Скачать или смотреть Accessing Names of Arrays in JSON using JsonSlurper in Groovy

Learn how to effectively read and manipulate array names in JSON data using `JsonSlurper` in Groovy. Follow this guide for clear examples and solutions!
---
This video is based on the question https://stackoverflow.com/q/69045260/ asked by the user 'Eric C.' ( https://stackoverflow.com/u/9485854/ ) and on the answer https://stackoverflow.com/a/69050751/ provided by the user 'tim_yates' ( https://stackoverflow.com/u/6509/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Read Array name using JsonSlurper

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Accessing Names of Arrays in JSON using JsonSlurper in Groovy

If you're new to Groovy and looking to parse JSON data, you may find yourself wondering how to efficiently access names of arrays within your JSON structure. In this guide, we'll explore a common challenge faced by beginners and provide a detailed solution for accessing the arrays named Array1 and Array2 from the sample JSON data given.

Understanding the JSON Structure

Here's the JSON we'll be working with:

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

This JSON structure contains an Order object with two arrays, Array1 and Array2. Our goal is to filter these arrays based on the Valid property and return only valid entries.

Steps to Access and Filter the Arrays

Step 1: Parsing the JSON Data

To begin, we need to parse the JSON data using JsonSlurper in Groovy. Here’s how you can do that:

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

This line of code reads and parses the JSON from a given reader source.

Step 2: Filtering the Arrays Based on Valid Entries

Next, you want to filter the arrays to include only valid entries. You can leverage Groovy's findAll method, but it's essential to do this in a structured way. Here’s a clear approach:

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

This code structure allows filtering of the list while still maintaining the integrity of the other properties in Order.

Step 3: Building the Final JSON Structure

After filtering, you might want to define a specific JSON model for your output. Here’s how you can do that effectively:

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

The *: operator is used to inject the contents of the filtered.Order into your new model, keeping everything organized and in its place.

Putting It All Together

Here’s the complete Groovy script addressing the problem:

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

By running this script, you'll effectively filter out Array1 and Array2 to contain only valid items while retaining the necessary structure of the JSON.

Conclusion

Navigating JSON data in Groovy might seem challenging at first, especially when filtering and accessing specific elements. By utilizing JsonSlurper effectively, it's possible to create robust parsing and filtering solutions. With the examples provided here, you should be well equipped to manage arrays in your JSON data like a pro! If you have further questions or need more examples, feel free to explore and ask!