Jmeter - My response has multiple values of same id. I want to extract and pass these values incrementally to the next request - jmeter

My response to a save action is somewhat like this-
"diagnosisId":45686,"confidence":0.0, --other text--
"diagnosisId":45966,"confidence":0.0,--other text-- etc. Say there are 27 diagnosis Ids.
Now i want to send request for the 1st Diagnosis Id in loop till the last id (multiple records/rows to save depending upon the diagnosis Ids).
Request is something like this -
"diagnosisId":45686,"confidence":0," etc.
I have extracted the Diagnosis Id using Regular Expression extractor and matched the first value -
"diagnosisId":(.+?),
How do I pass the values incrementally now?

Given you provide "Match No:" as -1 in the Regular Expression Extractor:
You will get the following JMeter Variables as the result (viewable via Debug Sampler):
At this stage you can add ForEach Controller and configure it like:
Input variable prefix: diagnosisId
Output variable name: anything meaningful, i.e. id
That's it, you can reference each consecutive ID as ${id} in the request(s) which will be the children of the ForEach Controller:
Another example: Using Regular Expressions in JMeter

Related

How capture unique id's from different match count for every user with or with out regex

I want to capture the id's for different users.when we put the load test or run with multiple usersin jmeter
I am capturing the id's of the users. Whem i am runing the script with different users the id was generating for the users.By using regex for the first user the id was generating in 5th match count position . For the second user the id was generating in 11 th position . For third user the id was generating in 46 th position . So i am unable parameterize these values through regex. So please help me how to pass id's for the corresponding user when we run script for more than 20 users. Without passing the correct id the scripit was failing .
As per JMeter Variables documentation:
Variables are local to a thread
So theoretically 2nd JMeter thread (virtual user) should know nothing about the variables which are set for the 1st JMeter thread and vice versa.
If you're hitting an endpoint which shows IDs for all users which are in the system, they you should apply some filtering in your regular expression so it would return only one match or consider other Post-Processor, i.e.
CSS Selector Extractor for HTML
XPath Extractor and XPath2 Extractor for XHTML and HTML where CSS selectors are not sufficient/powerful enough
JSON Extractor and JSON JMESPath Extractor are for JSON
JSR223 PostProcessor if none of the above can help to extract the unique ID for the user

Can a request parameter extracted from response of previous request have different values when run multiple times - Jmeter

Scenario:
We are extracting a value from 1st request and passing it as a parameter for the 2nd request.
The 2nd request is in Loop controller and it is run multiple times, But every time the 2nd request runs , It should take different value. Is there any way to do this.
Eg: Below is the example screenshots for the same. data is the variable which is passed to the second request .When second request is hit multiple times , It should extract different values.
In the Regular Expression Extractor set "Match No" to -1 to you will extract all the matches into:
data_1=1
data_2=2
etc.
In the Loop Controller set the "Loop Count" to ${data_matchNr}. This way the controller will iterate as many times as there are matches in the Regular Expression Extractor
Instead of ${data} use ${__V(data_${__intSum(${__jm__Loop Controller__idx},1,)},)}
More information: Here’s What to Do to Combine Multiple JMeter Variables

Using JsonExtractor Value in Jmeter

I have like 3 JsonExtractors in a single thread. How do i use the value extracted from the first to the third ?
The first JsonExtractor extracts 'winSpoke' value from the response json and i am storing in as
Names of created variables: WinSpoke
The third JsonExtractor will extract 'payLevelDetails' value based on the previous WinSpoke value and i am storing in as
Names of created variables: PayLevelDetails
Json Path expressions: $.payLevels[${WinSpoke}]
However i am getting error as -
JSONPostProcessor: Error processing JSON content in Pay Level Details
JSON Extractor, message: Could not parse token starting at position
11. Expected ?, ', 0-9, *
Can someone help me in pointing where i might have gone wrong ?
Your setup should work just fine given you have ${WinSpoke} variable defined, you can double check its value using Debug Sampler and View Results Tree listener combination
Also be aware that PostProcessors are being executed upside down so make sure that the JSON Extractor which extracts your WinSpoke variable is above the one which is referencing the variable.

How can I get exatcly one row from database query for every course loop

I creating script which let me to get values from database.
Now, when I'm executing query oracle returning me too many values.
My query looks like that : select * FROM OFFERS
I'm getting:
OFFER_NR_#=101042
OFFER_NR_1=0001G000210
OFFER_NR_10=0001G000411
and many many more...
I want to take exactly one value e.g. OFFER_NR and use it in request
------- request SEARCH_OFFER ${OFFER_NR} = 101042
During next course loop I want to take another value as variable
------- request SEARCH_OFFER ${OFFER_NR} = 0001G000210
It's just like using CSV FILE CONFIGURATION, which can give me exactly each next row for every thread group iteration, but I don't know how can I do this the same using jdbc request.
1 You need to use ForEach Controller configured as follows:
Input Variable Prefix: OFFER_NR
Output Variable Name: anything meaningful, i.e. CURRENT_OFFER
Check `Add "_" before number" box
Place your 2nd request under the ForEach Contoller
Refer each subsequent OFFER_NR as ${CURRENT_OFFER} where required
See Debugging JDBC Sampler Results in JMeter guide for more detailed explanation of your and other situations

How to handle dynamically generated values during run time via Jmeter

Scenario: I am recording a script which is fetching values from CSV name and email. I have used ${email} and ${name} at the time which candidate is registering. Every time candidate register, unique instance Id is generated on the basis of which further action is performed.
Ex:
Candidate registers -> Unique Id (say 12345) -> ST : Start some test
on the website -> Some responses saved for 12345 -> FT : Finish test
on website
Need to perform the same for say 500 candidates. I am fetching unique email and name from csv.
How do i store/handle unique instance Id for each candidate dynamically and perform the entire operation?
Currently each operation is getting performed for same unique instance Id (12345) with 0% error.
Let me know if any other details needed for the same.
UPDATE from comments:
I can use say UniqueId whenever candidate registers using a RegEx Extractor or a XPath Extractor and i can pass that value in further process.
Now issue is i have to pass the stored variable in JSON.
No clue about that.
Since you've extracted UniqueId value using any extractor component it's stored in jmeter variable (pointed in the extractor's configuration) and can be referred as e.g. ${uniqueId}.
To pass into the further request you can use HTTP Request where in Post Body you can set your JSON request code with ${uniqueId} inserted in the right place.
You can use regular expression extractor in jmeter to extract required variable value and store reference it with a variable name .
Later it can be used in later requests by usin ${variablename}
In the regular expression extractor you can use perl5 regular expressions
Refer to this link for additional information:
http://www.jmeter4u.com/2013/04/chapter-6-handling-dynamic-server-values.html

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