ChunkTransformer<T> class

A StreamTransformer that splits incoming lists into smaller fixed-size chunks.

This transformer takes a stream of lists and emits sublists of at most chunkSize elements. Useful for processing or transmitting large lists in manageable parts, for example, when sending data over a network or writing to files in chunks.

The last chunk may be smaller than chunkSize if there are not enough remaining elements.

Example

final dataStream = Stream.value(List.generate(10000, (i) => i));
final chunkedStream = dataStream.transform(const ChunkTransformer<int>(chunkSize: 1024));
await for (final chunk in chunkedStream) {
  print('Chunk with ${chunk.length} items');
}

See also:

• StreamTransformer, which is the base class for all stream transformations.
• Stream.chunked (extension in package:collection), which splits iterables into chunks.