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I am fairly new to Jmeter and hence having trouble figuring out the following: I am testing a web service that needs a valid cookie to be sent in header. I have an endpoint url against which the userid and password validates. How do I validate the credentials against the url and extract the cookie for the user and send it in header for the request in Jmeter?
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To send cookies to the server, you need to add the "Cookie: name=value" header to your request. To send multiple Cookies in one cookie header, you can separate them with semicolons. In this Send Cookies example, we are sending HTTP cookies to the ReqBin echo URL.
How to Configure and Use the JMeter HTTP Request. To add an HTTP Request, add a Thread Group, and then right-click on Thread Group -> Add -> Sampler -> HTTP Request (see figure 1).
Cookies are handled in JMeter using ‘HTTP Cookie Manager’. Using this config element you can simulate browser activities. HTTP Cookies Manager does work in two ways:
In the previous tutorial, I have explained how we can send GET request in JMeter. Add Thread Group To add Thread Group: Right click on the “Test Plan” and add a new thread group: Add -> Threads (Users) -> Thread Group In the Thread Group control panel, enter Thread Properties as follows: We will take an example of row no 5.
We can perform GET as well as POST operation in JMeter. In this tutorial, we will only explain how we can perform GET operation. To add Thread Group: Right click on the “Test Plan” and add a new thread group: Add -> Threads (Users) -> Thread Group
After receiving an HTTP request, a server can send one or more Set-Cookie headers with the response. The cookie is usually stored by the browser, and then the cookie is sent with requests made to the same server inside a Cookie HTTP header. An expiration date or duration can be specified, after which the cookie is no longer sent.
JMeter provides HTTP Cookie Manager which automatically handles cookies so in the majority of cases you don't need to do anything apart from adding the HTTP Cookie Manager to your Test Plan
However in some cases, i.e. in some CSRF implementations you need to add a request header holding previous response specific cookie value. In that case you should be acting like:
Add the next line to user.properties file (lives in JMeter's "bin" folder
CookieManager.save.cookies=true
COOKIE_. So for example if you have cookie with the name of foo you will be able to access its value as ${COOKIE_foo}
${COOKIE_foo} as a value (replace foo with your actual cookie name)More detailed information: Using the HTTP Cookie Manager in JMeter
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