24 changed files with 823 additions and 6598 deletions
--- a/.eslintrc.json
+++ b/.eslintrc.json
@ -1,11 +1,12 @@
 {
 	"extends": "eslint:recommended",
 	"env": {
-		"es2022": true,
+		"commonjs": true,
+		"es6": true,
 		"node": true
 	},
 	"parserOptions": {
-		"sourceType": "module"
+		"ecmaVersion": 2018
 	},
 	"ignorePatterns": [
 		"node_modules"
--- a/.github/renovate.json
+++ b/.github/renovate.json
@ -1,13 +0,0 @@
-{
-    "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-    "extends": [
-        "config:recommended"
-    ],
-    "configMigration": true,
-    "lockFileMaintenance": {
-        "enabled": true,
-        "automerge": true,
-        "automergeType": "branch",
-        "ignoreTests": true
-    }
-}
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@ -2,11 +2,21 @@ name: build & publish Docker image
 on:
  push:
    branches:
-      - 6
+      - 5
 jobs:
  lint-test:
-    name: lint, build & test
-    uses: './.github/workflows/lint-test.yml'
+    name: lint & test
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout
+      uses: actions/checkout@v2
+    - name: setup Node
+      uses: actions/setup-node@v1
+      with:
+        node-version: 16.x
+    - run: npm install
+    - run: npm run lint
+    - run: npm test

  build-and-publish:
    name: build & publish Docker image
@ -14,32 +24,23 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: check out the repo
-        uses: actions/checkout@v4
-      - name: set up QEMU
-        uses: docker/setup-qemu-action@v3
-      - name: configure Docker to use buildx
-        uses: docker/setup-buildx-action@v3
+        uses: actions/checkout@v2
      - name: log in to Docker Hub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_ACCESS_TOKEN }}
      - name: build Docker image & push to Docker Hub
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v2
        with:
-          context: .
          push: true
-          platforms: linux/amd64,linux/arm64
          tags: |
-            derhuerst/db-rest:6
+            derhuerst/db-rest:5
            derhuerst/db-rest:latest
-          # https://docs.docker.com/build/ci/github-actions/examples/#github-cache
-          cache-from: type=gha
-          cache-to: type=gha,mode=max,oci-mediatypes=true,compression=zstd

      # this is for the public-transport/infrastructure cluster
      - name: log in to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
@ -51,14 +52,7 @@ jobs:
        id: datetime
        run: echo "::set-output name=datetime::$(date -u +'%Y-%m-%dT%H.%M.%SZ')"
      - name: push Docker image to GitHub Registry
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v2
        with:
-          context: .
          push: true
-          platforms: linux/amd64,linux/arm64
-          tags: |
-            ghcr.io/${{github.repository}}:v6
-            ghcr.io/${{github.repository}}:v6_${{steps.hash.outputs.hash}}_${{steps.datetime.outputs.datetime}}
-          # https://docs.docker.com/build/ci/github-actions/examples/#github-cache
-          cache-from: type=gha
-          cache-to: type=gha,mode=max,oci-mediatypes=true,compression=zstd
+          tags: ghcr.io/${{github.repository}}:v5_${{steps.hash.outputs.hash}}_${{steps.datetime.outputs.datetime}}
--- a/.github/workflows/lint-test.yml
+++ b/.github/workflows/lint-test.yml
@ -1,35 +0,0 @@
-name: lint, build & test
-on:
-  push:
-    branches:
-      - '*'
-  pull_request:
-    branches:
-      - '*'
-  workflow_call:
-
-jobs:
-  lint-test:
-    name: lint, build & test
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version:
-          - '16.x'
-          - '18.x'
-          - '20.x'
-          - '22.x'
-
-    steps:
-    - name: checkout
-      uses: actions/checkout@v4
-    - name: setup Node
-      uses: actions/setup-node@v4
-      with:
-        node-version: ${{ matrix.node-version }}
-
-    - run: npm ci
-
-    - run: npm run lint
-    - run: npm run build
-    - run: npm test
--- a/.gitignore
+++ b/.gitignore
@ -5,8 +5,8 @@ Thumbs.db
 node_modules
 npm-debug.log

+/package-lock.json
 /dump.rdb

 /docs/*.html
 /docs/syntax.css
-/docs/api.md
--- a/14
+++ b/14
@ -1,10 +1,10 @@
-FROM node:18-alpine as builder
+FROM node:alpine as builder
 WORKDIR /app

