content/commands/function-dump.md
Return the serialized payload of loaded libraries.
You can restore the serialized payload later with the [FUNCTION RESTORE]({{< relref "/commands/function-restore" >}}) command.
For more information please refer to [Introduction to Redis Functions]({{< relref "/develop/programmability/functions-intro" >}}).
The following example shows how to dump loaded libraries using FUNCTION DUMP and then it calls [FUNCTION FLUSH]({{< relref "/commands/function-flush" >}}) deletes all the libraries.
Then, it restores the original libraries from the serialized payload with [FUNCTION RESTORE]({{< relref "/commands/function-restore" >}}).
redis> FUNCTION LOAD "#!lua name=mylib \n redis.register_function('myfunc', function(keys, args) return args[1] end)"
"mylib"
redis> FUNCTION DUMP
"\xf5\xc3@X@]\x1f#!lua name=mylib \n redis.registe\rr_function('my@\x0b\x02', @\x06`\x12\nkeys, args) 6\x03turn`\x0c\a[1] end)\x0c\x00\xba\x98\xc2\xa2\x13\x0e$\a"
redis> FUNCTION FLUSH
OK
redis> FUNCTION RESTORE "\xf5\xc3@X@]\x1f#!lua name=mylib \n redis.registe\rr_function('my@\x0b\x02', @\x06`\x12\nkeys, args) 6\x03turn`\x0c\a[1] end)\x0c\x00\xba\x98\xc2\xa2\x13\x0e$\a"
OK
redis> FUNCTION LIST
1) 1) "library_name"
2) "mylib"
3) "engine"
4) "LUA"
5) "functions"
6) 1) 1) "name"
2) "myfunc"
3) "description"
4) (nil)
5) "flags"
6) (empty array)
| Redis Software | Redis Cloud | <span style="min-width: 9em; display: table-cell">Notes</span> | |:----------------------|:-----------------|:------| | <span title="Supported">✅ Standard</span> <span title="Supported"><nobr>✅ Active-Active</nobr></span> | <span title="Supported">✅ Standard</span> <span title="Supported"><nobr>✅ Active-Active</nobr></span> | |
{{< multitabs id="function-dump-return-info" tab1="RESP2" tab2="RESP3" >}}
Bulk string reply: the serialized payload
-tab-sep-
Bulk string reply: the serialized payload
{{< /multitabs >}}