msgpack
MessagePack is an extremely efficient object serialization library. It's like JSON, but very fast and small.
Top Related Projects
Apache Thrift
Protocol Buffers - Google's data interchange format
FlatBuffers: Memory Efficient Serialization Library
Cap'n Proto serialization/RPC system - core tools and C++ library
Apache Avro is a data serialization system.
Main Portal page for the Jackson project
Quick Overview
MessagePack is a binary serialization format that is designed to be compact and fast. It allows you to exchange data between different languages and platforms efficiently, with a smaller footprint than JSON and faster serialization/deserialization speeds.
Pros
- Compact binary format, resulting in smaller data size compared to JSON
- Fast serialization and deserialization
- Cross-language support with implementations in many programming languages
- Schema-less design, allowing for flexible data structures
Cons
- Not human-readable like JSON or YAML
- Less widespread adoption compared to JSON
- Limited built-in type support compared to some other serialization formats
- Potential compatibility issues between different language implementations
Code Examples
- Serializing data:
import msgpack
data = {"name": "John Doe", "age": 30, "city": "New York"}
packed = msgpack.packb(data)
print(packed) # Output: binary data
- Deserializing data:
import msgpack
packed = b'\x83\xa4name\xa8John Doe\xa3age\x1e\xa4city\xa8New York'
unpacked = msgpack.unpackb(packed)
print(unpacked) # Output: {'name': 'John Doe', 'age': 30, 'city': 'New York'}
- Working with streams:
import msgpack
# Packing to a file
with open('data.msgpack', 'wb') as f:
packer = msgpack.Packer()
f.write(packer.pack({"foo": "bar"}))
f.write(packer.pack([1, 2, 3]))
# Unpacking from a file
with open('data.msgpack', 'rb') as f:
unpacker = msgpack.Unpacker(f)
for unpacked in unpacker:
print(unpacked)
Getting Started
To use MessagePack in your Python project:
-
Install the library:
pip install msgpack
-
Import and use in your code:
import msgpack # Serialize data data = {"hello": "world"} packed = msgpack.packb(data) # Deserialize data unpacked = msgpack.unpackb(packed) print(unpacked) # Output: {'hello': 'world'}
For other languages, check the official MessagePack website for language-specific installation and usage instructions.
Competitor Comparisons
Apache Thrift
Pros of Thrift
- Supports multiple programming languages and platforms
- Provides a complete RPC framework with built-in service definitions
- Offers more advanced data types and structures
Cons of Thrift
- More complex setup and configuration
- Larger library size and potential performance overhead
- Steeper learning curve for developers
Code Comparison
MessagePack serialization:
import msgpack
data = {"name": "John", "age": 30}
packed = msgpack.packb(data)
unpacked = msgpack.unpackb(packed)
Thrift serialization:
from thrift.protocol import TBinaryProtocol
from thrift.transport import TTransport
person = Person(name="John", age=30)
transport = TTransport.TMemoryBuffer()
protocol = TBinaryProtocol.TBinaryProtocol(transport)
person.write(protocol)
serialized = transport.getvalue()
MessagePack focuses on simple, fast serialization of data structures, while Thrift provides a more comprehensive framework for defining services and data types. MessagePack is generally easier to use and has a smaller footprint, making it suitable for lightweight applications. Thrift, on the other hand, offers more features and language support, making it a better choice for complex, multi-language projects that require robust RPC capabilities.
Protocol Buffers - Google's data interchange format
Pros of Protocol Buffers
- Strongly typed schema definition
- Built-in support for versioning and backward compatibility
- Extensive language support and ecosystem
Cons of Protocol Buffers
- More complex setup and usage compared to MessagePack
- Larger message size due to field identifiers and type information
Code Comparison
MessagePack:
import msgpack
data = {"name": "John", "age": 30}
packed = msgpack.packb(data)
unpacked = msgpack.unpackb(packed)
Protocol Buffers:
import person_pb2
person = person_pb2.Person()
person.name = "John"
person.age = 30
serialized = person.SerializeToString()
deserialized = person_pb2.Person().FromString(serialized)
MessagePack offers a simpler, more lightweight approach to serialization, while Protocol Buffers provides a more structured and robust solution with additional features. MessagePack is easier to use for simple data structures and requires less setup, but Protocol Buffers excels in scenarios where strict typing, versioning, and extensive language support are crucial. The choice between the two depends on the specific requirements of your project, such as data complexity, performance needs, and long-term maintainability.
