Compression.deflate
Creates a flow that deflate-compresses a stream of ByteStrings.
Signature
Compression.deflateCompression.deflate Compression.deflateCompression.deflate Compression.deflateCompression.deflate
Description
Creates a flow that deflate-compresses a stream of ByteStrings. Note that the compressor will SYNC_FLUSH after every ByteStringByteString so that it is guaranteed that every ByteStringByteString coming out of the flow can be fully decompressed without waiting for additional data. This may come at a compression performance cost for very small chunks.
Use the overload method with parameters to control the compression level and compatibility with GZip.
Since 1.3.0, an overload with an additional autoFlush parameter is also available. If autoFlush is true (the default for the other overloads), the compressor flushes after every single element in the stream. If it is false, the compressor only emits output when the compression algorithm produces it, which can improve the compression ratio for small chunks, but an emitted ByteString may not be fully decompressible until more data arrives.
Reactive Streams semantics
emits when the compression algorithm produces output for the received ByteString
backpressures when downstream backpressures
completes when upstream completes (may emit finishing bytes in an extra ByteString )