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Step-by-Step Guide to Using Postman API Tool


Testing an API is very important as it allows you to discover any errors and bugs in it at a very early stage. However, this task is not that easy to do if done manually. Luckily there are many API testing tools in the market like Postman that can make this task a child’s play and help you test your application in just a few seconds.


Postman is a great API testing tool that can easily test a Rest API in just a few seconds. It is a fabulous tool and comes with lots of unique and amazing features that make the work of a tester a child’s play. So, if you are an application tester then you master this tool to make your work easier. You can do this by enrolling in a Postman Online Training course. However, if you just want to learn the basics of the software then here’s a guide that you can follow to do this.

How You Can Download/Install Postman App on Your System?

Following are the steps that you can follow to download/install the Postman app on your computer system:

  1. Navigate to the website of Postman and hit the “Sign-in “button to log in to your account.
  2. Next, navigate to the product download page and choose the OS of your machine to download the app.
  3. Press “Download” to start downloading the software.
  4. Click “Run” to launch the Postman installation wizard.
  5. Now hit the “Sign-in” button to log in to your account.
  6. Select the workspace tools that you wish to use and tap “Save My Preferences” to save your preferences and finish the installation process.

How to Create a New Workspace?

Following are the steps that you can follow to create a new workspace:

  1. Open the software and tap on the “Workspaces” tab.
  2. Now tap on the “New Workspace” button.
  3. Give a name to your new workspace.
  4. Select a visibility option as per your choice under the “Visibility “section.
  5. Hit the “Create Workspace” option to complete the process.

How to Send Your First GET Request?

Following are the steps that you can follow to send your first “GET” request:

  1. Open the software and navigate to the “New” button and tap on it.
  2. Now go to the “Request” button and give your request a name.
  3. Tap” Create Collection” and create a collection.
  4. Give a name to your collection and hit the “Checkmark” button to continue.
  5. Tap “Save” to save your collection.
  6. Now select the “GET” request type.
  7. Enter your URL in the Url field and hit “Send.”
  8. You will see this message on your computer screen “200 OK.” This means your request has been successful.

How to Send Your First Post Request?

Following are the steps that you can follow to create your first “POST” request:

  1. Tap the “+” button to open a new Postman tab.
  2. Select the “POST” request type.
  3. Enter your URL in the URL field.
  4. Navigate to the “Body” tab.
  5. Select “Raw” and then select the “JSON” option using the drop-down menu.
  6. Next, type the following text: {Hi, I am learning to test APIs}.
  7. Hit “send” to create a “POST” request.

How to Use Scratchpad Feature?

Following are the steps that you can follow to use Scratchpad:

  1. Open the software
  2. Hit the gear icon which is present near the header toolbar.
  3. Finally, select the “ScratchPad” option to access the “ScratchPad” feature.

How Can You Sync Your Data Between Computers?

Following are the steps that you can follow to sync your data between computers:

  1. Install and sign in to the app using your id and password on all the devices.
  2. Now your data will be synchronized between your devices.


  1. Open your web browser and visit the Postman website
  2. Click on the “Sign-in” option and enter your id and password to log in to your account.
  3. Once you do this you will be able to access all your data on all your devices.


Developing and delivering a robust and reliable API application or services is not easy. You must start testing it from the beginning of the software development process to ensure that it is safe, doesn’t contain any bugs, and meets all the needs of the client. So, if you are a developer/ API tester then do master this phenomenal API testing tool. You can easily do this by watching Postman tutorials on YouTube or by enrolling in the online training program of the Postman Training Institute in Noida. This will not only allow you to test API applications quickly but would also make your work a lot easier.

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