Skip to main content



XRANGE key start end [COUNT count]

Time complexity: O(N) with N being the number of elements being returned. If N is constant (e.g. always asking for the first 10 elements with COUNT), you can consider it O(1).

ACL categories: @read, @stream, @slow

The XRANGE command returns stream entries matching the given range of IDs. The range is specified by a minimum and maximum ID. All the entries having an ID between the two specified or exactly one of the two IDs specified (closed interval) are returned.

XRANGE allows both <start> and <end> IDs to be the same. In that case, the command only returns the specified entry.

dragonfly> xrange mystream 1687926126874-0 1687926126874-0
1) 1) "1687926126874-0"
2) 1) "k"
2) "v"

Special IDs

Sometimes, it is logical to get all the entries of a stream. It is tedious to mention the minimum and maximum IDs explicitly. To tackle this issue, XRANGE accepts two special characters to denote the minimum ID and maximum ID of a stream. These are "-" and "+" respectively. The following command returns all entries from the stream mystream.

dragonfly> XRANGE mystream - +
1) 1) "1687926126874-0"
2) 1) "k"
2) "v"
2) 1) "1687926132506-0"
2) 1) "l"
2) "x"
3) 1) "1687926136634-0"
2) 1) "n"
2) "t"
4) 1) "1687926140032-0"
2) 1) "q"
2) "r"

Incomplete IDs

It is possible to use incomplete IDs in XRANGE command. User can specify just the first part of ID, the millisecond time:

dragonfly> XRANGE mystream 1687926126874 1687926140032

In this case, XRANGE will auto-complete the start interval with -0 and end interval with -18446744073709551615, in order to return all the entries that were generated between a given millisecond and the end of the other specified millisecond. This also means that repeating the same millisecond two times, will get all the entries within such millisecond, because the sequence number range will be from zero to the maximum.

Exclusive Ranges

By default, the XRANGE command returns entries including specified IDs. If you want the behaviour to be exclusive, prefix the ID with ( character.

COUNT option

XRANGE accepts a COUNT option to limit the number of entries returned. It takes integer value.

dragonfly> XRANGE mystream - + COUNT 1
1) 1) "1687926126874-0"
2) 1) "k"
2) "v"


Array reply:

The returned entries are complete, that means that the ID and all the fields they are composed are returned. Moreover, the entries are returned with their fields and values in the exact same order as XADD added them.