FlatBuffers: Memory Efficient Serialization Library
Pros of Flatbuffers
- Zero-copy deserialization, allowing direct access to data without parsing
- Supports schema evolution, enabling backward and forward compatibility
- Offers strong typing and compile-time type safety
Cons of Flatbuffers
- Larger message size compared to MessagePack's compact format
- More complex setup and usage, requiring schema definitions
- Slower serialization process due to its focus on fast deserialization
Code Comparison
MessagePack:
import msgpack
data = {"name": "John", "age": 30}
packed = msgpack.packb(data)
unpacked = msgpack.unpackb(packed)
Flatbuffers:
import flatbuffers
builder = flatbuffers.Builder(1024)
name = builder.CreateString("John")
Person.Start(builder)
Person.AddName(builder, name)
Person.AddAge(builder, 30)
person = Person.End(builder)
builder.Finish(person)
buf = builder.Output()
MessagePack offers a simpler API for serialization and deserialization, while Flatbuffers requires more setup but provides direct access to data without parsing. MessagePack is more suitable for scenarios prioritizing simplicity and compact message size, whereas Flatbuffers excels in applications requiring fast deserialization and schema evolution.
Cap'n Proto serialization/RPC system - core tools and C++ library
Pros of Cap'n Proto
- Faster serialization and deserialization due to zero-copy design
- Built-in support for schema evolution and backwards compatibility
- More compact binary representation for complex data structures
Cons of Cap'n Proto
- Larger library size and more complex implementation
- Less widespread adoption compared to MessagePack
- Steeper learning curve for developers new to the protocol
Code Comparison
MessagePack:
import msgpack
data = {"name": "John", "age": 30}
packed = msgpack.packb(data)
unpacked = msgpack.unpackb(packed)
Cap'n Proto:
import capnp
import example_capnp
person = example_capnp.Person.new_message()
person.name = "John"
person.age = 30
packed = person.to_bytes()
unpacked = example_capnp.Person.from_bytes(packed)
Summary
MessagePack is a simpler, more widely adopted serialization format with a smaller footprint. It's easier to use for basic data structures and has broader language support. Cap'n Proto offers better performance for complex data structures, built-in schema evolution, and a more compact binary representation. However, it comes with a steeper learning curve and larger library size. The choice between the two depends on specific project requirements, such as performance needs, data complexity, and development team expertise.
Apache Avro is a data serialization system.
Pros of Avro
- Schema evolution support, allowing for easier data versioning and compatibility
- Rich data types, including complex types like records, enums, and arrays
- Built-in support for data compression and serialization
Cons of Avro
- More complex setup and configuration compared to MessagePack
- Larger message size due to schema overhead
- Steeper learning curve for developers new to the format
Code Comparison
MessagePack:
import msgpack
data = {"name": "John", "age": 30}
packed = msgpack.packb(data)
unpacked = msgpack.unpackb(packed)
Avro:
import avro.schema
from avro.datafile import DataFileWriter, DataFileReader
from avro.io import DatumWriter, DatumReader
schema = avro.schema.parse(open("user.avsc", "rb").read())
writer = DataFileWriter(open("users.avro", "wb"), DatumWriter(), schema)
writer.append({"name": "John", "age": 30})
writer.close()
MessagePack offers a simpler API for quick serialization and deserialization, while Avro requires more setup but provides stronger typing and schema support. MessagePack is generally faster and produces smaller output, but Avro excels in scenarios requiring schema evolution and complex data structures.
Main Portal page for the Jackson project
Pros of Jackson
- More comprehensive JSON processing library with support for various data formats
- Extensive customization options and annotations for fine-grained control
- Larger community and ecosystem with better documentation and third-party extensions
Cons of Jackson
- Larger library size and potentially higher memory footprint
- Slightly slower serialization/deserialization compared to MessagePack
- Steeper learning curve due to more features and configuration options
Code Comparison
MessagePack:
MessagePack msgpack = new MessagePack();
byte[] raw = msgpack.write(someObject);
SomeObject deserialized = msgpack.read(raw, SomeObject.class);
Jackson:
ObjectMapper mapper = new ObjectMapper();
String json = mapper.writeValueAsString(someObject);
SomeObject deserialized = mapper.readValue(json, SomeObject.class);
Summary
Jackson is a more feature-rich JSON processing library with broader format support and customization options. MessagePack focuses on efficient binary serialization, offering smaller output size and faster processing. Jackson is better suited for complex JSON handling and integration with various Java frameworks, while MessagePack excels in scenarios requiring compact data representation and high-performance serialization.
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MessagePack
MessagePack is an efficient binary serialization format. It's like JSON. but fast and small.
This repository manages specification of MessagePack format. See Spec for the specification.
Implementation projects have each own repository. See msgpack.org website to find implementations and their documents.
If you'd like to show your msgpack implementation to the msgpack.org website, please follow the website document.
Top Related Projects
Apache Thrift
Protocol Buffers - Google's data interchange format
FlatBuffers: Memory Efficient Serialization Library
Cap'n Proto serialization/RPC system - core tools and C++ library
Apache Avro is a data serialization system.
Main Portal page for the Jackson project
Convert
designs to code with AI
Introducing Visual Copilot: A new AI model to turn Figma designs to high quality code using your components.
Try Visual Copilot