 # install dependencies
 RUN apk add --update git bash
-ADD package.json package-lock.json /app
-RUN npm ci
+ADD package.json /app
+RUN npm install

 # build documentation
 ADD . /app
@ -12,13 +12,13 @@ RUN npm run build

 # ---

-FROM node:18-alpine
+FROM node:alpine
 LABEL org.opencontainers.image.title="db-rest"
 LABEL org.opencontainers.image.description="A clean REST API wrapping around the Deutsche Bahn API."
 LABEL org.opencontainers.image.authors="Jannis R <mail@jannisr.de>"
-LABEL org.opencontainers.image.documentation="https://github.com/derhuerst/db-rest/tree/6"
+LABEL org.opencontainers.image.documentation="https://github.com/derhuerst/db-rest/tree/5"
 LABEL org.opencontainers.image.source="https://github.com/derhuerst/db-rest"
-LABEL org.opencontainers.image.revision="6"
+LABEL org.opencontainers.image.revision="5"
 LABEL org.opencontainers.image.licenses="ISC"
 WORKDIR /app

@ -32,7 +32,7 @@ COPY --from=builder /app/docs ./docs

 EXPOSE 3000

-ENV HOSTNAME v6.db.transport.rest
+ENV HOSTNAME v5.db.transport.rest
 ENV PORT 3000

 CMD ["node", "index.js"]
--- a/build/api-docs.js
+++ b/build/api-docs.js
@ -1,14 +1,16 @@
-import {generateApiDocs} from 'hafas-rest-api/tools/generate-docs.js'
-import {api} from '../api.js'
+'use strict'
+
+const generateApiDocs = require('hafas-rest-api/tools/generate-docs')
+const {api} = require('./api')

 const HEAD = `\
-# \`v6.db.transport.rest\` API documentation
+# \`v5.db.transport.rest\` API documentation

-[\`v6.db.transport.rest\`](https://v6.db.transport.rest/) is a [REST API](https://restfulapi.net). Data is being returned as [JSON](https://www.json.org/).
+[\`v5.db.transport.rest\`](https://v5.db.transport.rest/) is a [REST API](https://restfulapi.net). Data is being returned as [JSON](https://www.json.org/).

 You can just use the API without authentication. There's a [rate limit](https://apisyouwonthate.com/blog/what-is-api-rate-limiting-all-about) of 100 request/minute (burst 200 requests/minute) set up.

-[OpenAPI playground](https://petstore.swagger.io/?url=https%3A%2F%2Fv6.db.transport.rest%2F.well-known%2Fservice-desc%0A)
+[OpenAPI playground](https://petstore.swagger.io/?url=https%3A%2F%2Fv5.db.transport.rest%2F.well-known%2Fservice-desc%0A)

 *Note:* The examples snippets in this documentation uses the \`url-encode\` CLI tool of the [\`url-decode-encode-cli\` package](https://www.npmjs.com/package/url-decode-encode-cli) for [URL-encoding](https://de.wikipedia.org/wiki/URL-Encoding).
 `
@ -30,22 +32,22 @@ const order = [

