apiwork-js

JavaScript toolkit for Apiwork.

Provides a parser, TypeScript types, and code generators for TypeScript, Zod, and Sorbus.

Installation

npm install apiwork
# or
pnpm add apiwork

Schema

The Apiwork schema is a portable JSON description of your API. Parse it and work with typed, camelCased objects:

import { parse } from 'apiwork';
import type { Schema, Resource, Action, Param } from 'apiwork';

// From raw JSON data
const schema = parse(data);

// From a URL
const schema = await parse.url('http://localhost:3000/api/v1/.apiwork');

// From a file
const schema = await parse.file('./apiwork.json');

for (const resource of schema.resources) {
  console.log(resource.identifier);
}

parse.url() and parse.file() throw ParseError on failure, with the underlying error preserved on error.cause.

CLI

apiwork typescript ./apiwork.json --outdir src/api/sorbus
apiwork zod ./apiwork.json --outdir src/api/sorbus
apiwork sorbus ./apiwork.json --outdir src/api/sorbus

The source can be a local file or a URL:

apiwork sorbus http://localhost:3000/api/v1/.apiwork --outdir src/api/sorbus

Generators

TypeScript

Generates pure TypeScript types from representations and enums. Use this if you only need types without runtime validation.

Zod

Generates Zod validation schemas alongside TypeScript types. Use this if you need runtime validation without a typed HTTP client.

Sorbus

Generates a typed Sorbus client with operations, schemas, and endpoints. Includes everything from the TypeScript and Zod generators.

Options

All three generators share common options (fileCase, importExtension, transformIdentifier) plus their own version for the output they produce:

import { generate } from 'apiwork/sorbus';

const files = generate(schema, {
  version: 1,                     // Sorbus major version (default: 1)
  zod: { version: 4 },            // Zod inline-schemas (default: 4)
  typescript: { version: 5 },     // TypeScript types (default: 5)
  fileCase: 'kebab',
  importExtension: '.js',
  transformIdentifier: (identifier, source) => {
    if (source === 'api') return `Api${identifier}`;
    if (source === 'client' && identifier === 'Client') return 'MyClient';
    return identifier;
  },
});

version

Each generator targets a specific major version of its output:

Generator	version	Default
apiwork/typescript	TypeScript major	5
apiwork/zod	Zod major	4
apiwork/sorbus	Sorbus major	1

Generators that produce output for multiple libraries take nested configuration:

// apiwork/typescript — just TS version
generate(schema, { version: 5 });

// apiwork/zod — Zod version + TS version for exported types
generate(schema, {
  version: 4,
  typescript: { version: 5 },
});

// apiwork/sorbus — Sorbus version + Zod + TS
generate(schema, {
  version: 1,
  zod: { version: 4 },
  typescript: { version: 5 },
});

fileCase

The file name case format. Accepts 'kebab' (default), 'camel', 'pascal', or 'snake'.

Value	Example
'kebab'	invoice-line-item.ts
'camel'	invoiceLineItem.ts
'pascal'	InvoiceLineItem.ts
'snake'	invoice_line_item.ts

importExtension

The extension appended to relative import paths. Accepts '' (default), '.js', or '.ts'. Use '.js' for Node ESM or Deno.

// importExtension: ''   →  from '../api'
// importExtension: '.js' →  from '../api.js'

transformIdentifier

A callback invoked for every identifier the generator emits. Return the name unchanged to keep the default, or return a new name to rename it.

transformIdentifier?: (identifier: string, source: IdentifierSource) => string;

type IdentifierSource = 'domain' | 'api' | 'endpoint' | 'client';

source	Covers
'domain'	Types and schemas in domains/* (scoped domain types).
'api'	Types and schemas in api.ts (global domain types — highest collision risk).
'endpoint'	Types and schemas in endpoints/* (request, response, definition).
'client'	Sorbus-specific symbols: Client, createClient, contract.

