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@lyku/lockstep-handles-ts

v1.8.0

Published

Generate typed handler factories from TsonHandlerModel API definitions

Readme

@lyku/lockstep-handles-ts

Generate typed handler factories from TsonHandlerModel API definitions. Part of the lockstep schema toolkit.

What it does

Takes your API endpoint models and generates:

  • Handler factories (handleCreateUser, handleGetPost, etc.) — typed wrappers that enforce request/response types
  • Runtime validators — built from the schema, embedded in each handler
  • TypeScript declarations.d.ts files with full context types (auth, WebSocket, HTTP)

Usage

import { generateHandles } from '@lyku/lockstep-handles-ts';
import * as models from '@myapp/api-models';

await generateHandles({
	models,
	outputDir: 'dist/libs/handles/src',
	modelsPackage: '@myapp/api-models',
	typesPackage: '@myapp/api-types',
	typesName: 'MyApiTypes',
});

Options

| Option | Type | Default | Description | | ---------------- | --------- | -------------------------------- | -------------------------------------------------- | | models | Record | required | Endpoint name to model map (non-handlers filtered) | | outputDir | string | required | Where to write generated files | | modelsPackage | string | required | Import path for API model definitions | | typesPackage | string | required | Import path for generated request/response types | | contextPackage | string | '@lyku/lockstep-core/contexts' | Import path for handler context types | | typesName | string | 'ApiTypes' | Name of the aggregate types map | | clean | boolean | true | Clean output directory before generating |

Generated output

For an endpoint createUser:

outputDir/
  createUser.js      # Handler factory with embedded validator
  createUser.d.ts    # TypeScript declaration
  index.js           # Re-exports all handlers
  index.d.ts         # Re-exports all types

The generated handler factory:

import { handleCreateUser } from '@myapp/handles';

export const createUser = handleCreateUser(async (request, context) => {
	// request is typed as CreateUserRequest
	// context includes auth, session, etc.
	return { id: newUser.id };
});

Where it fits

Requirements

Peer dependency on @lyku/lockstep-core (provides buildValidator, stringifyBON, formatCode, and filterHandlerModels).