 const descriptions = {
 	'/locations': `\
-Uses [\`hafasClient.locations()\`](https://github.com/public-transport/hafas-client/blob/6/docs/locations.md) to **find stops/stations, POIs and addresses matching \`query\`**.
+Uses [\`hafasClient.locations()\`](https://github.com/public-transport/hafas-client/blob/5/docs/locations.md) to **find stops/stations, POIs and addresses matching \`query\`**.
 `,
 	'/stops/nearby': `\
-Uses [\`hafasClient.nearby()\`](https://github.com/public-transport/hafas-client/blob/6/docs/nearby.md) to **find stops/stations close to the given geolocation**.
+Uses [\`hafasClient.nearby()\`](https://github.com/public-transport/hafas-client/blob/5/docs/nearby.md) to **find stops/stations close to the given geolocation**.
 `,
 	'/stops/reachable-from': `\
-Uses [\`hafasClient.reachableFrom()\`](https://github.com/public-transport/hafas-client/blob/6/docs/reachable-from.md) to **find stops/stations reachable within a certain time from an address**.
+Uses [\`hafasClient.reachableFrom()\`](https://github.com/public-transport/hafas-client/blob/5/docs/reachable-from.md) to **find stops/stations reachable within a certain time from an address**.
 `,
 	'/stops/:id': `\
-Uses [\`hafasClient.stop()\`](https://github.com/public-transport/hafas-client/blob/6/docs/stop.md) to **find a stop/station by ID**.
+Uses [\`hafasClient.stop()\`](https://github.com/public-transport/hafas-client/blob/5/docs/stop.md) to **find a stop/station by ID**.
 `,
 	'/stops/:id/departures': `\
-Uses [\`hafasClient.departures()\`](https://github.com/public-transport/hafas-client/blob/6/docs/departures.md) to **get departures at a stop/station**.
+Uses [\`hafasClient.departures()\`](https://github.com/public-transport/hafas-client/blob/5/docs/departures.md) to **get departures at a stop/station**.
 `,
 	'/stops/:id/arrivals': `\
-Works like [\`/stops/:id/departures\`](#get-stopsiddepartures), except that it uses [\`hafasClient.arrivals()\`](https://github.com/public-transport/hafas-client/blob/6/docs/arrivals.md) to **arrivals at a stop/station**.
+Works like [\`/stops/:id/departures\`](#get-stopsiddepartures), except that it uses [\`hafasClient.arrivals()\`](https://github.com/public-transport/hafas-client/blob/5/docs/arrivals.md) to **arrivals at a stop/station**.
 `,
 	'/stations': `\
 If the \`query\` parameter is used, it will use [\`db-stations-autocomplete@2\`](https://github.com/derhuerst/db-stations-autocomplete/tree/2.2.0) to autocomplete *Deutsche Bahn*-operated stops/stations. Otherwise, it will filter the stops/stations in [\`db-stations@3\`](https://github.com/derhuerst/db-stations/tree/3.0.1).
@ -56,32 +58,32 @@ Instead of receiving a JSON response, you can request [newline-delimited JSON](h
 Returns a stop/station from [\`db-stations\`](https://npmjs.com/package/db-stations).
 `,
 	'/journeys': `\
-Uses [\`hafasClient.journeys()\`](https://github.com/public-transport/hafas-client/blob/6/docs/journeys.md) to **find journeys from A (\`from\`) to B (\`to\`)**.
+Uses [\`hafasClient.journeys()\`](https://github.com/public-transport/hafas-client/blob/5/docs/journeys.md) to **find journeys from A (\`from\`) to B (\`to\`)**.

 \`from\` (A), \`to\` (B), and the optional \`via\` must each have one of these formats:

 - as stop/station ID (e.g. \`from=8010159\` for *Halle (Saale) Hbf*)
- as a POI (e.g. \`from.id=991561765&from.latitude=51.48364&from.longitude=11.98084&from.name=Halle+(Saale),+Stadtpark+Halle+(Grünanlagen)\` for *Halle (Saale), Stadtpark Halle (Grünanlagen)*)
+- as a POI (e.g. \`from.id=991561765&from.latitude=51.48364&from.longitude=11.98084\` for *Halle+(Saale),+Stadtpark+Halle+(Grünanlagen)*)
 - as an address (e.g. \`from.latitude=51.25639&from.longitude=7.46685&from.address=Hansestadt+Breckerfeld,+Hansering+3\` for *Hansestadt Breckerfeld, Hansering 3*)

 ### Pagination

 Given a response, you can also fetch more journeys matching the same criteria. Instead of \`from*\`, \`to*\` & \`departure\`/\`arrival\`, pass \`earlierRef\` from the first response as \`earlierThan\` to get journeys "before", or \`laterRef\` as \`laterThan\` to get journeys "after".

-Check the [\`hafasClient.journeys()\` docs](https://github.com/public-transport/hafas-client/blob/6/docs/journeys.md) for more details.
+Check the [\`hafasClient.journeys()\` docs](https://github.com/public-transport/hafas-client/blob/5/docs/journeys.md) for more details.
 `,
 	'/journeys/:ref': `\
-Uses [\`hafasClient.refreshJourney()\`](https://github.com/public-transport/hafas-client/blob/6/docs/refresh-journey.md) to **"refresh" a journey, using its \`refreshToken\`**.
+Uses [\`hafasClient.refreshJourney()\`](https://github.com/public-transport/hafas-client/blob/5/docs/refresh-journey.md) to **"refresh" a journey, using its \`refreshToken\`**.

 The journey will be the same (equal \`from\`, \`to\`, \`via\`, date/time & vehicles used), but you can get up-to-date realtime data, like delays & cancellations.
 `,
 	'/trips/:id': `\
-Uses [\`hafasClient.trip()\`](https://github.com/public-transport/hafas-client/blob/6/docs/trip.md) to **fetch a trip by ID**.
+Uses [\`hafasClient.trip()\`](https://github.com/public-transport/hafas-client/blob/5/docs/trip.md) to **fetch a trip by ID**.

 A trip is a specific vehicle, stopping at a series of stops at specific points in time. Departures, arrivals & journey legs reference trips by their ID.
 `,
 	'/radar': `\
-Uses [\`hafasClient.radar()\`](https://github.com/public-transport/hafas-client/blob/6/docs/radar.md) to **find all vehicles currently in an area**, as well as their movements.
+Uses [\`hafasClient.radar()\`](https://github.com/public-transport/hafas-client/blob/5/docs/radar.md) to **find all vehicles currently in an area**, as well as their movements.
 `,
 }

@ -90,7 +92,7 @@ const examples = {
 ### Example

 \`\`\`shell
-curl 'https://v6.db.transport.rest/locations?query=halle&results=1' -s | jq
+curl 'https://v5.db.transport.rest/locations?query=halle&results=1' -s | jq
 \`\`\`

 \`\`\`js
@ -118,7 +120,7 @@ curl 'https://v6.db.transport.rest/locations?query=halle&results=1' -s | jq
 ### Example

 \`\`\`shell
-curl 'https://v6.db.transport.rest/stops/nearby?latitude=53.5711&longitude=10.0015' -s | jq
+curl 'https://v5.db.transport.rest/stops/nearby?latitude=53.5711&longitude=10.0015' -s | jq
 \`\`\`

 \`\`\`js
@ -158,7 +160,7 @@ curl 'https://v6.db.transport.rest/stops/nearby?latitude=53.5711&longitude=10.00
 ### Example

 \`\`\`shell
-curl 'https://v6.db.transport.rest/stops/reachable-from?latitude=53.553766&longitude=9.977514&address=Hamburg,+Holstenwall+9' -s | jq
+curl 'https://v5.db.transport.rest/stops/reachable-from?latitude=53.553766&longitude=9.977514&address=Hamburg,+Holstenwall+9' -s | jq
 \`\`\`

 \`\`\`js
@ -198,7 +200,7 @@ curl 'https://v6.db.transport.rest/stops/reachable-from?latitude=53.553766&longi
 ### Example

 \`\`\`shell
-curl 'https://v6.db.transport.rest/stops/8010159' -s | jq
+curl 'https://v5.db.transport.rest/stops/8010159' -s | jq
 \`\`\`

 \`\`\`js
@ -227,7 +229,7 @@ curl 'https://v6.db.transport.rest/stops/8010159' -s | jq

 \`\`\`shell
 # autocomplete using db-stations-autocomplete
-curl 'https://v6.db.transport.rest/stations?query=dammt' -s | jq
+curl 'https://v5.db.transport.rest/stations?query=dammt' -s | jq
 \`\`\`

 \`\`\`js
@ -263,7 +265,7 @@ curl 'https://v6.db.transport.rest/stations?query=dammt' -s | jq

 \`\`\`shell
 # filter db-stations by \`hasParking\` property
-curl 'https://v6.db.transport.rest/stations?hasParking=true' -s | jq
+curl 'https://v5.db.transport.rest/stations?hasParking=true' -s | jq
 \`\`\`

 \`\`\`js
@ -285,7 +287,7 @@ curl 'https://v6.db.transport.rest/stations?hasParking=true' -s | jq

 \`\`\`shell
 # filter db-stations by \`hasDBLounge\` property, get newline-delimited JSON
-curl 'https://v6.db.transport.rest/stations?hasDBLounge=true' -H 'accept: application/x-ndjson' -s | jq
+curl 'https://v5.db.transport.rest/stations?hasDBLounge=true' -H 'accept: application/x-ndjson' -s | jq
 \`\`\`
 `,
 	'/stations/:id': `\
@ -293,9 +295,9 @@ curl 'https://v6.db.transport.rest/stations?hasDBLounge=true' -H 'accept: applic

