I have one GET request which returns a token. I need to run this request 50 times and each returned token is appended to a single file or array which I can randomly choose and use tokens for other requests. Is it possible in Jmeter
Add a Post-Processor to extract the token and save it into a JMeter Variable
Declare the variable as a Sample Variable
Save the extracted value into a CSV file using Flexible File Writer
Use Random CSV Data Set Config to read the random token from the CSV file created in the previous step
Related
How to pick json playload from external file in jmeter?
I Want to login with multiple users for that I need to add Json request. I need to pick json parameter/Json request from external file. Please let me know the process so that i can pick json parameter from external file.
Json request for example
{"username":"honey#est.com","password":"Phone#123","provider":"","access_token":""}
If you want to read a single line from a file - go for CSV Data Set Config or __StringFromFile() function
If you want to read entire file - go for __FileToString() function
If you have a folder with multiple JSON files and would like to iterate all of them - check out Directory Listing Config
It's also possible to read a file using JMeter's HTTP Request sampler
this way you will be able to use Post-Processors to extract partial data if needed.
Very new to JMeter (and a long time Stack Overflow listener but first time caller so take it easy on me) so any help would be appreciated.
I am trying to set up a JMeter test that uses multiple dynamically generated access tokens to run across scenarios. I currently have a set of data using the CSV Data Set Config containing login credentials of a user's email and password for example:
email1#email.com,password1
email2#email.com,password2
Next I send a HTTP POST request to the Login service which generates an accessToken. Then, I am using the JSON Extractor to grab the generated accessToken. After that I am using the BeanShell Assertion to store the accessToken property/variable.
My issue seems to lie here in this last step since it will only store the last generated variable instead of each of the generated accessTokens. I want to be able to store/overwrite the grabbed accessToken for each email password combination. I would like it to modify/populate the CSV file like this:
email1#email.com,password1,accessToken1
email2#email.com,password2,accessToken2
I have also tried using the Pre Processor > User Parameters
Screen shot of User Parameters
I would like to have the "userBearerToken" variable update/overwrite along with the tests, but I cannot find a way to do so or if this can even currently be done.
I'm finding it difficult to word what I am trying to ask, but basically I want to store multiple dynamically generated variables (accessTokens that change and time out) and use them in other tests. I don't care which component can handle this (either the CSV or User Parameter), but I need to be able to store these variables with their corresponding email password credentials.
If you want to store the accessToken value into a JMeter property for using in other Thread Group(s) be aware that properties are global for the whole JVM and remain until JMeter is restarted so if you define a single accessToken property - each JMeter Thread (or iteration) will overwrite the value.
The solution is to use current thread (or iteration) number as prefix or postfix, this can be done using either __${__threadNum} function or relevant JMeter Variable depending on how iteration is defined or both.
Example setup:
In first thread group: ${__setProperty(access_token_${__threadNum},bar,)}
In second thread group: ${__P(access_token_${__threadNum},)}
Demo:
If you want to save the values into a file writing into the current one is not the best idea as you can (and most probably will) get malformed file due to a form of a race condition. So I would recommend using Sample Variables property instead.
If you add the next line to user.properties file:
sample_variables=email,password,accessToken
JMeter will store the variables named ${email}, ${password}, and ${accessToken} along with their values in the .jtl results file which is basically CSV file which can be re-used anywhere else.
However if you have a requirement to store only the credentials and the token you can go for the Flexible File Writer plugin and configure it to save the aforementioned variables values into a separate file, the relevant configuration would be as simple as:
variable#0,variable#1,variable#2
You can install Flexible File Writer plugin using JMeter Plugins Manager
This is my test URL " http://appr.seconddemo.org/hitssurveys/survey?uid=113&offerid=311&subid=subvalues&offr_id={Email} "
I want to hit the url 1500 times per second , and want to change the "{Email}" with real value in each iteration.
How it's possible please give me a step by step guide.
Considering that you need to pass the emails from the external file, the most efficient way that we are using in software testing companies is to pass the variable from .csv or .txt files using 'CSV Data Set Config' element of the JMeter.
Please find the steps that you need to follow:
Add a 'CSV Data Set Config' element from 'Config Element' by right-clicking the thread group
Set Filename field with complete path to your .csv or .txt file that contains your emails
Set Variable field as 'Email' [This variable name should be same as you set in your url request]
Ignore first line to False
Set other fields as per your requirement
Now add HTTP Sampler in your Thread Group and set the Protocol, Server Name, Method & Path as instructed in the screenshot:
Create .csv or .txt file and add all emails separated by new line:
Hope this answer is useful.
You can use the CSV Data Set Config. Put all your email credentials in the CSV file and make sure you have put this CSV file in your JMeter /bin directory.
Add a CSV dataset config in your test plan. Your CSV dataset config should be like:
Now in your thread group, define the number of threads you want to execute and then in your sampler put the path as follows:
http://appr.seconddemo.org/hitssurveys/survey?uid=113&offerid=311&subid=subvalues&offr_id=${Email}
Depending on where do your emails live there are following options:
If they are in a text file, each email on a new line you can use __StringFromFile() function like:
If they are in a database you can use JDBC PreProcessor to fetch the data from the database table column and put your request under ForEach Controller
If you need to provide just some random characters you can use __RandomString() function.
More information: JMeter Parameterization - The Complete Guide
My registration form is accepting body in JSON format, and I need to run the test with 5 different user names.
How do I pass JSON as request body? Also I was unable to pass parameter from CSV file. How can I solve this issue?
Add CSV Data Set Config to your Test Plan
Configure it like:
Filename: full path to the file with your emails
Variable Names: anything meaningful, i.e. EmailId
In your HTTP Request sampler copy the recorded value to Body Data" tab and replace hard-coded email with JMeter Variable like:
{"EmailId" : "${EmailId}"}
In Thread Group set "Number of Threads" to 5
Next time you run your test JMeter will read next line from the file.csv and substitute the ${EmailId} variable with the value from the CSV file.
See Using CSV DATA SET CONFIG article for more information on parameterising your JMeter tests via CSV files.
I am using the jmeter for load testing a web application.I am using csv Data Set Config to pass email to test login scenario.While i am running with 100 concurrent users,it is picking same email from csv file.How can i make sure that it will use one email only once.
I was facing the same issue during concurrency testing using CSV data config. By enabling Sharing Mode=All Threads in CSV data config solved my problem and i was able to send unique data per request
Use Random String Function for generation of different email ids,
RandomString function returns a random String of length using characters in chars to use.
It has three parameters,
1. Length of the desired random string
2. Source characters
3. If you need to store generated string into a JMeter variable you can provide variable name as 3rd argument.
${__RandomString(6,a12zeczclk, MYVAR)}
Example as,
${__RandomString(10,abcdefghijklmnopqrstuvwxyz,)}#MyMail.com