flutter-implement-json-serialization

Use this checklist to implement manual JSON serialization for a data model. Task Progress: Use this conditional workflow when retrieving and parsing JSON from a network request. Task Progress: - Core Guidelines - Workflow: Implementing a Serializable Model - Workflow: Fetching and Parsing JSON - Examples - Import dart:convert : Utilize Flutter's built-in dart:convert library for manual JSON encoding ( jsonEncode ) and decoding ( jsonDecode ). - Enforce Type Safety : Always cast the dynamic result of jsonDecode() to the expected type, typically Map for objects or List for arrays. - Encapsulate Serialization Logic : Define plain model classes containing properties corresponding to the JSON structure. Implement a fromJson factory constructor and a toJson method within the model. - Handle Background Parsing : If parsing large JSON documents (execution time > 16ms), offload the parsing logic to a separate isolate using Flutter's compute() function to prevent UI jank. - Throw Exceptions on Failure : When handling HTTP responses, throw an exception if the status code is not successful (e.g., not 200 OK or 201 Created).