How can you add a header to a specific request in JMeter? - jmeter

I've got a test fragment that makes a few requests, which work fine. I now want to add a new PUT request that uploads a file to a an azure storage account container. I currently get a 400 with an error that a mandatory header hasn't been included. After a little research it appears I need the 'x-ms-blob-type' header with a value of 'BlockBlob'.
This is where my issue lies. I've added an HTTP Header Manager to that particular request, but the header doesn't seem to get added. There is a Header Manager at the fragment level, that is used to apply generic headers to all requests, but this header manager is just for that request. I was expecting the 2 to be merged, but it looks like no headers are being applied to that particular request.

Your expectation is correct, HTTP Header Managers obey JMeter Scoping Rules and top-level headers are being recursively merged to the local HTTP Header Managers.
So try looking at Request -> Request Headers tab of the View Results Tree listener and see what headers are being sent
Additionally you can enable debug logging for JMeter's HTTP components by adding the next line to log4j2.xml file
<Logger name="org.apache.http" level="debug" />
and upon JMeter restart you should see the outgoing headers in jmeter.log file

You can also add header manager at request level as JMeter gives preference to the request level header manger even it is present at test plan level.
For reference see the attached snapshots.

Related

Global HTTP Header Manager with http script of uploading file

Im writing script which have https request for uploading file. For this script I need to overwrite 'Content-Type' from global http header manager.
Is there any way to perform this in jmeter?
As per HTTP Header Manager documentation:
JMeter now supports multiple Header Managers. The header entries are merged to form the list for the sampler. If an entry to be merged matches an existing header name, it replaces the previous entry. This allows one to set up a default set of headers, and apply adjustments to particular samplers.
HTTP Header Manager respects JMeter Scoping Rules so if you need to override a header - add another HTTP Header Manager as a child of the Sampler which header you need to "override"
Demo:

JMeter - I need to pass a parameter called "Cookie" in the request header

I am using apache jmeter 5.2.1 with Java 8 to perform the performance test in a JSF application.
I need to send in the header of an HTTP request a parameter called "Cookie" according to the example below:
I've tried several things but none work.
I have already used the HttpHeaderManager resource but apparently the word "Cookie" is a JMeter reserved word so I can't create a parameter in the Header with the name "Cookie".
If I create a parameter in HttpHeaderManager with any name it is appended to the request header, but if I create with the name "Cookie" which is the name I need to use JMeter simply ignore it and do not add it to the request header .
I saw many posts indicating that I used the following code snippet:
CookieManager manager = sampler.getCookieManager();
Cookie cookie = new Cookie("JSESSIONID",vars.get("jSessionId"),"${serveraddress}",false,0);
manager.add(cookie);
I've tested it but it doesn't work either, it returns the following error whenever I try to use it:
I also have an Http Cookie Manager but its value is sent in the request body and not in the header.
I also tried to use the Http Autorization Manager as I saw in some posts but it only works when the login is done at a prompt in the browser.
Can someone help me?
Just add a HTTP Cookie Manager to your Test Plan and it will automatically "manage" cookies for you (the HTTP Request samplers must be in the HTTP Cookie Manager's scope)
You can double check that JMeter sends correct Cookie header using a 3rd-party sniffer tool like Wireshark or Fiddler
If you added the HTTP Cookie Manager but JMeter still doesn't send the JSESSIONID cookie it might be the case there is a problem with the cookie itself, i.e. it doesn't match domain/path or expired or your HTTP Request sampler configuration is not correct.
If you absolutely sure that your application behaves as expected you can configure JMeter to be less restrictive by:
Choosing a more "relaxed" cookie policy, i.e. netscape
Adding the next line to user.properties file:
CookieManager.check.cookies=false
You can also add the next line to log4j2.xml file:
<Logger name="org.apache.jmeter.protocol.http.control" level="debug" />
this way you will get comprehensive information of the Cookie Manager's behaviour in the jmeter.log file
More information: HTTP Cookie Manager Advanced Usage - A Guide

How to pass dynamic cookie in jmeter?

I have added HTTP Cookie Manager and HTTP Authorization Manager in Test Plan. When run the script following response message I have received
Response code: 401
Response message: UNAUTHORIZED
{"message":"Access is Denied","severity":"danger"}
This is my cookie
_ga=###; _gid=###; _gat=#; accessInfo={###}; userInfo={###}; 574ae166fc51fa5bdbd8beef725e77d7={###}; session=.###
But when run script only partial session is pass from my above cookie data through header request.
I also tried using regular expression but not getting response.
Can anyone suggest me how and where I can pass my cookies dynamically?
If the next request doesn't have all the cookies which you can see in the previous response Set-Cookie header most probably it indicates problem with the cookies.
You can check what exactly JMeter does with cookies by enabling debug logging for the HTTP Cookie Manager, in order to do this add the next line to log4j2.xml file (lives in "bin" folder of your JMeter installation:
<Logger name="org.apache.jmeter.protocol.http.control.CookieManager" level="debug" />
JMeter restart will be required to pick up the change.
Other things to try:
Turn off JMeter built-in checks for cookies. In order to do this add the next line to user.properties file
CookieManager.check.cookies=false
Play with "Implementation" drop-down value, i.e. try choosing less restrictive implementation, for example netscape

JMeter Http Header manager doesn't add header to request

I have a JMeter plan using an HTTP sampler that I am trying to add a header to the request. The header should be really simple custom: type
But when I run the test I don't see the header....
What am I missing? Why is my header not showing up in the request?
Update
I also tried this but got the same result.
Your issue is due to wrong scoping of Header Manager.
Either put it as child of Get Session or child of Test plan if it applies to whole Requests of test plan.
Example:
If it fails, it could be due to your User Credentials Pre-Processor (which runs before GetSession request is sent), but as you don't show code.
Another option is that you're seeing redirect request instead of initial one, check your config so that you see the 2 requests:
I had the same issue (When editing the HTTP Header at the thread level it would use my old values) I didn't realize I had a HTTP Header at a lower level as well. So make sure to remove any other instance of HTTP Header manager. I had one at the Thread Group level and the https request level. I deleted the one at the https level and it fixed my issue.

Jmeter- Overwrite Global HTTP Header Manager over HTTP Header Manager available with Http Request Sampler

For my application when I record , each HTTP request has required Headers that are maintained at individual HTTP Header Manager.
Now an Authentication token is also managed in the Header manager for every request after login. For multiple users I pass variable for this Authentication token. To make this happen I need to edit in every Header(or I do it opening jmx file in Notepad++ and then replacing all). But is there any way like using a global HTTP header manager that will override over Sample lever Headers.
As per Using JMeter's HTTP Header Manager article:
JMeter now supports multiple Header Managers.
The header entries are merged to form the list for the sampler. If an entry to be merged matches an existing header name, it replaces the previous entry, unless the entry value is empty in which case any existing entry is removed. This allows one to set up a default set of headers, and apply adjustments to particular samplers.
If you don't like the situation you can uncheck "Capture HTTP Headers" box in the HTTP(S) Test Script Recorder
If all headers are same throughout the script then you can remove all individual headers which are currently child of http request samplers and keep only one header manager outside of all request which will act as a global header manager and it will pass values to all requests

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