@map-colonies/openapi-express-types

TypeScript utilities to create strictly typed express request handlers from an OpenAPI specification.

API documentation

Check the autogenerated documentation here.

Usage

import type { TypedRequestHandlers } from '@map-colonies/openapi-express-types';
import type { paths, operations } from './generated-openapi-types';

// Enforces correct typed request handlers based on OpenAPI schema
export type Handlers = TypedRequestHandlers<
  paths,
  operations,
  {
    locals: { user: string }; // Optional custom express locals
  }
>;

// Example
const getPetById: Handlers['getPetById'] = (req, res, next) => {
  // req.params.petId is strongly typed
  // res.status() / res.json() will be strongly typed
  res.status(200).json({ id: 1, name: 'Fido' });
};