I want to hit a remote API using a post request. It's working fine with Python, but when it comes to my Knime workflow, the remote end is complaining that it can't find a needed parameter (type in the image below). What is the correct way to pass the post parameters in Knime? In Postman I would have a body tab for example to define everything I needed, but apparently I'm missing something in Knime.
Related
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.
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.
I'm trying to replicate a request I make on a website (ie zoominfo.com) using the same http POST parameters using chrome rest console, but it fails for some reason. I'm not sure if there is a missing field or it's not working because the origin of the request isn't valid.. can someone point me out in the right direction? Below is a detailed explanation of the experiment:
ORIGINAL CASE
basically if I go to zoominfo.com (registered and all) I see a form page that I need to fill:
if I hit enter.. the site makes an ajax call. If I open the chrome web dev tools, and open the network tab, I see the details of the ajax call:
notice the body of the POST has the name John Becker in it:
{"boardMember":{"value":"Include","isUsed":true},"workHistory":{"value":"CurrentAndPast","isUsed":true},"includePartialProfiles":{"value":true,"isUsed":true},"personName":{"value":"john%20becker","isUsed":true},"lastUpdated":{"value":0,"isUsed":true}}
the response is shown under the respones tag:
WHAT I'M TRYING TO DO
basically replicate what i've done above using a REST console (note: so there is nothing illegal here.. i'm just replacing a chrome browser action with a rest client action.. i'm not hacking anyone and i'm not getting information I can't get the normal way, but if someone feels otherwise.. please let me know)..
so I plug in the same parameters as above into the rest console:
now i'm not sure about authentication.. but just to be safe, i entered the same user name and pwd i have for the site into the REST console:
but then I keep on getting an error as a response to my rest console's request:
UPDATE: CORRECT ANSWER:
so according to JMTyler's answer.. I had to simply include criteria in the RAW body, and convert it to url encoding.. in addition to that, I had to explicitly set the encoding in the rest console body..
looking at the chrome inspector more closely, it turns out that I simply had to click on view source:
to get the url-encoded value that I needed to put in the RAW body in the rest console:
I also had to set encoding to gzip,deflate,sdch and things worked fine!
The form is posting all that JSON under the field criteria. You can see this in the screencap of the chrome dev console you posted.
Just start your raw body in rest console with criteria= and make sure the json has been url-encoded. That should do it.
No authentication is needed because none is passed through the headers in your screencap. Any cookies you have when you load the page normally will also be loaded through rest console, so you don't need to worry about explicitly setting them.
Reading your problems I'll make an educated guess:
zoominfo does not provide an RESTful API.
Rest-Console understands and uses HTTP Authentication, which is different from the authentication handler zoominfo implemented.
A possible way to work around may be:
Make a call to the login-page via rest console. you'll get back cookies and a lot more.
In subsequent requests to zoominfo be sure to include those cookies (likely holding some session information) in your request, therefore acting like a browser.
Hy,
I'm working on a jsFiddle with a openlayers example in it.
http://dev.openlayers.org/releases/OpenLayers-2.11/examples/snapping.html
At the moment it's not working because it's not getting a response for the http request to get data. How do I fix that?
The jsFiddle is here: http://jsfiddle.net/TcuxA/6/
Go to the line "// create three vector layers" in the script.
There are 3 requests for data. If you type the URLs in your browser you get the JSON, but my firebug gives 3 errors when I run the jsFiddle.
I tried fixing with jsFiddle echo ( http://doc.jsfiddle.net/use/echo.html ), but that didn't work. I don't know how to change the script to load the data otherwise.
Why can't I get the json by these URLs? What are good sollutions?
What you are experiencing is an exception being thrown by the XMLHttpRequest object, because you are using AJAX to call elements from different domain. This is better said, for example, in here:
"The XMLHttpRequest object is prevented from calling web services from outside its own domain. This is sensible given that if you called a script in one place and it, in turn, called a script on another server, it could leave an application open to all sorts of malicious scripts, hacks and exploits."
So the easiest way to do is to code it locally and call a local copy of the files (poly.json, line.json and point.json) that would reside on your local server. For testing if all displays on a map you could hard-code the files into your code. I am not sure how it could be achieved otherwise.
A good solution can be this : using github responses . You can store your example in github, along with the predefined XHR requests responses.
New here. I've searched quite a bit for a working solution to my problem, but even though I have found posts with promising titles, none of the solutions have worked.
