readString method
Reads the content of this subpart as a string.
The optional encoding
parameter can be used to override the encoding
used. By default, the content-type
header of this part will be used,
with a fallback to the content-type
of the surrounding request and
another fallback to utf8 if everything else fails.
Implementation
Future<String> readString([Encoding? encoding]) {
encoding ??= _encoding ?? _originalRequest.encoding ?? utf8;
return encoding.decodeStream(this);
}