 \`\`\`shell
 # lookup Halle (Saale) Hbf
-curl 'https://v6.db.transport.rest/stations/8010159' -s | jq
-curl 'https://v6.db.transport.rest/stations/LH' -s | jq # RIL100/DS100
-curl 'https://v6.db.transport.rest/stations/LHG' -s | jq # RIL100/DS100
+curl 'https://v5.db.transport.rest/stations/8010159' -s | jq
+curl 'https://v5.db.transport.rest/stations/LH' -s | jq # RIL100/DS100
+curl 'https://v5.db.transport.rest/stations/LHG' -s | jq # RIL100/DS100
 \`\`\`

 \`\`\`js
@ -326,7 +328,7 @@ curl 'https://v6.db.transport.rest/stations/LHG' -s | jq # RIL100/DS100

 \`\`\`shell
 # at Halle (Saale) Hbf, in direction Berlin Südkreuz
-curl 'https://v6.db.transport.rest/stops/8010159/departures?direction=8011113&duration=120' -s | jq
+curl 'https://v5.db.transport.rest/stops/8010159/departures?direction=8011113&duration=120' -s | jq
 \`\`\`

 \`\`\`js
@ -368,7 +370,7 @@ curl 'https://v6.db.transport.rest/stops/8010159/departures?direction=8011113&du

 \`\`\`shell
 # at Halle (Saale) Hbf, 10 minutes
-curl 'https://v6.db.transport.rest/stops/8010159/arrivals?duration=10' -s | jq
+curl 'https://v5.db.transport.rest/stops/8010159/arrivals?duration=10' -s | jq
 \`\`\`
 `,
 	'/journeys': `\
@ -376,9 +378,9 @@ curl 'https://v6.db.transport.rest/stops/8010159/arrivals?duration=10' -s | jq

 \`\`\`shell
 # stop/station to POI
-curl 'https://v6.db.transport.rest/journeys?from=8010159&to.id=991561765&to.latitude=51.483641&to.longitude=11.980841' -s | jq
+curl 'https://v5.db.transport.rest/journeys?from=8010159&to.id=991561765&to.latitude=51.483641&to.longitude=11.980841' -s | jq
 # without buses, with ticket info
-curl 'https://v6.db.transport.rest/journeys?from=…&to=…&bus=false&tickets=true' -s | jq
+curl 'https://v5.db.transport.rest/journeys?from=…&to=…&bus=false&tickets=true' -s | jq
 \`\`\`
 `,
 	'/journeys/:ref': `\
@ -386,11 +388,11 @@ curl 'https://v6.db.transport.rest/journeys?from=…&to=…&bus=false&tickets=tr

 \`\`\`shell
 # get the refreshToken of a journey
-journey=$(curl 'https://v6.db.transport.rest/journeys?from=…&to=…&results=1' -s | jq '.journeys[0]')
+journey=$(curl 'https://v5.db.transport.rest/journeys?from=…&to=…&results=1' -s | jq '.journeys[0]')
 refresh_token=$(echo $journey | jq -r '.refreshToken')

 # refresh the journey
-curl "https://v6.db.transport.rest/journeys/$(echo $refresh_token | url-encode)" -s | jq
+curl "https://v5.db.transport.rest/journeys/$(echo $refresh_token | url-encode)" -s | jq
 \`\`\`
 `,
 	'/trips/:id': `\
@ -398,12 +400,12 @@ curl "https://v6.db.transport.rest/journeys/$(echo $refresh_token | url-encode)"

 \`\`\`shell
 # get the trip ID of a journey leg
-journey=$(curl 'https://v6.db.transport.rest/journeys?from=…&to=…&results=1' -s | jq '.journeys[0]')
+journey=$(curl 'https://v5.db.transport.rest/journeys?from=…&to=…&results=1' -s | jq '.journeys[0]')
 journey_leg=$(echo $journey | jq -r '.legs[0]')
 trip_id=$(echo $journey_leg | jq -r '.tripId')

 # fetch the trip
-curl "https://v6.db.transport.rest/trips/$(echo $trip_id | url-encode)" -s | jq
+curl "https://v5.db.transport.rest/trips/$(echo $trip_id | url-encode)" -s | jq
 \`\`\`
 `,
 	'/radar': `\
@ -411,47 +413,45 @@ curl "https://v6.db.transport.rest/trips/$(echo $trip_id | url-encode)" -s | jq

 \`\`\`shell
 bbox='north=53.555&west=9.989&south=53.55&east=10.001'
-curl "https://v6.db.transport.rest/radar?$bbox&results=10" -s | jq
+curl "https://v5.db.transport.rest/radar?$bbox&results=10" -s | jq
 \`\`\`
 `,
 }

