5.1.3 • Public • Published


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

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npm install hafas-rest-api


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.


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.

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  • derhuerst