Скачать или смотреть How to Extract and Assign JSON Data to Project Variables in SoapUI for Token Management

Learn how to efficiently extract a JSON element and assign it to a project variable in SoapUI to manage authentication tokens and other reusable data.
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Efficiently Extracting and Assigning JSON Data to Project Variables in SoapUI

When working with APIs, especially in testing environments like SoapUI, it’s common to face situations where you need to extract specific pieces of information from JSON responses. This is particularly useful for scenarios such as managing authentication tokens which are vital for subsequent API calls. In this guide, we will guide you through the process of extracting a child node from a JSON response and assigning it to a project variable every time a request is made in SoapUI.

The Challenge: Assigning Values from JSON Responses

If you’re new to SoapUI and API testing, you may find yourself in a situation where you need to extract data from a JSON response. For instance, let’s say you retrieve an authentication token from a RESTful service and want to store it for future use. Here’s what you might be dealing with:

A REST request that returns a JSON response.

The need to extract specific data (like an authentication token) from that JSON response.

The possibility of using that extracted data in subsequent requests.

The Solution: Using Property Transfer

Fortunately, SoapUI provides an easy way to handle this situation using the Property Transfer functionality. Here's a step-by-step guide on how to achieve this:

Step 1: Add a Property Transfer Step

Open your SoapUI project: Navigate to the project you want to work with.

Add a Property Transfer step: In your test case, right-click and select Add Step, then choose Property Transfer.

Configure Property Transfer: In the Property Transfer step, you will configure the source (the response of your REST request) and the target (the project variable where you want to store the value).

Step 2: Selecting the Source Response

Select the REST request: Choose the REST request that returns the JSON response. This will serve as your source.

Target Property: Decide on the project variable where you want to store the extracted value.

Step 3: Using Xquery to Access the Desired Child Node

You need to utilize the Xquery language to pinpoint the exact child node you want to extract from the JSON structure. Here’s an example JSON response you might be working with:

[[See Video to Reveal this Text or Code Snippet]]

In this example, if you want to extract the value of menuitem, you would use an Xquery like this:

[[See Video to Reveal this Text or Code Snippet]]

Step 4: Assigning the Extracted Value to the Project Variable

Now that you've configured your Property Transfer and correctly identified the child node, the last step is to ensure that the extracted data is assigned to the designated project variable. Once this step is executed, the project variable will hold the authentication token (or any other necessary value) for later use in subsequent requests.

Conclusion

By following these straightforward steps, you can effectively extract data from a JSON response and manage it within your SoapUI project using property transfers. This not only streamlines your testing but also enhances the reusability of critical information like authentication tokens in your API interactions. Next time you face a similar challenge in SoapUI, remember this method to simplify your workflow and improve your productivity. Happy testing!