-const generateMarkdownApiDocs = async function* () {
-	const {
-		listOfRoutes,
-		routes,
-		tail,
-	} = generateApiDocs(api.routes)
+const {
+	listOfRoutes,
+	routes,
+	tail,
+} = generateApiDocs(api.routes)

-	const sortedRoutes = Object.entries(routes)
-	.sort(([routeA], [routeB]) => {
-		const iA = order.indexOf(routeA)
-		const iB = order.indexOf(routeB)
-		if (iA >= 0 && iB >= 0) return iA - iB
-		if (iA < 0 && iB >= 0) return 1
-		if (iB < 0 && iA >= 0) return -1
-		return 0
-	})
+const sortedRoutes = Object.entries(routes)
+.sort(([routeA], [routeB]) => {
+	const iA = order.indexOf(routeA)
+	const iB = order.indexOf(routeB)
+	if (iA >= 0 && iB >= 0) return iA - iB
+	if (iA < 0 && iB >= 0) return 1
+	if (iB < 0 && iA >= 0) return -1
+	return 0
+})

-	yield HEAD
-	yield `\n\n`
+const write = process.stdout.write.bind(process.stdout)

-	yield listOfRoutes
-	yield `\n\n`
+write(HEAD)
+write(`\n\n`)

-	for (const [route, params] of sortedRoutes) {
-		yield `## \`GET ${route}\`\n\n`
-		yield descriptions[route] || ''
-		yield `\n### Query Parameters\n`
-		yield params
-		if (examples[route]) {
-			yield '\n' + examples[route]
-		}
-		yield `\n\n`
+write(listOfRoutes)
+write(`\n\n`)
+
+for (const [route, params] of sortedRoutes) {
+	write(`## \`GET ${route}\`\n\n`)
+	write(descriptions[route] || '')
+	write(`
+### Query Parameters
+`)
+	write(params)
+	if (examples[route]) {
+		write('\n' + examples[route])
 	}
-	yield tail
+	write(`\n\n`)
 }
-
-export {
-	generateMarkdownApiDocs,
-}
+write(tail)
--- a/api.js
+++ b/api.js
@ -1,36 +1,29 @@
-// todo: use import assertions once they're supported by Node.js & ESLint
-// https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'node:module'
-const require = createRequire(import.meta.url)
-
-import {dirname, join as pathJoin} from 'node:path'
-import {fileURLToPath} from 'node:url'
-import {createDbHafas as createHafas} from 'db-hafas'
-import {createHafasRestApi} from 'hafas-rest-api'
-import createHealthCheck from 'hafas-client-health-check'
-import Redis from 'ioredis'
-import {createCachedHafasClient} from 'cached-hafas-client'
-import {createRedisStore} from 'cached-hafas-client/stores/redis.js'
-import serveStatic from 'serve-static'
-import {parseBoolean, parseInteger} from 'hafas-rest-api/lib/parse.js'
-import {loyaltyCardParser} from './lib/loyalty-cards.js'
-import {route as stations} from './routes/stations.js'
-import {route as station} from './routes/station.js'
+'use strict'

+const createHafas = require('db-hafas')
+const createApi = require('hafas-rest-api')
+const createHealthCheck = require('hafas-client-health-check')
+const Redis = require('ioredis')
+const withCache = require('cached-hafas-client')
+const redisStore = require('cached-hafas-client/stores/redis')
+const {join: pathJoin} = require('path')
+const serveStatic = require('serve-static')
+const {parseBoolean} = require('hafas-rest-api/lib/parse')
 const pkg = require('./package.json')
+const {loyaltyCardParser} = require('./lib/loyalty-cards')
+const stations = require('./routes/stations')
+const station = require('./routes/station')

-const __dirname = dirname(fileURLToPath(import.meta.url))
 const docsRoot = pathJoin(__dirname, 'docs')

 const berlinHbf = '8011160'

