Meta interface

[johngeorgewright]

Extending maintainability by passing around a Meta interface instead of declaring each set of parsers separately.

[Copilot]

Pull request overview

This PR introduces a Meta interface to consolidate type parameters, reducing code duplication and improving maintainability. Instead of passing four separate parser type parameters (PayloadParsers, TargetingParsers, QueryParsers, FallThroughTargetingParsers) throughout the codebase, a single Meta interface encapsulates all four.

Key changes:

• Introduced DT.Meta interface with four parser type properties
• Refactored generic type parameters across the codebase to use $ extends DT.Meta
• Simplified type definitions by accessing parser types through the Meta interface (e.g., $['PayloadParsers'])

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/api/src/types/Data.ts	Added Meta and EmptyMeta interfaces; refactored type helper functions to use the new Meta pattern
packages/api/src/types/Payload.ts	Updated Payload and Payloads types to use Meta interface
packages/api/src/types/FallThroughTargeting.ts	Updated Rules type to use Meta interface
packages/api/src/parsers/DataItemRule.ts	Refactored all parser and rule types to use Meta interface instead of separate type parameters
packages/api/src/parsers/DataItemRules.ts	Updated parser function and types to use Meta interface
packages/api/src/parsers/DataItem.ts	Updated DataItem parser and types to use Meta interface
packages/api/src/parsers/DataItemVariablesParser.ts	Refactored to use Meta interface for targeting parsers
packages/api/src/parsers/DataItems.ts	Updated to use Meta interface and added ObjValues helper type
packages/api/src/parsers/TargetingPredicates.ts	Updated to use Meta interface with Pick for required parser types
packages/api/src/Data.ts	Refactored Data class to use Meta interface throughout
packages/api/src/PromisedData.ts	Updated PromisedData class to use Meta interface and implement new IData interface
packages/api/src/IData.ts	Added new interface defining the Data API contract using Meta interface
packages/client/src/index.ts	Simplified Client class to use Meta interface; streamlined ClientWithData type
packages/server/src/middleware/castQueryProp.ts	Added generic type parameters and exported ParsedQs type
packages/server/src/middleware/castQueryArrayProps.ts	Updated to use DT.Any and simplified type parameters
packages/api/src/types.ts	Added ObjValues utility type

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[johngeorgewright]

🎉 This PR is included in version @targetd/api-v8.0.0 🎉

The release is available on:

• @targetd/api-v8.0.0
• GitHub release

Your semantic-release bot 📦🚀