKeysResp {
    repeated bytes keys = 1;
    optional bool done = 2;
}