Dynamic URL building in Postman - Test Execution Trace

Test Overview

This test verifies that a dynamic URL is correctly built using variables in Postman and that the API responds with status 200.

Test Code - Postman

Postman

pm.test("Dynamic URL builds correctly and returns 200", function () {
    const baseUrl = pm.environment.get("baseUrl");
    const userId = pm.environment.get("userId");
    const endpoint = `/users/${userId}/profile`;
    const fullUrl = baseUrl + endpoint;

    pm.sendRequest(fullUrl, function (err, res) {
        pm.expect(err).to.be.null;
        pm.expect(res).to.have.property('status', 200);
    });
});

Execution Trace - 6 Steps

Step	Action	System State	Assertion	Result
1	Test starts	Postman test script execution begins	-	PASS
2	Retrieve 'baseUrl' and 'userId' from environment variables	Variables baseUrl='https://api.example.com', userId='12345' loaded	-	PASS
3	Build dynamic endpoint string using userId	endpoint='/users/12345/profile' constructed	-	PASS
4	Concatenate baseUrl and endpoint to form fullUrl	fullUrl='https://api.example.com/users/12345/profile'	-	PASS
5	Send HTTP GET request to fullUrl	Request sent to 'https://api.example.com/users/12345/profile'	-	PASS
6	Check that error is null and response status code is 200	Response received with status 200	Assert err is null and res.status equals 200	PASS

Failure Scenario

Failing Condition: The dynamic URL is incorrect or the API returns an error status

Execution Trace Quiz - 3 Questions

What does the test verify about the dynamic URL?

A It correctly builds the URL using variables and gets a 200 response

B It checks if the URL contains query parameters

C It verifies the URL is hardcoded

D It tests the POST method on the URL

Key Result

Always use environment variables to build dynamic URLs in Postman to make tests flexible and reusable.