JSON Patch and diff implementation based on RFC6902 with advanced patch algebra operations.
Jiff is a JavaScript library that implements JSON Patch (RFC6902), providing tools to compute differences between JSON objects and apply patches to transform them. It solves the problem of efficiently synchronizing and updating JSON data across different systems or versions. The library also includes experimental features for patch algebra, such as inversion, commutation, and rebasing.
Developers working with JSON data who need to implement change tracking, synchronization, or patch-based updates in their applications, such as those building collaborative editing tools or real-time data sync systems.
Jiff offers a robust, standards-compliant implementation of JSON Patch with added experimental operations for advanced use cases, making it a versatile choice for complex JSON transformation needs beyond basic diff and patch.
JSON Patch and diff based on rfc6902
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Fully implements the JSON Patch standard, ensuring interoperability with other systems that follow RFC6902, as stated in the README.
Generates diffs between JSON objects to produce patches and can create inverse patches for undo operations when patches include test operations, enabling reliable change tracking.
Applies patches atomically on a cloned document, so failures don't corrupt the original data, ensuring consistency as described in the patch API.
Supports patch contexts for smarter array patching when indices change, though it requires setup with custom makeContext and findContext functions from jiff/lib/context.
The diff algorithm only generates 'add', 'remove', and 'replace' operations, missing 'move' and 'copy', which can lead to less efficient patches, as admitted in the README.
Patches must include test operations and avoid copy operations to be invertible, limiting undo functionality in some cases and adding complexity for full reversibility.
Advanced APIs like commutation and rebasing are labeled as highly experimental with signatures that may change, making them risky for production use.