Utilities for working with chunked streams, such as Stream<List<int>>
.
Disclaimer: This is not an officially supported Google product.
A chunked stream is a stream where the data arrives in chunks. The most
common example is a byte stream, which conventionally has the type
Stream<List<int>>
. We say a byte stream in chunked because bytes arrives in
chunks, rather than individiually.
A byte stream could technically have the type Stream<int>
, however, this would
be very inefficient, as each byte would be passed as an individual event.
Instead bytes arrives in chunks (List<int>
) and the type of a byte stream
is Stream<List<int>>
.
To make it easy to work with the chunk streams, such as Stream<List<int>>
,
this package provides ChunkedStreamIterator
which allows you to specify how
many elements you want, and buffer unconsumed elements, making it easy to work
with chunked streams one element at the time.
final reader = ChunkedStreamIterator(File('my-file.txt').openRead());
// While the reader has a next byte
while (true) {
var data = await reader.read(1); // read one byte
if (data.length < 0) {
print('End of file reached');
break;
}
print('next byte: ${data[0]}');
}