A lightweight utility for Node.js projects that accumulates items into fixed-size batches per key, preserving insertion order within each key. Streams items directly into their respective batches at runtime, eliminating the overhead of post-processing 1D arrays into chunks. It abstracts key-based batch management.

A lightweight utility for Node.js projects that accumulates items into fixed-size batches (number-of-items wise), preserving insertion order. It abstracts batch management, allowing users to focus on application logic. Ideal for delayed processing tasks such as bulk write/publish operations to kafka, databases, blob storage, etc.

A lightweight utility for Node.js projects that accumulates items into fixed-size batches per key, preserving insertion order within each key. Streams items directly into their respective batches at runtime, eliminating the overhead of post-processing 1D arrays into chunks. It abstracts key-based batch management.