Example — prefix all global types and rename the Sorbus client:

transformIdentifier: (identifier, source) => {
  if (source === 'api') return `Api${identifier}`;
  if (source === 'client' && identifier === 'Client') return 'SkiftleClient';
  if (source === 'client' && identifier === 'createClient') return 'createSkiftleClient';
  return identifier;
}

Generated output

Given this Apiwork schema:

{
  "enums": [
    { "name": "invoice_status", "values": ["draft", "sent", "paid"] }
  ],
  "types": [
    {
      "name": "invoice",
      "type": "object",
      "shape": [
        { "name": "id", "type": "string" },
        { "name": "number", "type": "string" },
        { "name": "status", "type": "string", "enum": "invoice_status" },
        { "name": "issuedOn", "type": "date", "nullable": true },
        { "name": "createdAt", "type": "datetime" },
        { "name": "updatedAt", "type": "datetime" }
      ]
    }
  ],
  "resources": [
    {
      "identifier": "invoices",
      "path": "invoices",
      "actions": [
        { "name": "invoices.index", "method": "get", "path": "/invoices" },
        { "name": "invoices.show", "method": "get", "path": "/invoices/:id" },
        { "name": "invoices.create", "method": "post", "path": "/invoices" },
        { "name": "invoices.destroy", "method": "delete", "path": "/invoices/:id" }
      ]
    }
  ]
}

apiwork sorbus generates:

api.ts
domains/
  index.ts
endpoints/
  invoices.ts
  index.ts
contract.ts
client.ts

See the full generated output for a complete example.

Frontend integration

Add a script to generate the client from your API:

{
  "scripts": {
    "sorbus": "apiwork sorbus http://localhost:3000/api/v1/.apiwork --outdir src/api/sorbus"
  }
}

pnpm sorbus

Optionally, format the generated output:

{
  "scripts": {
    "sorbus": "apiwork sorbus http://localhost:3000/api/v1/.apiwork --outdir src/api/sorbus && biome check --write src/api/sorbus"
  }
}

Using Prettier or Oxfmt? Replace biome check --write with prettier --write or oxfmt.

Use the generated client:

import { createClient } from './sorbus/client';

const api = createClient('http://localhost:3000/api/v1');

const { invoices } = await api.invoices.index();

const { invoice } = await api.invoices.show({ id: '1' });

const result = await api.invoices.create(
  { invoice: { number: 'INV-001', customerId: '1' } },
  { catch: [422] },
);

if (!result.ok) {
  console.log(result.data);
}

API Reference

apiwork

Parser and schema types.

Values:

• parse(data) — parse raw JSON data into a Schema
• parse.url(url) — fetch and parse from a URL
• parse.file(path) — read and parse from a file
• ParseError — thrown on parse failures, with cause on error.cause

Types:

Action, ActionMethod, ActionRequest, ActionResponse, ArrayParam, BinaryParam, BooleanParam, DateParam, DatetimeParam, DecimalParam, Enum, ErrorCode, FileCase, GenerateOptions, IdentifierSource, Info, InfoContact, InfoLicense, InfoServer, IntegerParam, LiteralParam, NumberParam, ObjectParam, ObjectType, Param, RecordParam, ReferenceParam, Resource, Schema, StringParam, TimeParam, Type, UnionParam, UnionType, UnknownParam, UuidParam

apiwork/typescript

TypeScript code generator — produces pure TypeScript types from the schema.

• generate(schema, options?) — returns a Map<string, string> of file paths to file contents
• TypescriptGenerateOptions — options type

apiwork/zod

Zod code generator — produces Zod schemas plus TypeScript types.

• generate(schema, options?) — returns a Map<string, string> of file paths to file contents
• ZodGenerateOptions — options type

apiwork/sorbus

Sorbus code generator — produces a typed Sorbus client, contract, Zod schemas, and TypeScript types.

• generate(schema, options?) — returns a Map<string, string> of file paths to file contents
• SorbusGenerateOptions — options type

---

All exported symbols carry full TSDoc. Hover over any import in your IDE to see descriptions, parameter docs, and examples.

License

MIT