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Legacy Protobuf Validation Tool (protoc-gen-validate)
This repository contains `protoc-gen-validate`, a Protocol Buffer compiler plugin that generates rigorous message validation code. **Note: This project is now superseded by `bufbuild/protovalidate`. New projects should use `protovalidate` instead.**
Go
Added on 2025年6月6日3,952
Stars595
ForksGo
LanguageProject Introduction
Summary
`protoc-gen-validate` was a compiler plugin for `protoc` that enabled developers to add validation rules to their Protocol Buffer message definitions. It generated validation code in supported languages to ensure data integrity.
Problem Solved
Protocol Buffers provide a schema for data serialization but lack built-in mechanisms for data validation. `protoc-gen-validate` addressed this by allowing developers to embed validation rules within the `.proto` schema and automatically generate validation logic.
Core Features
Declarative Validation Rules
Define clear and declarative validation rules directly within your `.proto` schema files using a rich rule set.
Multi-Language Code Generation
Automatically generate validation code for your Protobuf messages in various languages based on the rules defined in your schema.
Generated Validation Methods
Provides generated methods to easily check if a Protobuf message conforms to its defined validation constraints.
Tech Stack
Go
Protocol Buffers
Protoc Compiler
various target languages (e.g., Go, Java, C++, Python)
Use Cases
`protoc-gen-validate` was used in scenarios requiring robust data validation for Protocol Buffer messages. **New implementations should use `bufbuild/protovalidate`.**
API Input Validation
Details
Ensuring that incoming requests or messages received by a service conform to expected formats and constraints defined in the `.proto` schema.
User Value
Prevents processing invalid data, improves service reliability and security.
Data Persistence/Messaging Validation
Details
Validating data structure and content when serializing or deserializing data using Protocol Buffers, such as storing data in a database or queue.
User Value
Maintains data integrity across different parts of a system.
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