Postman Pre-Requisite Script: Store Email ID based on Random First name and Last name

Question

I am struggling here to generate an email ID that consists of Random First name and Random Last name. I don't want to use the dynamic Variable $randomEmail because it generates any random email which is totally different from the First name and Last name and looks very unrealistic.

I have a Pre-Requisite Script in Postman, Where I have two environment variables first_name and last_name, I use the faker library to generate dummy data as Following. The dynamic variable $randomFirstName and $randomLastName, generate and set the Environment variables as following. Let assume that $randomFirstName=John and $randomLastName=Doe

postman.setEnvironmentVariable("first_name", pm.variables.replaceIn('{{$randomFirstName}}'));
postman.setEnvironmentVariable("last_name", pm.variables.replaceIn('{{$randomFirstName}}'));

Now I want to use the Environment variable first_name and last_name to use in the following variable email_formatted to generate the email ID which is consisting of first name and last name.

email_formatted = "{{first_name}}" + '_' + "{{last_name}}" + '@gmail.com';
postman.setEnvironmentVariable("email", email_formatted);
console.log("Email: " + postman.getEnvironmentVariable("email"));

However, on the Consol, I am getting the following result.

ACTUAL "Email: {{first_name}}_{{last_name}}@gmail.com"

EXPECTED "Email: John_Doe@gmail.com"

I think I am doing some small mistakes here in syntax or how the Environment variables are used in the Pre-Requisite Script. Thanks for your time in reading, and any leads would be helpful

PDHide · Accepted Answer · 2020-12-20T17:31:05.277

1

email_formatted = pm.environment.get("first_name") + '_' + pm.environment.get("last_name") + '@gmail.com';
pm.environment.set("email", email_formatted);
console.log("Email: " + pm.environment.get("email"));

in postman we can refer variable as {{variablename}} only in non script sessions. In script you have use

pm.environment.get('varaiblename')

to access environment varaible ,to access other varaibles use as pm.globals, pm.variables etc

As Danny pointed out postman is moving to new pm.* API , and going to deprecate postman.* in future .

So start using the new api as the documentation is extensively updated and available mostly for pm.* Api .

Note: setnextrequest , is still available only through postman.*

So postman.setNextRequest , works pm.setNextRequest will not

The postman app has auto suggest for pm.* , It shows available methods which makes scripting easier and fun

edited Dec 20 '20 at 17:31

answered Dec 20 '20 at 16:10

PDHide

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I'd recommend using all the `get` and `set` methods from the newer `pm.*` API rather than mixing and matching old and new. – Danny Dainton Dec 20 '20 at 16:50
Updated, the answer x – PDHide Dec 20 '20 at 17:00
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Thanks. The new versions have auto suggestion in the sandbox to show which methods are available under that API. – Danny Dainton Dec 20 '20 at 17:12
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@PDHide Perfect. This works. Thanks for the detailed answer. – Nihir Kumar Dec 20 '20 at 17:31

score 0 · Answer 2 · answered Dec 20 '20 at 17:33

If Still using the old Postman libraries then the Following would also Work.

email_formatted = postman.getEnvironmentVariable("first_name") + '_' + postman.getEnvironmentVariable("last_name") + '@' + postman.getEnvironmentVariable("environment")+ 'gmail.com';
postman.setEnvironmentVariable("email", email_formatted);
console.log("Email: " + postman.getEnvironmentVariable("email"));

Postman Pre-Requisite Script: Store Email ID based on Random First name and Last name

2 Answers2