Protobuf
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Protobuf | protobuf | |
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171 | 18 | |
63,657 | 9,648 | |
1.1% | 1.1% | |
10.0 | 4.6 | |
3 days ago | 7 days ago | |
C++ | JavaScript | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Protobuf
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Reverse Engineering Protobuf Definitions from Compiled Binaries
For at least 4 years protobuf has had decent support for self-describing messages (very similar to avro) as well as reflection
https://github.com/protocolbuffers/protobuf/blob/main/src/go...
Xgooglers trying to make do on the cheap will just create a Union of all their messages and include the message def in a self-describing message pattern. Super-sensitive network I/O can elide the message def (empty buffer) and any for RecordIO clone well file compression takes care of the definition.
Definitely useful to be able to dig out old defs but protobuf maintainers have surprisingly added useful features so you don’t have to.
Bonus points tho for extracting the protobuf defs that e.g. Apple bakes into their binaries.
- Show HN: AuthWin – Authenticator App for Windows
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Create Production-Ready SDKs With gRPC Gateway
gRPC Gateway is a protoc plugin that reads gRPC service definitions and generates a reverse proxy server that translates a RESTful JSON API into gRPC.
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Create Production-Ready SDKs with Goa
To use more recent versions of protoc in future applications, you can download them from the Protobuf repository.
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Roll your own auth with Rust and Protobuf
Use the Protobuf CLI protoc and the plugin protoc-gen-tonic.
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Add extra stuff to a “standard” encoding? Sure, why not
> didn’t find any standard for separating protobuf messages
The fact that protobufs are not self-delimiting is an endless source of frustration, but I know of 2 standards:
- SerializeDelimited* is part of the protobuf library: https://github.com/protocolbuffers/protobuf/blob/main/src/go...
- Riegeli is "a file format for storing a sequence of string records, typically serialized protocol buffers. It supports dense compression, fast decoding, seeking, detection and optional skipping of data corruption, filtering of proto message fields for even faster decoding, and parallel encoding": https://github.com/google/riegeli
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Block YouTube Ads on AppleTV by Decrypting and Stripping Ads from Profobuf
It looks like it is in fact universal. Just glancing at the code here, it looks like the tool searches any arbitrary file for bytes that look like encoded protobuf descriptors, specifically looking for bytes that are plausibly the beginning of a FileDescriptorProto message defined here:
https://github.com/protocolbuffers/protobuf/blob/main/src/go...
This takes advantage of the fact that such descriptors are commonly compiled into programs that use protobuf. The descriptors are usually embedded as constant byte arrays. That said, not all protobuf implementations embed the descriptors and those that do often have an option to inhibit such embedding (at the expense of losing some dynamic introspection features).
- How to learn to use protoc in 21 easily infuriating steps
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What's involved in protobuf encoding?
Not much. You can check the source code in https://github.com/protocolbuffers/protobuf. For example, for serializing a boolean in C#: https://github.com/protocolbuffers/protobuf/blob/main/csharp/src/Google.Protobuf/WritingPrimitives.cs#L165. Strings and objects are a bit more complicated, but it is all about turning the data into its byte representation.
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Trying To Solve The Confusion of Choice Between gRPC vs REST🕵
One of the key feature of gRPC is protobuf .proto file(nothing but just a contract for me between two communicator code components) This file and protobuff compiler is so mature, then it generates a direct client implementation using protoccompiler. ref
protobuf
- Eval("quire".replace(/^/,"re"))(moduleName)
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How we reverse-engineered Google Maps pagination
Google Maps URLs contain the pb parameter contains string-encoded Protobuf. The format is the same as for the data parameter in the browser URL on Google Maps. It contains !-separated values. There are several answers on StackOverflow, gists on GitHub, some blog posts about decoding, and even a kinda official guide on reverse engineering protobuf, but none of this touches pagination.
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Add extra stuff to a “standard” encoding? Sure, why not
Seems like protoduf.js has the exact same methods as Google’s implementations with the same names (encode/decode to not prepend with length, encodeDelimited/decodeDelimited for prepending length). It is hard for me to say they’re adding to the standard when they’re just replicating Google’s libraries.
https://github.com/protobufjs/protobuf.js#toolset
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Question about compressing JSON in multiplayer position updates
If it really is a problem, then another option is to use Protobus or Message Pack for serializing (maybe into base64?).
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Looking for ideas on how to implement serialization and deserialization between C++ and Javascript
I use protocol buffers. protobufjs translates into json.
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GRPC Gateway API Client?
I have tried GRPC gateway generation tools: - PBJS: https://github.com/protobufjs/protobuf.js/
- Protobuf-ES: The Protocol Buffers TypeScript/JavaScript runtime we all deserve
- Did I understand the basic concept of website development with Node Js correctly?
- how can i use protobuf with sveltekit, please?
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is there any startup or famous web app using grpc/grpc-web for their frontend
We use https://github.com/improbable-eng/grpc-web for the server part with https://github.com/protobufjs/protobuf.js on the frontend.
What are some alternatives?
FlatBuffers - FlatBuffers: Memory Efficient Serialization Library
snappy - DEPRECATED - please use https://github.com/Brooooooklyn/snappy. Nodejs bindings to Google's Snappy compression library
SBE - Simple Binary Encoding (SBE) - High Performance Message Codec
pbf - A low-level, lightweight protocol buffers implementation in JavaScript.
MessagePack - MessagePack implementation for C and C++ / msgpack.org[C/C++]
compactr - Schema based serialization made easy
cereal - A C++11 library for serialization
Vicis - Presentation and transformation layer for data output in RESTful APIs.
Apache Parquet - Apache Parquet
TypeScript - TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
Bond - Bond is a cross-platform framework for working with schematized data. It supports cross-language de/serialization and powerful generic mechanisms for efficiently manipulating data. Bond is broadly used at Microsoft in high scale services.
Cap'n Proto - Cap'n Proto serialization/RPC system - core tools and C++ library