How to read multiple values in one row from csv file to post body as variable in Jmeter - arrays

Question

How to make an Post HTTP request Body from multiple values in a single column from a CSV file?
In CSV file, under the transactional_currencies, I need to insert two or more values as per requirement.
This is the Json Body need to pass in Post HTTP request Body
{
"country_name": "${country}",
"status": "$ {status}",
"transactional_currencies": ["${transactional_currencies[0]", "${transactional_currencies[1]"]
}``
``

Answer 1

I'm not sure about what did you ask but let's give it a try
You should define a delimiter character in your CSV dataset config element.
For example
Single Line in our CSV: sample#sample.com,testusername,testpassword
After adding a CSV data config to your project, open the configuration panel.
Choose your delimiter character as " , " since the line above has
some commas.
Choose variable names as "email", "username" and "password"
Now you have splitted a single csv line into 3 different variables.
On your request's body, write these variables as ${email} , ${username}
, ${password}

Answer 2

Not with the CSV Data Set Config
If you have fixed number of entries in the transactional_currencies (i.e. always 2) you can use __CSVRead() function where you will be able to decide when to go to the next entry/row.
If the number of entries in the transactional_currencies is dynamic, you can go for JSR223 PreProcessor and build your request body using Groovy language as it's described in the Apache Groovy - Parsing and producing JSON article