Base64Decoder class

Decoder for base64 encoded data.

This decoder accepts both base64 and base64url ("url-safe") encodings.

The encoding is required to be properly padded.

Throws a FormatException if the input is not valid base64 data.

Example:

final base64Decoder = base64.decoder;
const base64Bytes = 'RGFydCBpcyBvcGVuIHNvdXJjZQ==';
final decodedBytes = base64Decoder.convert(base64Bytes);
// decodedBytes: [68, 97, 114, 116, 32, 105, 115, 32, 111, 112, 101, 110,
// 32, 115, 111, 117, 114, 99, 101]

// Print as string using UTF-8 decoder
print(utf8.decode(decodedBytes)); // Dart is open source
Inheritance

Constructors

Base64Decoder()
const

Properties

hashCode → int
The hash code for this object.
read-onlyinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

Methods

bind(Stream<String> stream) → Stream<List<int>>
Transforms the provided stream.
inherited
cast<RS, RT>() → Converter<RS, RT>
Provides a Converter<RS, RT> view of this stream transformer.
inherited
convert(String input, [int start = 0, int? end]) → Uint8List
Decodes the characters of input from start to end as base64.
override
fuse<TT>(Converter<List<int>, TT> other) → Converter<String, TT>
Fuses this with other.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
startChunkedConversion(Sink<List<int>> sink) → StringConversionSink
Starts a chunked conversion.
override
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited