Please forgive my ignorance as I'm a jmeter noob. My webservice accepts JSON objects so I was able to write a rudimentary test where I create an HTTP Request with a JSON object in the "Post Body" portion of the http request.
Anyway, what I want to do is have the HTTP Request choose a different JSON object from a csv file or some other input mechanism so that I can randomize the types of queries that are being run during the load test. Is there a way to do this? The closest is probably using variables (section 4.11 in the user manual) but I have a feeling that's not how variables are used.
A second way I've theorized (although I haven't tried yet since I think the method above is easier) is to create a HTTP Request Default obj with a bunch of HTTP Requests with different JSON objects in them and then use a Random Controller to randomly go thru my multiple HTTP Requests on each pass.
If there's a third way, I'm all ears to learn how to use this tool. I'll continue to read and possibly experiment with plan B above. Thanks in advance for any help you can give me.
UPDATE: So I tried the second way and it seems to work. I had 3 different HTTP requests and the number of times each request gets hit varies from run to run. I still invite answers from the community since I'd like to see what the pros do for issues similar to mine.
You have partially answered your question yourself, by saying "csv file or". Here are the specifics.
You will have to use CSV data set config in your test plan to read data from CSV. In your post body, use the variables read from CSV.
Here is a screen cast showing how to use csv data set config.
Related
In my karate tests i need to write response id's to txt files (or any other file format such as JSON), was wondering if it has any capability to do this, I haven't seen otherwise in the documentation. In the case of no, is there a simple JavaScript function to do so?
Try the karate.write(value, filename) API but we don't encourage it. Also the file will be written only to the current "build" directory which will be target for Maven projects / stand-alone JAR.
value can be any data-type, and Karate will write the bytes (or plain-text) out. There is no built-in support for any other format.
Here is an example.
EDIT: for others coming across this answer in the future the right thing to do is:
don't write files in the first place, you never need to do this, and this question is typically asked by inexperienced folks who for some reason think that the only way to "save" a response before validation is to write it to a file. No, please don't waste your time - and please just match against the response. You can save it (or parts of it) to variables while you make other HTTP requests. And do not write your tests so that scenarios (or features) depend on other scenarios, this is a very bad practice. Also note that by default, Karate will dump all HTTP requests and responses in the log file (typically in target/karate.log) and also in the HTML report.
see if karate.write() works for you as per this answer
write a custom Java (or JS function that uses the JVM) to do what you want using Java interop
Also note that you can use karate.toCsv() to convert JSON into CSV if needed.
My justification for writing to a file is a different one. I am using karate explicitly to implement a mock. I want to expose an endpoint wherein the upstream system will send some basic data through json payload using POST/PUT method and karate will construct the subsequent payload file and stores it the specific folder, and this newly created payload file will be exposed through another GET call.
It took me a while to understand this, being that it was a little obvious. I will answer myself, so other can benefit of the answer and ofcourse to see if there's a better way to do this. The problem was based on Axios/Yii2 but I guess this will apply equally to other frontend libraries/frameworks sending data to Yii2.
I needed to post data from a small form made on Vuejs, sending the request Axios to a Action/Controller on Yii2, so data is sent on a simple POST request and the post is getting to the controller, but I was not able to receive the data on the action, $_POST | $post arrives empty (checked using xdebug).
As much as I remember, this had something to do with security. But I already tried by disabling public $enableCsrfValidation, so that was not the problem.
public $enableCsrfValidation = false;
But no matter what, data was not being added to the request/post data inside Yii2.
The following Image, explains the problem you will find there:
The Axisos method that sends the post with test data.
The Yii2 Action stpoed at the place, I should be able to see data.
The capture of the xdebug variables and data for the request.
The capture of Chrome where you can check the payload is sent.
The answer is as I said "kind of obvious", but I could not see that, and I am sure some other devs will probably fall on this.
After searching like crazy and asking everyone, I tried sending the request by using Postman app, yup the best thing I know to test apis.
