# Alternate to multiple if..else-if in Logstash .conf file
**URL:** https://discuss.elastic.co/t/alternate-to-multiple-if-else-if-in-logstash-conf-file/79835
**Category:** Logstash
**Created:** [March 24, 2017, 4:59am UTC](https://discuss.elastic.co/t/alternate-to-multiple-if-else-if-in-logstash-conf-file/79835 "2017-03-24T04:59:22Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@anisen](https://discuss.elastic.co/u/anisen)
#### Post date: [March 24, 2017, 4:59am UTC](https://discuss.elastic.co/t/alternate-to-multiple-if-else-if-in-logstash-conf-file/79835/1 "2017-03-24T04:59:22Z")
Hi,
In my log file, there is a URI field.
Now, I have added another field named 'user\_operation' with a default value and want to assign different values to this 'user\_operation' field depending on the value of the URI field.
In the log file, there are around 100 different URIs and I want to assign different user\_operation values for each of them.
Currently I am using IF..ELSE-IF..ELSE-IF..ELSE-IF... and so on
if [uri] =~ "/\_mysite/login.asmx"{
mutate {
update =\> {
"user\_operation" =\> "User Login"
}
}
}
else if [uri] =~ "/\_mysite/Pages/PlaceOrder.aspx"{
mutate {
update =\> {
"user\_operation" =\> "Place Order"
}
}
}
else if [uri] =~ "/\_mysite/LogOut.asmx"{
mutate {
update =\> {
"user\_operation" =\> "Logout"
}
}
}
.....
..... and so on.
Its working.
But, I am not sure how it will impact the performance if there are so many if..else-if conditions in the logstash conf file.
Is there any better way to do this?
Please suggest.
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [March 24, 2017, 5:59am UTC](https://discuss.elastic.co/t/alternate-to-multiple-if-else-if-in-logstash-conf-file/79835/2 "2017-03-24T05:59:46Z")
The translate filter should be helpful here.
---
### Author:  [@anisen](https://discuss.elastic.co/u/anisen)
#### Post date: [March 24, 2017, 6:29am UTC](https://discuss.elastic.co/t/alternate-to-multiple-if-else-if-in-logstash-conf-file/79835/3 "2017-03-24T06:29:15Z")
Thanks a lot. Will try it out.
---
### Author:  [@anisen](https://discuss.elastic.co/u/anisen)
#### Post date: [March 24, 2017, 11:20am UTC](https://discuss.elastic.co/t/alternate-to-multiple-if-else-if-in-logstash-conf-file/79835/4 "2017-03-24T11:20:02Z")
Tried and it served my purpose. Thanks again @magnusbaeck . This is exactly something I was looking for.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [April 21, 2017, 11:20am UTC](https://discuss.elastic.co/t/alternate-to-multiple-if-else-if-in-logstash-conf-file/79835/5 "2017-04-21T11:20:15Z")
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