Regular expression is fetching 9 values
Need to add all these ticked values with comma separation in next request.How can we do this in J meter
How can we pass multiple values extracted via regular expression to next request in JMeter
Can you please share some snippet of the HTML response, I'd like to help you with the answer. Also, at times, using an XPath expression in an XPath Extractor can be easier to work with.
If the reference name for is set to VALUE, then you can access each of the 9 matched values as VALUE_1, VALUE_2, ...... VALUE_9
Given you configure your Regular Expression Extractor as follows:
Reference Name: arg_name
Regular Expression: `arg_names" value="(.+?)"
Template: $1$
Match No.: -1
You will get JMeter Variables like:
arg_name_1=foo
arg_name_2=bar
arg_name_3=baz
arg_name_matchNr=3
Now you should be able to concatenate the values using the following __groovy() function:
${__groovy(def builder = new StringBuilder(); 1.upto(Integer.parseInt(vars.get("arg_name_matchNr"))) { builder.append(vars.get("arg_name_" + it)).append("\,") }; builder.toString(),)}
Demo:
More information:
vars is a shorthand to JMeterVariables class instance
Groovy For Loop Examples
Apache Groovy - Why and How You Should Use It
Related
I am getting a response in form of serialized json format for an api request as below
{"Data":"{\"orderId\":null,\"Tokens\":{\"Key\":\"abcdefgh123456\",\"Txnid\":\"test_5950\"}","success":true,"Test":"success"}
I want to extract Key value in Jmeter and I have to use into next request. Can someone help me on extracting the value?
Your JSON seems incorrect. The valid JSON should be like:
{
"Data":{
"orderId":null,
"Tokens":{
"Key":"abcdefgh123456",
"Txnid":"test_5950"
},
"success":true,
"Test":"success"
}
}
Add a JSON Extractor to the request from where you want to extract the Key value.
assign a variable name, i.e key
JSON Path Expression will be : .Data.Tokens.Key
use the extracted value as ${key} into the next request.
If your JSON really looks exactly like you posted the most suitable Post-Processor would be Regular Expression Extractor
The relevant regular expression would be something like:
"Key"?\s*:?\s*"(\w+)"
where:
``?\s*` - arbitrary number of whitespaces (just in case)
\w - matches "word" character (alphanumeric plus underscores)
+ - repetition
() - grouping
More information:
Using RegEx (Regular Expression Extractor) with JMeter
Perl 5 Regex Cheat sheet
JMeter: Regular Expressions
i'am using jmeter "Regular Expression Extractor",my response looks as below
[{"#class":"com.test.dto.BoardDTO",
"ReadOnly":false,
"author":"John",
"id":"89BC331D723F",
"isPublic":false
},
{"#class":"com.test.dto.BoardDTO",
"ReadOnly":false,
"author":"Alex",
"id":"FTH7JBDRF567",
"Public":false
}]
I need to extract all IDs of class:"com.test.dto.BoardDTO" in this case "89BC331D723F" and "FTH7JBDRF567"
Any proposition please !
You should use JSON Extractor instead of regular expression extractor
Add a JSON Extractor and fill in the fields as below
JSON path expression: $.[*][?(#.#class == "com.test.dto.BoardDTO")].id
Match Numbers: -1
This will return all IDs where #class value was com.test.dto.BoardDTO. You can validate it using View Results Tree & Debug Sampler combination.
I am using Jmeter for performance testing and stuck at following point:
I am getting a JSON response from Webapi as follows:
PersonInfoList:
Person
[0]
{
id: 1
name: Steve
}
[1]
Person
{
id: 2
name: Mark
}
I need to get the ids based on the count of this JSON array and create a comma separated string as ("Expected value" = 1,2)
I know how to read a particular element using JSON Post processor or Regex processor but am unable to loop through the array and create a string as explained so that I can use this value in my next sampler request.
Please help me out with this: I am using Jmeter 3.0 and if this could be achieved without using external third party libs that would be great. Sorry for the JSON syntax above
Actually similar functionality comes with JSON Path PostProcessor which appeared in JMeter 3.0. In order to get all the values in a single variable configure JSON Path PostProcessor as follows:
Variable Names: anything meaningful, i.e. id
JSON Path Expressions: $..id or whatever you use to extract the ids
Match Numbers: -1
Compute concatenation var (suffix _ALL): check
As a result you'll get id_ALL variable which will contain all JSON Path expression matches (comma-separated)
More "universal" answer which will be applicable for any other extractor types and in fact will allow to concatenate any arbitrary JMeter Variables is using scripting (besides if you need this "expected value and parentheses)
In order to concatenate all variables which names start with "id" into a single string add Beanshell PostProcessor somewhere after JSON Path PostProcessor and put the following code into "Script" area
StringBuilder result = new StringBuilder();
result.append("(\"Expected value\" = ");
Iterator iterator = vars.getIterator();
while (iterator.hasNext()) {
Map.Entry e = (Map.Entry) iterator.next();
if (e.getKey().matches("id_(\\d+)")) {
result.append(e.getValue());
result.append(",");
}
}
result.append(")");
vars.put("expected_value", result.toString());
Above code will store the resulting string into ${expected value} JMeter Variable. See How to Use BeanShell: JMeter's Favorite Built-in Component article for more information regarding bypassing JMeter limitations using scripting and using JMeter and Java API from Beanshell test elements.
Demo:
The response I get back from a post is just a plain text guid seen here I'd like to pull this guid and use it in a variable for my following Get statement:
post response data
And I've tried a bunch of configurations in my regular expression extractor.
But it just ends up pulling Null when what I want is that guid.
Null
I'm new to jmeter - so thank you in advance for the help.
If you need the whole response use the following Regular Expression Extractor configuration:
Reference Name: response
Regular Expression: (?s)(^.*)
Template: $1$
As per How to Extract Data From Files With JMeter guide:
() = grouping
(?s) = single line modifier
^ = line start
. = wild-card character
* = repetition
So it will return the whole response.
I am using JMeter to test a web application. The application returns JSON that looks like the following:
{"type":"8","id":"2093638401"}
{"type":"9","id":"20843301"}
{"type":"14","id":"20564501"}
I need to get a count based on type.
I have tried adding foreach controller with a regular expression extractor, but Im not sure I have done it correctly:
Apply to: Main sample only
Response field to check: Body
Reference name: match_type
Regular Expression: "type":"(\d)"
Template: $1$
Match no.: -1
Im new to JMeter so Im not sure if Im doing any of this correctly.
Thanks
If you want to operate on both type and id in single sampler, I think simple regex and ForEach controller won't be sufficient. You will have to write two regex extractor followed by while controller with BSF processor (javascript or beanshell) to extract both the values and export them to jmeter variable. Something of following type
- First Request
- Regex extractor for type
- Regex extractor for id
- BSF processor (to initialize the loopcount=0 and the total_matches of matches that you found)
- while controller (loopcount < total_matches)
- BSF processor
- export/set current_type = type_$loopcount
- export/set current_id = id_$loopcount
- increment loopcount
- USE current_type and current_id in whatever sampler you like
== Update ==
This http://goo.gl/w3u1r tutorial depicts exactly how to go about it.