Dont forgue to add the xdebug cookie to be able to debug your PHP Endpoint.
There I found the first clue «the obvious part», I was not sending data as a form-data, Axios and other libraries, send the data as a raw (application/json) payload.
This means that Yii2 will no be able to find the data inside the post request, yes its there but Yii2 magic will not work, neither you will find this data inside $GLOBALS or in $_POST.
So reading the Yii2 documentation I found that inside request I can use a function that will help me recovering the Raw data, so to do this use the following line:
$raw_data = Yii::$app->request->getRawBody();
Now, that data gets to you as a simple, raw json string, so use the power of PHP to parse it to an object.
$object= json_decode($raw_data );
And finally use the data inside by calling the properties you look for, sent on the pay load:
Json Payload:
{
"msg":"This is my payload",
"id":"11"
}
To use it:
echo $object->{'msg'}; // prints: This is my payload
So that's the way to handle that, now I would like some other points of view to see if there's a better way or cleaner way to do this. Hope it helps.
In theory... is it possible to
parse a POST payload in which a url is supplied,
then use the supplied url to perform a GET to acquire data,
that data is used to query a db and
then send my response to the POST?
Or will my original POST request pick up the GET response and kill everything?
I can't seem to find an example or reference to this being done anywhere...
Thanks!
Yes, it's possible, and not just in theory. I've done much the same thing myself. Just use LWP (or your preferred HTTP client library) to perform the GET as usual. Whether you're doing it within a POST handler or not makes no difference.
I want to send text using POST method to another HTTP server and receive a JSON file in response from XQuery code of pipe in MarkLogic. The idea is whenever XML or JSON documents are inserted into MarkLogic, it triggers a pipe to read it and sends one element to another web server; in my situation, I want to send to Rosoka server to do natural language processing, after that I want to store the returned data "it is json file" in MarkLogic.
I appreciate if you could help.
marklogic only mentioned that is possible but no further help
There are many ways to do this.
A start is to look at "Triggers"
https://docs.marklogic.com/guide/app-dev/triggers
There is also Content Processing Framework ( "CPF" which is a higher level workflow based on triggers).
https://docs.marklogic.com/guide/cpf
if you read those guides you should be able to ask more specific questions if needed.
I'm brand new to Pentaho and I'm trying to do the following workflow:
read a bunch of lines out of a DB
do some transformations
POST them to a REST web service in JSON
I've got the first two figured out using an input step and the Json Output step.
However I have two problems doing the final step:
1) I can't get the JSON formatted how I want. It insists on doing {""=[{...}]} when I just want {...}. This isn't a big deal - I can work around this since I have control over the web service and I could relax the input requirements a bit. (Note: this page http://wiki.pentaho.com/display/EAI/JSON+output gives an example for the output I want by setting no. rows in a block=1 and an empty JSON block name, but it doesn't work as advertised.)
2) This is the critical one. I can't get the data to POST as JSON. It posts as key=value, where the key is the name I specify in the HTTP Post field name (on the 'Fields' tab) and the value is the encoded JSON. I just want to post the JSON as the request body. I've tried googling on this but can't find anyone else doing it, leading me to believe that I'm just approaching this wrong. Any pointers in the right direction?
Edit: I'm comfortable scripting (in Javascript or another language) but when I tried to use XmlHttpRequest in a custom javascript snippet I got an error that XmlHttpRequest is not defined.
Thanks!
This was trivial...just needed to use the REST Client (http://wiki.pentaho.com/display/EAI/Rest+Client) instead of the HTTP Post task. Somehow all my googling didn't discover that, so I'll leave this answer here in case someone else has the same problem as me.
You need to parse the JSON using a Modified JavaScript step. e.g. if the Output Value from the JSON Output is called result and its contents are {"data"=[{...}]}, you should call var plainJSON = JSON.stringify(JSON.parse(result).data[0]) to get the JSON.
In the HTTP Post step, the Request entity field should be plainJSON. Also, don't forget to add a header for Content-Type as application/json (you might have to add that as a constant)