bufbuild/protoc-gen-validateArchived

Features

• Validation Logic Generators - Defines semantic constraints in Protobuf schemas to automatically generate code that ensures incoming messages are valid and consistent.
• Validation Plugins - Provides a protoc plugin that generates code to enforce semantic constraints and data validation rules for messages.
• Strict Schema Enforcers - Sets strict rules for strings, numbers, and collections to prevent malformed data from entering a system via APIs.
• Message Validators - Generates consistent validation logic across multiple programming languages based on shared schema definitions.
• Distributed Data Integrity - Ensures messages exchanged between microservices adhere to required formats and value ranges through generated validators.
• Cross-Language Message Classes - Generates language-specific message classes with integrated validation to ensure consistency across different programming environments.
• Protobuf Code Generators - Functions as a protoc plugin to generate language-specific validation source code from Protocol Buffer schemas.
• Polyglot API Validation - Enforces the same data validation rules across multiple programming languages using a single shared Protocol Buffer definition.
• Enum Membership Validators - Ensures enum fields match specific constants, exist within the enum descriptor, or belong to a specified list.
• Recursive Hierarchy Validation - Performs recursive validation on message fields to ensure required content is present or skipped throughout the hierarchy.
• Polyglot Validator Mappings - Maps shared schema constraints to different implementation patterns across multiple target programming languages.
• Byte Sequence Validations - Validates byte sequences using length limits, patterns, prefix and suffix matching, or network address formats.
• Collection Constraints - Constrains the number of elements in repeated fields and enforces rules on individual items or keys.
• Data Type Validation - Enforces constraints on specialized data types such as timestamps, durations, and scalar value wrappers.
• Recursive Object Validation - Implements depth-first traversal of nested message fields to enforce constraints across the entire data hierarchy.
• Data Validation Schemas - Implements a system for defining numeric, string, and collection constraints within schemas to ensure data consistency.
• Constraint Injection - Injects validation rules into generated data accessors by parsing semantic metadata from input descriptor files.
• Custom Option Definitions - Uses Protocol Buffer custom options to embed semantic validation constraints directly within message definitions.
• Range Constraints - Restricts numeric fields using exact constants, range inequalities, or lists of permitted and denied values.
• Predicate-Based Validations - Evaluates field values against a set of predefined logical predicates including range checks and regular expressions.
• Union Field Requirements - Ensures that at least one field within a union is set to a value.
• String Format Validators - Validates strings using length limits, regular expressions, and standard formats like emails and IP addresses.

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