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Diffstat (limited to 'iredis/data/commands/xlen.md')
| -rw-r--r-- | iredis/data/commands/xlen.md | 21 |
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diff --git a/iredis/data/commands/xlen.md b/iredis/data/commands/xlen.md new file mode 100644 index 0000000..5506449 --- /dev/null +++ b/iredis/data/commands/xlen.md @@ -0,0 +1,21 @@ +Returns the number of entries inside a stream. If the specified key does not +exist the command returns zero, as if the stream was empty. However note that +unlike other Redis types, zero-length streams are possible, so you should call +`TYPE` or `EXISTS` in order to check if a key exists or not. + +Streams are not auto-deleted once they have no entries inside (for instance +after an `XDEL` call), because the stream may have consumer groups associated +with it. + +@return + +@integer-reply: the number of entries of the stream at `key`. + +@examples + +```cli +XADD mystream * item 1 +XADD mystream * item 2 +XADD mystream * item 3 +XLEN mystream +``` |