@rljson/hash

@rljson/hash is a lightweight package designed to traverse JSON data structures and add unique hash identifiers to all objects within them.

Motivation

Hashing nested JSON objects makes sense for several key reasons:

• Change Detection: By generating a unique hash for each object, you can easily detect changes in complex data structures without manually comparing all fields.
• Efficient Synchronization: Hashes allow systems to sync only modified or new data, reducing bandwidth and improving performance.
• Cache Management: Hashes act as unique keys for caching, enabling quick retrieval and ensuring data consistency.
• Data Integrity: Hashes verify that nested objects remain unaltered, adding an extra layer of security and reliability.
• Simplified Tracking: In complex systems, hashes provide a consistent way to identify and track objects, even across distributed environments.

Features

• Recursive Processing: Add hashes to nested JSON objects.
• SHA256 Uses SHA256 algorithm for hashing.
• Hash truncation Specify the length of the added hashes.
• Non-Intrusive: If desired, add hashes without altering existing data.
• Floating points: Assign same hashes to similar floating point numbers

Example

src/example.ts