public-transport/hafas-rest-api

Expose a HAFAS client via an HTTP REST API.

hafas-rest-api

Expose a hafas-client@6 instance as an HTTP REST API.

Installing

npm install hafas-rest-api

Usage

import {createClient as createHafas} from 'hafas-client'
import {profile as dbProfile} from 'hafas-client/p/db/index.js'
import {createHafasRestApi as createApi} from 'hafas-rest-api'

const config = {
	hostname: 'example.org',
	name: 'my-hafas-rest-api',
	homepage: 'https://github.com/someone/my-hafas-rest-api',
	version: '1.0.0',
	aboutPage: false
}

const hafas = createHafas(dbProfile, 'my-hafas-rest-api')
const api = await createApi(hafas, config)

api.listen(3000, (err) => {
	if (err) console.error(err)
})

config keys

key	description	mandatory?	default value
hostname	The public hostname of the API.	✔︎	–
name	The name of the API. Used for the X-Powered-By header and the about page.	✔︎	–
description	Used for the about page.	✔︎ (with aboutPage: true)	–
docsLink	Used for the about page.	✔︎ (with aboutPage: true)	–
cors	Enable CORS?	✗	true
etags	Express config for ETag headers	✗	weak
handleErrors	Handle errors by sending 5** codes and JSON.	✗	true
logging	Log requests using pino?	✗	false
healthCheck	A function that returning Promises that resolve with true (for healthy) or false.	✗	–
version	Used for the X-Powered-By and X-API-Version headers.	✗	–
homepage	Used for the X-Powered-By header.	✗	–
aboutPage	Enable the about page on GET /?	✗	true
openapiSpec	Generate and serve an OpenAPI spec of the API?	✗	false
addHafasOpts	Computes additional hafas-client opts. (opt, hafasClientMethod, httpReq) => additionaOpts	✗	–
modifyRoutes	Extend or modify the default routes.	✗	routes => routes

Pro Tip: Use hafas-client-health-check for config.healthCheck.

Contributing

If you have a question or have difficulties using hafas-rest-api, please double-check your code and setup first. If you think you have found a bug or want to propose a feature, refer to the issues page.