I am deploying an MVC2 web app to a client's server.
I did my development on Win2k8 Server, but they are running Win2k3 sever.
The app's only purpose is to receive some record ID information as HTTP parameters, check in the database for the status of the given record or records, and then return the status information as a simple string such as "Completed" or "Incomplete" in JSON format.
This getJSON code works fine in the development environment.
Inexplicably to me, on the client's server, the getJSON request receives a null response from the application.
There is no cross-domain action AFAIK... the result is the same from the client's server or from my machine via VPN.
In the MVC model's Json code, a common solution for people is to add the "JsonRequestBehavior.AllowGet" attribute to the Json result being returned. I did this long before trying to deploy it, and as I said, it has worked fine in the dev environment.
Using Firebug, I have watched the same request URL get sent to both my local server and the client server - the response headers from both servers are the same, but the response content from my server is shown as:
{"Result":"No Data"}
Which is what I want.
There is literally no content shown in the response from the client's server..? But the request gets an HTTP 200 code and is recorded as a success in the reponse's status attribute.
The response header content type in both situations is "application/json"
But wait, there is more!
If I manually enter the request to each server in the Firefox nav bar, and hit enter, in both cases it responds with:
{"Result":"No Data"}
Which is what I want. So why can I get the result I want from the MVC app on the client's server only when I hand-enter the request URL in Firefox, but not from the Javascript code?
I have tried forcing different output content types ... using the jQuery ajaxSetup method...
$.ajaxSetup({
async: false,
dataType: 'text'
});
or
$.ajaxSetup({
async: false,
dataType: 'html'
});
and again wtih 'script', and 'json'. I also tried the conversion options such as 'text json' or 'html json' or 'json text' and so forth.
Some of the posts I'm reading, and my gut feeling, though, suggest the problem is not the jQuery code making the request that is at fault... I don't see how the same jQuery request point to a different server running the same app would suddenly cause that server to send back a 'null' value.
By null, I want to be clear... I mean nothing is sent. There is no {} or {null} or any sign of JSON... just blank whiteness of non-existence :P
Even if nobody knows the answer, I would love some input perhaps suggesting where I should focus my sleuthing ... client or server?
If the problem is the server, it seems hard to really know that the MVC stuff is running 100% on the IIS6 server, but in general it seems to work. I have a different MVC app running on the client server which responds to the virtual paths, and generally runs the same as on dev machine.
I have found one thing ... the request headers are somewhat different? The Request Headers sent to the IIS7 setup include an "X-Requested-With: XMLHttpRequest", "referrer" , and "cookie" field/value.
I could guess that the lack of the "X-requested-with: XMLHttpRequest" in the IIS6 request headers is a clue, but I do not see then how the same javascript code pointing at a different server can generate different request headers itself. So how else are those being generated?
The javascript is embedded in an ASP.NET page, btw.
Oooh.. frustration!
Thanks for any input.
Odd Progress ... apparently there is some sort of issue with IIS6 handling the query. Although I have not payed any attention to JSONP, a post elsewhere suggested that sometimes use the "&callback=?" parameter at the end of a .getJSON request URL would force it into GET mode and that worked frequently for problems getting data from the server. So I did that... and it did work, sort of. The proper {"Result":"No Data"} was returned in response to the request... which seems good. However, the way that the JSONP callback works, it generates its own script to do the calling and fetching and interpreting of the incoming JSON. In this case, it interprets the JSON to need a label which it does not have, thus an error is thrown "invalid label" ... there must be some way to hack things to just deliver the JSON, but the whole required use of JSONP callbacks suggests that the server configuration is wrong, right? Or why does it work without JSONP for IIS7 and not IIS6?
Despite my not liking the callback JSONP solution, it appears to work ok. The error is still returned about an invalid label, but that does not appear to stop the remaining javascript from running... and so the application is working with IIS6 now. I have not tested the fix of using the callbacks and JSONP against IIS7 yet, but I expect it will work well enough.
Here is a link to the discussion that lead me to my current solution. I do still hope to find a more elegant solution, however.
NeoWin.net
Are you certain that your App Extension Mappings are set up correct?
Follow this article for running MVC2 on IIS6 and ensure all the different configurations have been done, that's probably the first step before going further and investigating specifics.
I'm really inclined to believe it's related to HTTP Verbs.