{
"Profiles": [{
"name": "Anil",
"Country": "INDIA"
}, {
"name": "Sunil",
"Country": "EURO"
}
]
}
Using JSon Extractor, I am able to extract country (INDIA Or EURO) with JSonPathExpression: $..Country.
How can I extract only first 3 characters of country(i.e IND or EUR) ?
You can do it in 2 steps:
For example if you want to get the Country for Anil you can do this as:
$.Profiles.[?(#.name == 'Anil')].Country
full JSON Extractor just in case:
Next you can extract first 3 letters using Regular Expression Extractor like:
textual representation of the regular expression:
(^.{0,3})
Related
I have a JSON response below:
"books": [
{
"name" : "test1",
"id" : "T01"
},
{
"name" : "test2",
"id" : "T02"
},
{
"name" : "test3",
"id" : "T03"
},
]
I am extracting all respective ids and sending it as a body to another request.
Other request takes it as an array of strings but when I am extracting it, it is showing as integers:
Currently it shows: ids_ALL = [T01, T02, T03]
and I have to pass it like: ids_ALL = ["T01", "T02", "T03"]
Note: I am suffixing _ALL to get all ids.
Since it is not passing the array as string, I am getting an error.
Is there away to extract it and put it in array of strings or way to use post-processer and then convert the array and send to other request.
This one-liner will extract all the IDs and generate the JSON Array you're looking for:
vars.put('payload', (new groovy.json.JsonBuilder(new groovy.json.JsonSlurper().parse(prev.getResponseData()).books.id.collect()).toPrettyString()))
no other extractors are needed, you can refer the generated array as ${payload} later on where required
In Taurus it can be put into the JSR223 Block
More information:
Apache Groovy - Parsing and producing JSON
Apache Groovy - Why and How You Should Use It
You can use JSON Extractor or JSON JMESPath Extractor to extract all the ids from the response.
Place a JSR223 Post processor just below the JSON Path Extractor to create a list of Strings (ids)
def idCount=vars.get("booksIds_matchNr").toInteger()
def lstIds=[]
for(i in 1..idCount){
String currentId=vars.get("booksIds_" + i)
lstIds.add("\""+ currentId + "\"" )
//lstIds.add("${currentId}" )
}
vars.putObject("lstIds",lstIds)
You can access the list with vars.getObject("lstIds")
List of strings could be seen in the view result tree.
Another quick solution
Add a JSR223 Post Processor below the JSON Extractor to create strings with the available values.
String booksIds_ALL=vars.get("booksIds_ALL")
def lstIds = "\"" + booksIds_ALL.replace(",", "\",\"") + "\""
vars.putObject("lstIds",lstIds)
I have a dynamic value in response but it keep on changing the position. How can i capture it.
ex:1st iteration value is 2nd position
2nd iteration value is 4th position
3rd iteration value is 1st position...like that
Can you some one please guide me how to capture this value using Regular Expression Extractor or any other Extractor.
Perhaps Regular Expression Extractor is not the best choice, especially when it comes to HTML response type so make sure to use the suitable Post-Processor, i.e.
HTML - CSS Selector Extractor
XML - XPath Extractor
JSON - JSON Extractor
Anything else: Boundary Extractor might be easier to use than the Regular Expression Extractor
Going forward include (at least partial) response in your question and indicate which value you want to extract so we could come up with the most efficient approach.
As of JMeter 3.0, it’s far easier to extract data from JSON responses using the JSON variable extractor. JSON is an extremely simple data format which has taken over XML a few years ago.
An increasing number of REST APIs and servers, are using JSON as their primary data exchange format. Here, we will use JMeter to parse the JSON response.
Suppose we have a JSON response as follows:
{
"store": {
"book": [
{
"category": "reference",
"author": "Nigel Rees",
"title": "Sayings of the Century",
"price": 8.95
},
{
"category": "fiction",
"author": "Evelyn Waugh",
"title": "Sword of Honour",
"price": 12.99
}
],
"bicycle": {
"color": "red",
"price": 19.95
}
},
"expensive": 10
}
To parse the above JSON with JMeter, we need to add the JSON Extractor to our test plan.
Right click on Test Plan –> Add –> Post Processors –> JSON Extractor
jmeter json extractor parser
Now, we should see the following view:
json extractor jmeter
In the JSON Path expressions field, we can insert our JSON path to parse the JSON response
Here are some example Json Path expressions that can be used to extract data from the Json document exposed above:
JSONPATH RESULT
$.store.book[*].author The authors of all books
$..author All authors
$.store.* All things, both books and bicycles
$.store..price The price of everything
$..book[0,1] The first two books
$..book[:2] All books from index 0 (inclusive) until index 2 (exclusive)
$..book[2:] Book number two from tail
$..book[?(#.isbn)] All books with an ISBN number
$.store.book[?(#.price < 10)] All books in store cheaper than 10
$..book[?(#.price <= $[‘expensive’])] All books in store that are not “expensive”
$..book[?(#.author =~ /.*REES/i)] All books matching regex (ignore case)
$..* Give me every thing
$..book.length() The number of books
In jmeter I am capturing the variable using Jmeter json path extractor. There are around 7-10 values it captures,How can i pass any random value from all captured values?
