typespec-templates

What problem does it solve?

TypeSpec templates enable reusable type patterns, reducing boilerplate and ensuring consistent type declarations, relationships, and instantiations across codebases.

Core Features & Use Cases

• Define template declarations with type parameters for flexible, generic models.
• Instantiate templates with concrete types, including keyword argument syntax and named args for clarity.
• Apply template constraints with where clauses and is/extends relationships to enforce shapes and inheritance.
• Leverage template mappers, nested templates, and multi-parameter templates to compose complex patterns.
• Use cases include modeling generic responses, pagination structures, and reusable data shapes for codegen patterns.

Quick Start

Define a template like Response<T> and instantiate it with a concrete type to generate a specialized model.