MultipartFile class

A file to be uploaded as part of a MultipartRequest. This doesn't need to correspond to a physical file.

MultipartFile is based on stream, and a stream can be read only once, so the same MultipartFile can't be read multiple times.

Constructors

MultipartFile(Stream<List<int>> stream, int length, {String? filename, MediaType? contentType, Map<String, List<String>>? headers}): Creates a new MultipartFile from a chunked Stream of bytes. The length of the file in bytes must be known in advance. If it's not, read the data from the stream and use MultipartFile.fromBytes instead.
MultipartFile.fromBytes(List<int> value, {String? filename, MediaType? contentType, Map<String, List<String>>? headers}): Creates a new MultipartFile from a byte array.
factory
MultipartFile.fromString(String value, {String? filename, MediaType? contentType, Map<String, List<String>>? headers}): Creates a new MultipartFile from a string.
factory

contentType → MediaType?: The content-type of the file. Defaults to application/octet-stream.
final
filename → String?: The basename of the file. May be null.
final
hashCode → int: The hash code for this object.
read-onlyinherited
headers → Map<String, List<String>>?: The additional headers the file has. May be null.
final
isFinalized → bool: Whether finalize has been called.
read-only
length → int: The size of the file in bytes. This must be known in advance, even if this file is created from a ByteStream.
final
runtimeType → Type: A representation of the runtime type of the object.
read-onlyinherited

finalize() → Stream<List<int>>
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
inherited

fromFile(String filePath, {String? filename, MediaType? contentType, Map<String, List<String>>? headers}) → Future<MultipartFile>: Creates a new MultipartFile from a path to a file on disk.
fromFileSync(String filePath, {String? filename, MediaType? contentType, Map<String, List<String>>? headers}) → MultipartFile