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Overview Expressions

DTX Expressions allow dynamic data manipulation and configuration within provider pipelines. They enable flexible control over prompts, API requests, and response transformations.

Why Use Expressions?​

  • Dynamically construct requests or prompts
  • Transform responses before evaluation
  • Handle environment-specific logic
  • Reduce duplication and enable template reuse

Expressions make configuration files smarter and workflows more adaptable.

Expression Engines Used​

Jinja​

A powerful templating language for dynamic YAML, JSON, and HTTP payload generation. Commonly used to inject variables, loop through lists, and apply conditional logic.

JQ​

A JSON processor used to filter, extract, and transform JSON data. Perfect for reshaping API responses or focusing on relevant evaluation fields.