Transform Rules

关于

Transform Rules is a Rust-based library and command-line interface designed for robust data transformation. It enables users to map and convert CSV and JSON input data into new JSON structures by defining a set of YAML rules. The tool supports advanced features such as expressions for string, numeric, and date operations, logical comparisons, regex matching, and array lookups. Beyond data manipulation, it offers static validation for rule files and can generate Data Transfer Objects (DTOs) for various programming languages, making it a versatile tool for developers working with data pipelines and schema enforcement.

主要功能

• Rule-based mapping from CSV/JSON to JSON with YAML definitions
• Rich expression language including string, numeric, date, and logical operations
• Context injection for external reference data and array lookups
• Static validation for rule files and DTO generation for multiple languages (Rust, TypeScript, Python, Go, Java, Kotlin, Swift)
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• CLI and library support with flexible input/output options, including NDJSON and error formatting

使用案例

• Applying complex data transformations, validations, and lookups for data integration or API preparation
• Converting diverse input data formats (CSV, JSON) into a standardized JSON structure
• Generating Data Transfer Objects (DTOs) in various programming languages directly from transformation rules