json data and preprocessiong regex for text substituion in Discorvery rule

[Nel23FX]

hello,

using Zabbix 4.4

I have a discovery rule

discovery[{#SNMPVALUE},IF-MIB::ifDescr]

for a device that retrieve json structured data like

[{"{#SNMPINDEX}":"1","{#SNMPVALUE}":"eth_base"},{"{ #SNMPINDEX}":"2","{#SNMPVALUE}":"eth0"}}]

I wan't to substitute "eth_base" with "interface toto" and "eth0" with "interface titi"

How can I do it with regexp preprocessing rule ?

[Andycole]

Information may be a plain number, a string, some text, JSON arrays, or even SQL queries. ... So, data preprocessing is used not only in machine learning, but for ... a regular expression to extract the word 'error', then replace it with '0', ... to JSON and then put your CSV yo use in a low-level discovery rule.

[Nel23FX]

I don't understand what you are talking about.

I have made it with a javascript preprocessing rule.

But I thought I could do it whit regexp.


In fact I'm talking about a SNMP discovery in a template rule in order to create item prototype.

In the discovery rule of the template the SNMP OID is :

discovery[{#SNMPVALUE},IF-MIB::ifDescr]

and it generate a json structured string : [{"{#SNMPINDEX}":"1","{#SNMPVALUE}":"eth_base"}, {"{ #SNMPINDEX}":"2","{#SNMPVALUE}":"eth0"}}] for my switch

I want to substitue "eth_base" to WAN1 for example. So when Item prototype generate Item they will be named as WAN1 instead of eth_base by using the preprocessed {#SNMPVALUE} value.

Does regexp preprocessing works fine to do it? and what to write ? ^*eth_base$ output: "WAN1" ? Javascript rules but I want to use regexp