JMeter JSON Path Extractor how-to - jmeter

I want to pull out href values where id : 923 using JSON extractor for Jmeter.
I tried,
$..entries[?(#.id == '923')].links[0].href
But it didn't work. How should I get the values by their id?
Here's some sample data.
"entries":[{
"id":"921",
"updated":"9999-12-31T23:59:59.999Z",
"links":[{
"href":"url1",
"rel":"related-action",
"title":"Execute related action"
},{
"href":"url2",
"rel":"icon"
}
]
},{
"id":"922",
"updated":"9999-12-31T23:59:59.999Z",
"links":[{
"href":"url3",
"rel":"related-action",
"title":"Execute action"
},{
"href":"url4",
"rel":"icon"
}
]
},{
"id":"923",
"updated":"9999-12-31T23:59:59.999Z",
"links":[{
"href":"url5",
"rel":"related-action",
"title":"Execute action"
},{
"href":"url6",
"rel":"icon"
}
]
}
]

Try removing quotation marks so your JSON Path Expression would look like:
$..entries[?(#.id == 923)].links[0].href
Your JSON is malformed, you need to surround it with {} characters in order so JSON Path Extractor could work with it.
Try updating Extras with Libs set plugin to the latest version - 1.3.0 as for the moment.
References:
JSON Path Syntax
Parsing JSON

Related

JMeter: Extract Multiple values from JSON responses and store it in variable(comma seperated)

Can you please let me know efficient way to extract all ItemID from below Json response and store extracted values in a variable with coma separated.
Example: JsonResponse of a request.
[
{
"ItemID": "ITM40400002",
"deliveryId": "1",
},
{
"ItemID": "ITM40400003",
"deliveryId": "2",
},
{
"ItemID": "ITM40400002",
"deliveryId": "3",
}
]
Extracted Variable
Items = ITM40400002,ITM40400003,ITM40400002
Add JSON Extractor as a child of the request which returns the above JSON
Configure it as follows:
Names of created variables: anything meaningful, i.e. foo
JSON Path Expressions: $..ItemID
Match No: -1
Tick Compute concatenation var
That's it, the JSON Extractor will extract all the ItemID attributes values and store them into foo_ALL JMeter Variable
Demo:
More information: API Testing With JMeter and the JSON Extractor

Jmeter extracting response multiple id from array

I am traying the extract the term-id- id value -200000000326 from the below response. controlled-term can have multiple term-id, I have tried with Json extractor $..controlled-term.[[term-id]].[id] and [Thursday 12:22 PM] G, Shwetha C
$..term-id[id]
but this is returning null. can you please help
enter code here:
{
"controlled-terms": {
"controlled-term": [
{
"term-id": {
"id": "200000000326"
},
"term-names": {
"term-name": [
{
"lang": "en",
"name": "All"
}
]
}
}
]
}}
For particular that JSON you provided the relevant JSONPath query would be something like:
$.controlled-term.*.term-id.id
If you need to extract particular ID which is related to some other attribute value - you will have to provide the full JSON response and specify the data relationships.
I would also recommend considering switching to JSON JMESPath Extractor mainly because it has official specification (JSONPath implementations are lacking it so query which works for one implementation may fail for another). Moreover JMESPath language is more powerful and provides a lot of functions and operators which can make your life easier. More information: The JMeter JSON JMESPath Extractor and Assertion: A Guide

How to get Number of rows in Jmeter using Json Path Extractor

My Response is:
{
rows{
["2","xxx","yyyy"],
["3","xxx","yyyy"],
["4","xxx","yyyy"],
}
}
I am using $.rows to get all the rows. as well I am giving $.rows[0].[1] to get the value from 1st row and 1st value..
I am trying to get the total number of rows using $.rows.size() or length. It is not following exception. How to get the number of rows?
Exception: Options AS_PATH_LIST and ALWAYS_RETURN_LIST are not allowed
when using path functions!
Given the following JSON:
{
"name":"John",
"age":30,
"cars": [
{ "name":"Ford", "models":[ "Fiesta", "Focus", "Mustang" ] },
{ "name":"BMW", "models":[ "320", "X3", "X5" ] },
{ "name":"Fiat", "models":[ "500", "Panda" ] }
]
}
If I add JSON Path Extractor as a child of the sample which returns the above JSON and configure it like:
Reference Name: arraySize
JSONPath Expression: $..cars.length()
I am able to see the following variables in the View Results Tree listener:
arraySize=[3]
arraySize_1=3
arraySize_matchNr=1
Which seems to be something you're looking for.
You can install JSON Path Extractor along with JSON Path Assertion using JMeter Plugins Manager

Extract JSON value based on condition using Jmeter from an HTML page

I want to extract JSON value based on condition using jmeter from an HTML page.
<!doctype html>
var list_data_obj = [{
"list": [
{
"field1": "123",
"field2": "xyz"
},
{
"field1": "456",
"field2": "abc"
},
{
"field1": "789",
"field2": "asdf"
}
],
"other1": "qwerty",
"other2": "asdfgh"
}]
</html>
have tried JSON Path Extractor as below but returned NULL.
$.list[?(#.field2 == 'abc')].field1
Thanks
You won't be able to use JSON Path Extractor as response data is not a valid JSON, it looks like a mix of HTML and JavaScript therefore you will need to use Regular Expression Extractor instead.
The relevant Regular Expression will look like:
"field1": "(.+?)",\s.*"field2": "abc"
References:
JMeter: Regular Expressions
Using RegEx (Regular Expression Extractor) With JMeter
Perl 5 Regex Cheat sheet
The key is to first extract a valid json using a regular expression, then apply a json path extractor on the previously extracted json.
You can perform a 2-step extraction to do this:
First Extract the Json from the page by performing a regexp extractor with "list": ([^^]+}\]), group $1$,
Then perform a Json Extractor on the extracted variable by selecting JMeter variable, then apply your json path $.list[?(#.field2 == 'abc')].field1.
Useful resources:
How to extract data from Json with JMeter

jmeter regular expression extracting specific

I want to extract : children from "name":"recordInstanceId" from the following JSON.
The output should give me "lQBfjAu....P0tk" . How do I do it using Regex Extractor?
{
"name":"recordTypeView",
"attributes":{
"xmlns":""
},
"children":["all"
]
},{
"name":"isRuleBacked",
"attributes":{
"xmlns":""
},
"children":["false"
]
},{
"name":"recordInstanceId",
"attributes":{
"xmlns":""
},
"children":["lQBfjAu....P0tk"
]
}
If you need to extract lQBfjAu....P0tk from the following response:
{
"name": "recordInstanceId",
"attributes": {
"xmlns": ""
},
"children": [
"lQBfjAu....P0tk"
]
}
It could be done with JSON Path Extractor (available via JMeter Plugins) with a simple JSON Path Expression like:
$..children[0]
It isn't recommended to use Regular Expressions for dealing with JSON data, I would recommend extracting data from JSON responses with the JSON Path Extractor.
References:
JSON Path Syntax
Plugin installation instructions and XPath to JSON Path mapping
If you have any troubles - update your question to show complete response

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