messagepack 0.2.1

Streaming API implementation of MessagePack binary serialization format - msgpack.

example/example.dart

import 'package:messagepack/messagepack.dart';

void simple() {
  final p = Packer();
  p.packInt(1);
  p.packInt(2);
  final bytes = p.takeBytes(); //Uint8List
  print(bytes);

  final u = Unpacker(bytes);
  final n1 = u.unpackInt();
  final n2 = u.unpackInt();
  print('unpacked n1=$n1 n2=$n2');
}

void differentTypesSimple() {
  final p = Packer();
  p.packInt(1);
  p.packBool(true);
  final bytes = p.takeBytes(); //Uint8List
  print(bytes);

  final u = Unpacker(bytes);
  print(u.unpackInt());
  print(u.unpackBool());
}

void iterableAndMap() {
  final list = ['i1', 'i2'];
  final map = {'k1': 11, 'k2': 22};
  final p = Packer();
  p.packListLength(list.length);
  list.forEach(p.packString);
  p.packMapLength(map.length);
  map.forEach((key, v) {
    p.packString(key);
    p.packInt(v);
  });
  final bytes = p.takeBytes();

  final u = Unpacker(bytes);
  final listLength = u.unpackListLength();
  for (int i = 0; i < listLength; i++) {
    print(u.unpackString());
  }
  final mapLength = u.unpackMapLength();
  for (int i = 0; i < mapLength; i++) {
    print(u.unpackString());
    print(u.unpackInt());
  }
}

void differentTypesComplex() {
  final p = Packer()
    ..packInt(99)
    ..packBool(true)
    ..packString('hi')
    ..packNull()
    ..packString(null)
    ..packBinary(<int>[104, 105]) // hi codes
    ..packListLength(2) // pack 2 elements list ['elem1',3.14]
    ..packString('elem1')
    ..packDouble(3.14)
    ..packString('continue to pack other elements')
    ..packMapLength(2) //map {'key1':false, 'key2',3.14}
    ..packString('key1') //pack key1
    ..packBool(false) //pack value1
    ..packString('key12') //pack key1
    ..packDouble(3.13); //pack value1

  final bytes = p.takeBytes();
  final u = Unpacker(bytes);
  //Unpack the same sequential/streaming way
  u.unpackInt();
  //....
}