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Postman: Visualize the Extensive JSON Responses

Have you ever found yourself overwhelmed by significant amount of data in an API response? As QA, we often deal with extensive JSON responses that can be challenging to verify. Manually sifting through this information to verify specific values can be time-consuming and prone to error. Fortunately, Postman's visualize feature can transform your testing experience by turning those complex responses into clear & manageable tables, allowing you to focus on what really matters.



Benefits of Visualizing API Responses in Postman

Using the Visualize feature offers several advantages that can significantly enhance your workflow:

1. Focus on Specific Values

With the ability to visualize specific values, you can hone on the data points that are most important for your testing. Instead of scanning through lengthy JSON responses, you can create a tailored view that highlights the exact information you need to validate. This targeted approach not only saves time but also increases the accuracy of your testing efforts.

2. Easier Validation

Visualizing the API response makes it much easier to validate data. When the information is presented in a structured format, it’s simpler to check for completeness and correctness. You can quickly spot missing or incorrect values, ensuring that nothing is overlooked during your testing process. This streamlined validation helps improve the overall quality of your API.

3. Simplified Documentation

Taking screenshots of your findings is a common practice in QA. When you visualize the API response, capturing a screenshot becomes much easier and more effective. A well-structured table provides clear evidence of your validation efforts, making it simple to share with your team or stakeholders. This clarity not only aids in documentation but also enhances communication regarding the testing process.

How to Use the Visualize Feature in Postman

Getting started with the Visualize feature in Postman is straightforward:

  1. Send Your Request: After crafting your API request, click the Send button to receive the response.

  2. Access the Visualize Tab: Click on the Visualize tab next to the Body tab in the response section.

  3. Ask Postbot to Visualize: To make it easier, just click Visualize Response and the visualization type you want to generate or write specific prompt for it.



  4. Customize your Post-response Script: The default script generated by Postbot may not display all the data you need, which is why it's important to customize the script to suit your specific requirements. 

    To customize, actually you don't have to understand high programming skill, the things you should understand is the structure of the data. For example, if the API response follows this structure:
    {
       "data": {
           "name": "ubi"
       }
    }
    then you need to map the data like this:
    <td>{{data.name}}</td>
    Postbot’s prompting feature might also help generate it (though I haven’t tried this before).

  5. View Your Table: Once you’ve set up your script, hit again the send button and the data will be displayed in a clean table format, allowing for easy review and validation.

And that’s it! 🚀 Postman’s Visualize feature makes API testing way easier. Give it a try and see how it helps your workflow😉


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