Postman is one of the most popular API platforms for building, designing, and testing web APIs. If you’re appearing for a software developer interview that involves creating and designing APIs, you can expect a few Postman interview questions about the application’s core features and benefits.
To give you an idea about the type of Postman interview questions asked at technical interviews, we’ve compiled a list of questions to help you with your prep. As such, API modeling is a core systems design concept, so you can typically expect Postman interview questions at systems design interviews.
Freshers aren’t really expected to know systems design concepts in detail. But at developer interviews, you can expect a few basic questions about the software application.
Let’s go ahead and look at some common Postman interview questions and answers for freshers.
Q1. What do you understand about collections in Postman?
Collections in Postman are groups of similar requests and essentially help to organize requests in dedicated folders.
Q2. What are some core benefits of using the Postman API platform?
This is one of the most common Postman interview questions for freshers. Some benefits of using the Postman API platform include:
Q3. Which command will you use to log values of variables in Postman?
To log variable values in the Postman console, the command that’s used is:
console.log(pm.variables.get(“variable_name”));
Q4. What are some common authorization methods associated with Postman?
Some authorization methods associated with Postman include:
Q5. What is Basic Authorization used for in Postman?
Again, this is one of the most popular Postman interview questions asked at tech interviews. Basic authorization in Postman is an authorization technique for HTTP agents, such as web browsers.
Let’s look at some sample Postman interview questions for freshers.
Experienced programmers generally go through multiple systems design rounds at technical interviews. This means that there is a greater emphasis on API modeling and API design for senior or experienced programmers. To help you understand what type of Postman interview questions are asked of experienced developers, we’ve compiled this list of the most common questions to expect.
This section covers Postman API testing interview questions and Postman REST API interview questions, among other core concepts pertaining to the software application. Let’s take a look.
These Postman interview questions for freshers and experienced programmers will give you a clear idea of what to expect at your next technical interview.
Here are some Postman API testing interview questions to help you prepare for your next technical interview.
Postman is a web-based collaboration platform for API development. It provides a multitude of features in the design, building, testing, and documentation of APIs. It makes the testing of APIs easier by providing a user interface for sending HTTP requests, such as GET, POST, or PUT, among others, and analyzing responses.
It is highly adopted because it supports multiple API types, such as REST and SOAP, among others, with extended functionality like automated testing, environments, and collections.
Of the many important features supported in Postman, one of them is chaining requests. In simple terms, chaining requests in Postman facilitates a way to have the output of one request be an input for subsequent requests.
This happens by extracting information from the response of a request and storing it into a variable that can be utilized in subsequent requests. For example, you may want to chain requests by pulling a token from a login request to use in the authorization header of the next request.
Authentication is the process of identifying a user, whereas authorization involves permissions a certain authenticated user has to view particular resources. Authentication in Postman can be done through Basic Auth, OAuth, and Bearer tokens, while the authorization is specified by specifying permissions.
In Postman, API keys, among other sensitive data, should be kept in environment variables. That way, no request will have such sensitive information directly hard-coded, which isn’t safe. Variables can also be set as secret, which encrypts them. Then you are allowed to export or import your environment files without exposing the actual keys.
A Postman Collection is a feature to organize API requests in folders or groups in order to manage related requests much more conveniently. Collections can be shared, reused, and tested with the Collection Runner for automation or data-driven testing. This is the very basic feature necessary for collaboration and systematic API testing.
While Postman interview questions are fairly straightforward, there can be certain tricky questions that may stumble you in the interview.
These questions will challenge your deep understanding of Postman and API testing strategies regarding advanced features for handling complex test scenarios, debugging, and automation.
These Postman interview questions will help you be prepared for any technical interview with a focus on APIs. With Interview Kickstart you can fast track your interview prep, and nail any job interview.
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Postman is a software application developed to design, build, and test APIs. It can be easily customized to business needs and integrated with popular JavaScript framework libraries.
Postman interview questions asked at technical interviews are typically around rest APIs, API testing using Postman, API design, authorization techniques, status codes, and commands.
Yes, Postman interview questions are asked at systems design rounds of software engineering interviews as Postman is a widely used software application to build and design APIs.
Postman is written and developed using Electron – an open-source JavaScript framework that was originally maintained and developed by GitHub.
Some tools used for API testing include – SoapUI, Apigee, Katalon Studio, and Jmeter.
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