POST request in Postman - Test Execution Trace

Test Overview

This test sends a POST request to create a new user and verifies that the response status is 201 and the returned data matches the sent data.

Test Code - Postman

Postman

pm.test("Create user POST request", function () {
    const requestBody = {
        name: "John Doe",
        job: "Software Tester"
    };

    pm.sendRequest({
        url: "https://reqres.in/api/users",
        method: "POST",
        header: {
            "Content-Type": "application/json"
        },
        body: {
            mode: "raw",
            raw: JSON.stringify(requestBody)
        }
    }, function (err, res) {
        pm.expect(err).to.be.null;
        pm.expect(res).to.have.property('status', 201);
        const jsonData = res.json();
        pm.expect(jsonData).to.have.property('name', requestBody.name);
        pm.expect(jsonData).to.have.property('job', requestBody.job);
        pm.expect(jsonData).to.have.property('id');
        pm.expect(jsonData).to.have.property('createdAt');
    });
});

Execution Trace - 7 Steps

Step	Action	System State	Assertion	Result
1	Test starts	Postman test runner is ready to execute the POST request test	-	PASS
2	Sends POST request to https://reqres.in/api/users with JSON body {name: 'John Doe', job: 'Software Tester'}	Request is sent over the network to the API server	-	PASS
3	Receives response from server	Response contains status code 201 and JSON body with created user data	Check that error is null	PASS
4	Verifies response status code is 201	Response status code is 201 Created	pm.expect(res).to.have.property('status', 201)	PASS
5	Parses response JSON and verifies 'name' and 'job' match request	Response JSON has 'name' = 'John Doe' and 'job' = 'Software Tester'	pm.expect(jsonData).to.have.property('name', 'John Doe') and pm.expect(jsonData).to.have.property('job', 'Software Tester')	PASS
6	Verifies response JSON contains 'id' and 'createdAt' fields	Response JSON includes 'id' and 'createdAt' properties	pm.expect(jsonData).to.have.property('id') and pm.expect(jsonData).to.have.property('createdAt')	PASS
7	Test ends successfully	All assertions passed, user creation verified	-	PASS

Failure Scenario

Failing Condition: Response status code is not 201 or response JSON does not match expected data

Execution Trace Quiz - 3 Questions

What does the test verify after sending the POST request?

A That the response status code is 404

B That the response body is empty

C That the response status code is 201 and response data matches the request

D That the request method is GET

Key Result

Always verify both the HTTP status code and the response body content to ensure the POST request succeeded and returned expected data.