-// todo: use process.env.HAFAS_USER_AGENT if defined
 let hafas = createHafas(pkg.name)
 let healthCheck = createHealthCheck(hafas, berlinHbf)

 if (process.env.REDIS_URL) {
 	const redis = new Redis(process.env.REDIS_URL || null)
-	hafas = createCachedHafasClient(hafas, createRedisStore(redis), {
+	hafas = withCache(hafas, redisStore(redis), {
 		cachePeriods: {
 			locations: 6 * 60 * 60 * 1000, // 6h
 		},
@ -61,12 +54,6 @@ const mapRouteParsers = (route, parsers) => {
 			default: 'false',
 			parse: parseBoolean,
 		},
-		age: {
-			description: 'Age of traveller',
-			type: 'integer',
-			defaultStr: '*adult*',
-			parse: parseInteger
-		},
 	}
 }

@ -83,7 +70,7 @@ const config = {
 	description: pkg.description,
 	homepage: pkg.homepage,
 	version: pkg.version,
-	docsLink: 'https://github.com/derhuerst/db-rest/blob/6/docs/readme.md',
+	docsLink: 'https://github.com/derhuerst/db-rest/blob/5/docs/readme.md',
 	openapiSpec: true,
 	logging: true,
 	aboutPage: false,
@ -94,13 +81,13 @@ const config = {
 	modifyRoutes,
 }

-const api = await createHafasRestApi(hafas, config, (api) => {
+const api = createApi(hafas, config, (api) => {
 	api.use('/', serveStatic(docsRoot, {
 		extensions: ['html', 'htm'],
 	}))
 })

