How to handle special charectors in jmeter - jmeter

In my application one of server value have spacial charector like [[.
Could you please some one let me know how to handle in regular exp
My correlation value is :
"rpc\" : [[\"(.*?)\"

Use \ before for all specal caharecters
Ex like below
"rpc\" : [[\"(.*?)\"

Your server response seems to be JSON therefore it's not best idea to use Regular Expression Extractor for correlation.
Since JMeter 3.0 you have JSON Extractor which allows fetching data from JSON responses using JSONPath query language, in your case it would be something like $..rpc or $..rpc[0]

Related

unable to capture dynamic value from the response in jmeter

unable to capture guid from the below respose using regular expression
{"failure":[],"success":{"NativeMobile.CheckoutItem":["46724846133980208"]}}
using below regular expression, tried with different options
NativeMobile.CheckoutItem":["(.*?)"]
Please help to get the guid from above response
The response seems to be JSON
JSON is not a regular language
I think it would be much easier to use JSON Extractor instead, the relevant JsonPath query would be something like:
success.['NativeMobile.CheckoutItem'][0]
More information: How to Use the JSON Extractor For Testing

how to use regular expression in websocket text frame filter in jmeter

i have a response
{"server":{"event":"broadcast","broadcastaction":"events","events":[{"cash":0.0,"id":"3","action":"card","cad":"35","score":"3","cadcount":"1"},{"cash":0.0,"id":"0","action":"close","cad":"-1","score":"0","cadcount":"1"},{"cash":0.0,"id":"3","action":"card","cad":"20","score":"13","cadcount":"2"},{"cash":0.0,"id":"0","action":"close","cad":"-1","score":"-5","cadcount":"2"},{"cash":0.0,"id":"0","action":"cad1oen","cad":"48","score":"-5","cadcount":"1"},{"cash":0.0,"id":"0","action":"play","value":"read"}]}}.Here id value changes from 0 to 5
I used {"cash":0.0,"id":("0"|"${id}"),"action":"play" in websocket text frame filter to capture above mentioned reponse.But i got an error "java.util.regex.PatternSyntaxException: Illegal repetition".How to solve this issue?
It's easy.
You can use the below regex expression to extract the data you need
{"cash":(.+?),"id":"(.+?)","action":"(.+?)","cad":"(.+?)","score":"(.+?)","cadcount":"(.+?)"}
Configure Regular Expression Extractor as follows
This regex will extract the information as follows:
extractedData_g1 = cash
extractedData_g2 = id
extractedData_g3 = action
extractedData_g4 = cad
extractedData_g5 = score
extractedData_g6 = cadcount
I used https://regexr.com/ to generate this expression and you can refer the below screenshot
You're receiving JSON therefore it makes more sense to consider using JSON Extractor which allows executing Json Path queries to get "interesting" data from JSON responses.
In particular your case the relevant Json Path query would be something like:
$.server.events[?(#.cash == 0.0 && #.action=='play')].id
Demo:
More information: JMeter's JSON Path Extractor Plugin - Advanced Usage Scenarios

How to extract QueryString value using NiFi processor/language expression?

I am wondering how to extract a querystring value from incoming url using NiFi.
Initially, I started by implementing UpdateAttribute:
For example, I would like from the incoming url http://smth.net/hello?val=23
to have value of 23 extracted.
Further, I expect that I can use that extracted value by referencing it in following way:
(InvokeHttp processor) http://some.net/getValues?id=${q}
Any hints appreciated!
Edited question:
The flowfile inspect after extracting query string looks like:
you could use UpdateAttribute with replaceAll (regular expression):
${url:replaceAll('.*[\\?\\&]val=([^&]*).*','$1')}
maybe regexp could be optimized...
Actually, the easiest possible way to retrieve a query string value is by using NiFi's expression like: ${http.query.param.[keyNameOfQueryString]}.. So, if the request URL is 127.0.0.1/hello?val=23 then the NiFi expression would be ${http.query.param.val}
Other way to do is using regex, as daggett suggested, but in my case I had to do the following:
${http.query.string:replaceAll('val=(\d+).*', '$1')}
Note http.query.string in place of url.

Want to Extract value from DWR call in Jmeter

How Can i extract value from DWR call using RegEx in jmeter.
In My Script Request Body is something like :
POST data:
`callCount=1`
`page=/abc/xyz.action`
`httpSessionId=`
`scriptSessionId=87F34A5261EFBF481F6D421920EF99F9406`
`c0-scriptName=DWRPostHelper`
`c0-methodName=savePostAsDraft`
`c0-id=0`
`c0-param0=string:447`
`c0-param1=number:933`
`c0-param2=number:0`
`c0-param3=string:Post%20Jmeter`
`c0-param4=string:`
`c0-param5=string:1`
`c0-param6=number:1427199824585`
`batchId=4`
And Response data is as below :
`//#DWR-INSERT`
`//#DWR-REPLY`
`dwr.engine._remoteHandleCallback('4','0',["447","Auto-saved at 17:55"]);`
Need to Extract value 447 from above Response.
is it Possible Using RegEx ? or is there any other way to do the same?
'dwr\.engine\._remoteHandleCallback\('[0-9]','[0-9]',\["([0-9]+)",
This should do it, written from memory, you may need to tweak the syntax a bit. Use $1$ for the template.
Try the following:
dwr\.engine\._remoteHandleCallback\('4','0',\["(.+?)"
Make sure that you set $1$ as "Template"
You can test your regular expressions using View Results Tree listener as follows:
See How to debug your Apache JMeter script guide for more details on how to get to the bottom of failure or unexpected behavior while developing a JMeter Test

Regular expression in Jmeter for a json reponse

How do i write the regular expression for the json response.
My json response is "publisher":"/api/web/publishers/194".
From this response i want to get only the numeric value i.e 194. Some one pls help in getting it?
If "194" is the only integer in your response than your regex can be limited to just '(\d+)`
If you response contains more digits, you'll need to be more specific, like
"publisher":"/api/web/publishers/(\d+)"
So something like:
Reference Name: publisher
Regular Expression: "publisher":"/api/web/publishers/(\d+)"
Template: $1$
Will extract "194" and store it in "publisher" JMeter Variable. You'll be able to refer to it as ${publisher} later in Thread Group.
Going forward if you'll need to extract something from more complex JSON structures I'd recommend consider using JSON Path Extractor available via JMeter Plugins - the extractor lives in "Extras with Libs Set" package.
See Using the XPath Extractor in JMeter guide (scroll down to "Parsing JSON") for more information and XPath to JSON mapping.

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