Use JSON Extractor (from 3.0 version onwards) which is built-in post-processor in JMeter. Syntax is similar to JSON Path Extractor, so you can reuse the JSON Path Expression which is configured.
Specify Match Numbers to 0 for random value.
From Docs:
Match Numbers If the JSON Path query leads to many results, you can choose which one(s) to extract as Variables:
0 : means random (Default Value)
-1 means extract all results, they will be named as _N (where N goes from 1 to Number of results)
X : means extract the Xth result. If this Xth is greater than number of matches, then nothing is returned. Default value will be
used
For instance, you have this JSON Response:
{
"employees": [
{
"firstName": "John",
"lastName": "Doe"
},
{
"firstName": "Anna",
"lastName": "Smith"
},
{
"firstName": "Peter",
"lastName": "Jones"
}
],
"city": "Castle Rock",
"state": "Maine"
}
And you have JSON Path Extractor to get firstName with the expression: $..firstName. It results into the following JMeter Variables
firstName=["John","Anna","Peter"]
firstName_1=John
firstName_2=Anna
firstName_3=Peter
firstName_matchNr=3
You can now get a random variable using __Random() and __V() functions combinations like:
${__V(firstName_${__Random(1,${firstName_matchNr},)})}
Demo:
See Here’s What to Do to Combine Multiple JMeter Variables article for more details on the approach.
Am New to JMeter. I have a response as below.
{
"id": "35",
"rsd": null,
"col": "green",
"cc": "B5305F",
"pn": "KENWAY TYRES RENEWAL 2014",
"loc": "ABD - MR \/ RS \/ RS",
"isf": "1",
"isl": "0",
"tq": "1",
"pi": null,
"st": "1",
"dsid": "15",
"cid": "2120",
"spl": null,
"wid": "WI\/uo46shpr",
"inv": null,
"pdid": "1620",
"di": "0",
"pl": "0"
},
Here I need to check if
isf=1
isl=0
st=1
if so then I have to take the respective id and I have to pass it as a request.
I have extracted the isf,isl and st values using regular expression extractor. when I try just to print the values using Beanshell PostProcessor as
log.info("is_final="+vars.get("${is_final}"));
only null value passes. Am not getting this. Help me in this. Thanks in advance.
Your Beanshell statement is a little bit flaky. You either need to use eithervars.get("variableName")or directly ${variableName} so if you change your line to:
log.info("is_final="+vars.get("is_final"));
or
log.info("is_final=${is_final}");
given is_final variable exists and not null you'll see it's value in jmeter.log file.
See How to use BeanShell: JMeter's favorite built-in component guide for more information on Beanshell scripting.
Needed Regular expression for the following
if isf=1 and isl=0 and st=1 are true
extract the id values
You have to create the following regex formats to extract the ID values
"id":\s"(.+)",\s{7}.+\s{7}.+\s{7}.+\s{7}.+\s{7}.+\s{7}"isf":\s"1".+\s{7}"isl":\s"0".+\s{7}.+\s{7}.+\s{7}"st":\s"1"
Note
\s - means single space
\s{7} - means seven single spaces
.+ - means any string matches
(.+) - means to extract the id values
I am a beginner with Jmeter tool.
I use JMeter to hit a URL and obtained a response message in JSON format.
I want to parse the response to extract every array element and use it to append to the tail of another URL. Can you please tell me how to do this?
example: { "reply": { "code": "111", "status": "SUCCESS", "customer": [ "222-a", "b-333", "44-4", "s-555", "666", "777", "88-8" ] } }
You can use a Regular Expression Extractor (as child of your URL sampler) to first extract the array of values:
Reference name: ary
Regular Expression: \[([^\]]+)\]
Template: $1$
Match No: 1
then use another Regular Expression Extractor to extract the values:
Apply To JMeter variable: ary
Reference name: vals
Regular Expression: "([^"]+)"
Template: $1$
Match No: -1
The match no -1 creates variables vals_1 .. vals_7, which you can then use in a ForEach Controller to assign to a JMeter variable:
Input variable prefix: vals
Output variable name: id
[v] Add '_' before number?
now you can use the JMeter variable ${id} in a nested URL sampler to pass the customer id in a URL.