This library allows you to easily stream CSV data in and out. You can
do so using both “plain” record-based (with optional header support)
or name-based (header required to determine ordering)
encoding/decoding.
All encoding/decoding options are supported, it’s possible to
automatically add on default headers and you can even choose whether
to fail on the first parse error or handle errors on a row-by-row
basis.
Errors with readFile
A common use-case is to stream CSV-encoded data in from a file. You
may be tempted to use readFile from streaming-bytestring to obtain
the file contents, but if you do you’re likely to run into exceptions
such as hGetBufSome: illegal operation (handle is closed).
The recommended solution is to use the streaming-with package for
the IO aspects. You can then write something like: