How to Combine JSON Responses from Multiple API Pages with Python

Discover how to effectively combine JSON responses from multiple API pages using Python. Learn the step-by-step process to achieve correctly formatted JSON data. --- This video is based on the question https://stackoverflow.com/q/71804877/ asked by the user 'Kevin Read' ( https://stackoverflow.com/u/650745/ ) and on the answer https://stackoverflow.com/a/71804886/ provided by the user 'BrokenBenchmark' ( https://stackoverflow.com/u/17769815/ ) 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: Attempting to combine JSON responses 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. --- How to Combine JSON Responses from Multiple API Pages with Python When working with APIs, it’s common to encounter scenarios where data is paginated across multiple pages. For developers, this means iterating through each page to retrieve the necessary information. In this guide, we'll explore a common problem: how to combine multiple JSON responses into a single, well-structured output. The Problem In your current implementation, you are able to fetch data from several pages of an API; however, the way you are combining the responses results in improperly formatted JSON. Instead of getting a single list of items, your output is structured as nested lists. Current Output Example Here is what your JSON output currently looks like: [[See Video to Reveal this Text or Code Snippet]] Desired Output Example Your goal is to achieve a flattened structure like this: [[See Video to Reveal this Text or Code Snippet]] The Solution The solution to this issue lies in how you append data to your listings list. Let’s break it down step by step. Step 1: Understanding the Append vs Extend Methods In Python, when you want to add elements from one list to another, you typically have two options: append() and extend(). The main difference between the two is: append(): This method adds the entire list as a single element. Hence, if you append a list to another list, you end up with a nested list. extend(): This method takes an iterable (like a list) and adds its individual elements to the end of the list. This is the method you want to use in this case! Step 2: Implementing the Change In your code, you will modify the line where you accumulate the listings from each page. Here’s the change you need to make: Current Line [[See Video to Reveal this Text or Code Snippet]] Updated Line [[See Video to Reveal this Text or Code Snippet]] By using extend(), you are adding the elements of newPlayerData directly to playerdata["listings"], achieving the desired flattened structure. Step 3: Full Revised Function Here’s the complete function with the corrected line: [[See Video to Reveal this Text or Code Snippet]] Conclusion By using extend() instead of append(), you can effectively combine the listings from multiple pages into a single flat list. This small change will lead to your JSON output being formatted correctly, making subsequent data handling simpler and more efficient. Now you're equipped to handle multi-page responses from APIs, simplifying your data management tasks. Happy coding!