Please help me to get out the problem which I am facing. I have a JSON response like this:
"{"Version":10,"Collections":[{"Id":"*******","Name":"","Description":null,"IsValid":false,"ABC":"\\XYZ\\collection\\","C
and want to fetch the values of collections which has n number of Id's but JSON extractor is not working here.
Don't post text as image otherwise even those who are willing to help won't re-type your code or use OCR software in order to reproduce your issue
What you're showing to us is not a valid JSON, you can check it yourself using an offline or online JSON Lint Tool hence you won't be able to use JSON Extractor for this.
If you get escaped JSON as a part of some JSON attribute, like this one:
{
"some-attribute": "{\"foo\":\"bar\"}"
}
You won't be get this bar value directly so you will need to do this in 2 steps:
Use 1st JSON Extractor to get the value of some-attribute
Use 2nd JSON Extractor to get the value of foo attribute
Demo:
More information: API Testing With JMeter and the JSON Extractor
Related
I want to extract name from here
{"name":"morpheus","job":"leader","id":"938","createdAt":"2022-08-16T18:37:45.745Z"}
i used "name":"(.*?)", as a regex but when check the reponse i found it as ${name} not as morpheus
JSON is not a regular language hence using regular expressions is not the best idea, JMeter comes with JSON Extractor which allows executing arbitrary JSONPath queries to fetch the required data from JSON responses.
Suggested JSON Path Extractor setup:
The Regular Expression Extractor should also work if you configure it like this:
This is my JSON extractor
Debug sampler
Token I am getting in response
But the token is null
Your setup is wrong, the JSON attribute you're looking for is token, not the access_token therefore you need to amend your JSON Path expression to look like:
$.token
also it's hard to say looking at the image on which level the token lives, you might need to use deep scan operator instead like:
$..token
More information: API Testing With JMeter and the JSON Extractor
I'm new to the World of triplets :-) I'm trying to use DotNetRDF to load the SOLR searchresult into a Graph using DotNetRDF.
The URL I'm getting data from is:
https://nvv.entryscape.net/store/search?type=solr&query=rdfType:https%5C%3A%2F%2Fnvv.entryscape.net%2Fns%2FDocument+AND+context:https%5C%3A%2F%2Fnvv.entryscape.net%2Fstore%2F1
The format is supposed to be "RDF/JSON". No matter what parser or what I try - I only get "invalid URI". Have tried to load from the URL and also tried downloadning the result to a file and load from file, same error.
I'm using VS2017 and have "nugetted" the latest version of DotNetRdf.
Please help me, what am I missing?
Regards,
Lars Siden
It looks like the JSON being returned by that endpoint is not valid RDF/JSON. It does appear to contain some RDF/JSON fragments but they are wrapped up inside another JSON structure. The RDFJSONParser in dotNetRDF requires that your entire JSON document be a single, valid chunk of RDF/JSON.
The value at resource.children[*].metadata is an RDF/JSON object. So is the value at resource.children[*].info. The rest is wrapper using property names that are not valid IRIs (hence the parser error message).
Unfortunately there is no easy way to skip over the rest of the JSON document and only parse the valid bits. To do that you will need to load the JSON document using Newtonsoft.JSON and then serialize each valid RDF/JSON object you are interested in as a string and load that using the RDFJSONParser's Load(IGraph, TextReader) or Parse(IRdfHandler, TextReader) method.
I will get json response from last request, then I will parse the response and get a variable array, then create new request base on each element in that array one by one. I don't know how to implement it.
Use JSON Extractor and ForEach Controller combination. The idea is to have variables like:
var_1=foo
var_2=bar
var_3=baz
So you would be able to iterate them using foreach loop. See Using Regular Expressions in JMeter article to get the overall idea.
Steps to follow:
Add JSON Extractor (>= 3.0 version) Or JSON Path Extractor (< 3.0 version) plugin, to the HTTP Request sampler, as a child, in which JSON response is received.
Add the JSON Path Expressions to capture the specific values and store it in variable names, say capturedArray. refer JSON Path Syntax.
In later requests, i.e., HTTP Request Samplers, you can retrieve the array value by using the syntax ${capturedArray}
I have some specific scenario for retrieving Access Token from API using jmeter.
I need to implement following test case and have no idea how to implement this (I am new in jmeter):
Send GET request to server.
Server will return following response: {"RequestToken":"81d1fcd6146d41f69a966a2c083382c7","Expires":3600}
After that I need to send POST request to server with parameter of "RequestToken" from step #2.
Thanks!
Answer of Dmitri T really helped me! Thanks a lot!
If your response {"RequestToken":"81d1fcd6146d41f69a966a2c083382c7","Expires":3600} is the full one you can add a Regular Expression Extractor Post Processor to GET request configured as follows:
Reference Name: anything meaningful, i.e. token
Regular Expression: {"RequestToken":"(.+?)","Expires":3600}
Template: $1$
After that you can refer to extracted value as ${token} or ${__V(token)} in POST request.
If you need to deal with more complex JSON structures I would recommend using JSON Path Extractor available via JMeter Plugin. It allows fetching data from JSON responses in more "intelligent" way as big JSON entities cannot be easily parsed via regular expressions.
In this case relevant JSON Path query will look like $.RequestToken.
See Using the XPath Extractor in JMeter guide for more details (scroll down to Parsing JSON).
Hope this helps.