-export {
+module.exports = {
 	hafas,
 	config,
 	api,
--- a/architecture.svg
+++ b/architecture.svg
@ -42,7 +42,7 @@
 		<rect class="box" x="0" y="0" width="100" height="41" />
 		<text class="monospace-text" x="26.2" y="13">db-rest</text>
 		<text class="normal-text small-text" x="4" y="26">deployed at</text>
-		<text class="monospace-text small-text" x="4" y="36">v6.db.transport.rest</text>
+		<text class="monospace-text small-text" x="4" y="36">v5.db.transport.rest</text>
 	</g>
 	<g transform="translate(269, 14)">
 		<path class="arrow" d="M0,14 L50,14" />
--- a/build/index.js
+++ b/build/index.js
@ -1,86 +0,0 @@
-#!/usr/bin/env node
-
-// todo: use import assertions once they're supported by Node.js & ESLint
-// https://github.com/tc39/proposal-import-assertions
-import {createRequire} from 'module'
-const require = createRequire(import.meta.url)
-
-import {dirname, join} from 'node:path'
-import {pipeline} from 'node:stream/promises'
-import {createReadStream, createWriteStream} from 'node:fs'
-import {copyFile} from 'node:fs/promises'
-import _technicalDocsCli from '@derhuerst/technical-docs-cli'
-import {config} from '../api.js'
-const {
-	createMarkdownRenderer,
-	determineSyntaxStylesheetPath,
-} = _technicalDocsCli
-import {generateMarkdownApiDocs} from './api-docs.js'
-
-const pkg = require('../package.json')
-
-const BASE_URL = new URL('..', import.meta.url).href
-const API_DOCS_DEST = 'docs/api.md'
-const DOCS_TO_RENDER = [
-	['docs/readme.md', 'docs/index.html'],
-	['docs/getting-started.md', 'docs/getting-started.html'],
-	['docs/api.md', 'docs/api.html'],
-]
-const SYNTAX_STYLESHEET_URL = '/syntax.css'
-const SYNTAX_STYLESHEET_SRC = determineSyntaxStylesheetPath('github')
-const SYNTAX_STYLESHEET_DEST = 'docs/syntax.css'
-
-{
-	console.info('writing Markdown API docs to ' + API_DOCS_DEST)
-
-	const destPath = new URL(API_DOCS_DEST, BASE_URL).pathname
-	await pipeline(
-		generateMarkdownApiDocs(),
-		createWriteStream(destPath),
-	)
-}
-
-const markdownRenderingCfg = {
-	syntaxStylesheetUrl: SYNTAX_STYLESHEET_URL,
-	additionalHeadChildren: (h) => {
-		if (!pkg.goatCounterUrl) return []
-		return [
-			// https://72afc0822cce0642af90.goatcounter.com/help/skip-dev#skip-loading-staging-beta-sites-312
-			h('script', `
-if (window.location.host !== ${JSON.stringify(config.hostname)}) {
-    window.goatcounter = {no_onload: true}
-}
-`),
-			// https://72afc0822cce0642af90.goatcounter.com/help/start
-			h('script', {
-				src: '//gc.zgo.at/count.js',
-				async: true,
-				'data-goatcounter': pkg.goatCounterUrl,
-			}),
-		]
-	},
-}
-for (const [src, dest] of DOCS_TO_RENDER) {
-	console.info(`rendering Markdown file ${src} to HTML file ${dest}`)
-
-	const srcPath = new URL(src, BASE_URL).pathname
-	const destPath = new URL(dest, BASE_URL).pathname
-	// unfortunately, we can't use stream.pipeline right now
-	// see https://github.com/unifiedjs/unified-stream/issues/1
-	await new Promise((resolve, reject) => {
-		createReadStream(srcPath)
-		.once('error', reject)
-		.pipe(createMarkdownRenderer(markdownRenderingCfg))
-		.once('error', reject)
-		.pipe(createWriteStream(destPath))
-		.once('error', reject)
-		.once('finish', resolve)
-	})
-}
-
-{
-	const srcPath = SYNTAX_STYLESHEET_SRC
-	const destPath = new URL(SYNTAX_STYLESHEET_DEST, BASE_URL).pathname
-	console.info(`copying syntax stylesheet from ${srcPath} to ${destPath}`)
-	await copyFile(srcPath, destPath)
-}
--- a/docs/api.md
+++ b/docs/api.md
@ -0,0 +1,620 @@
+# `v5.db.transport.rest` API documentation
+
+[`v5.db.transport.rest`](https://v5.db.transport.rest/) is a [REST API](https://restfulapi.net). Data is being returned as [JSON](https://www.json.org/).
+
+You can just use the API without authentication. There's a [rate limit](https://apisyouwonthate.com/blog/what-is-api-rate-limiting-all-about) of 100 request/minute (burst 200 requests/minute) set up.
+
+[OpenAPI playground](https://petstore.swagger.io/?url=https%3A%2F%2Fv5.db.transport.rest%2F.well-known%2Fservice-desc%0A)
+
+*Note:* The examples snippets in this documentation uses the `url-encode` CLI tool of the [`url-decode-encode-cli` package](https://www.npmjs.com/package/url-decode-encode-cli) for [URL-encoding](https://de.wikipedia.org/wiki/URL-Encoding).
+
+
+## Routes
+
+*Note:* These routes only wrap [`hafas-client@5` methods](https://github.com/public-transport/hafas-client/blob/5/docs/readme.md), check their docs for more details.
+
+
+- [`GET /stops/nearby`](#get-stopsnearby)
+- [`GET /stops/reachable-from`](#get-stopsreachable-from)
+- [`GET /stops/:id`](#get-stopsid)
+- [`GET /stops/:id/departures`](#get-stopsiddepartures)
+- [`GET /stops/:id/arrivals`](#get-stopsidarrivals)
+- [`GET /journeys`](#get-journeys)
+- [`GET /trips/:id`](#get-tripsid)
+- [`GET /locations`](#get-locations)
+- [`GET /radar`](#get-radar)
+- [`GET /journeys/:ref`](#get-journeysref)
+- [`GET /stations/:id`](#get-stationsid)
+- [`GET /stations`](#get-stations)
+- [date/time parameters](#datetime-parameters)
+
+
+## `GET /locations`
+
+Uses [`hafasClient.locations()`](https://github.com/public-transport/hafas-client/blob/5/docs/locations.md) to **find stops/stations, POIs and addresses matching `query`**.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`query` | **Required.**  | string | –
+`fuzzy` | Find more than exact matches? | boolean | `true`
+`results` | How many stations shall be shown? | integer | `10`
+`stops` | Show stops/stations? | boolean | `true`
+`addresses` | Show points of interest? | boolean | `true`
+`poi` | Show addresses? | boolean | `true`
+`linesOfStops` | Parse & return lines of each stop/station? | boolean | `false`
+`language` | Language of the results. | string | `en`
+`pretty` | Pretty-print JSON responses? | boolean | `true`
+
+### Example
+
+```shell
+curl 'https://v5.db.transport.rest/locations?query=halle&results=1' -s | jq
+```
+
+```js
+[
+	{
+		"type": "stop",
+		"id": "8010159",
+		"name": "Halle (Saale) Hbf",
+		"location": {
+			"type": "location",
+			"id": "8010159",
+			"latitude": 51.477079,
+			"longitude": 11.98699
+		},
+		"products": {
+			"nationalExpress": true,
+			"national": true,
+			// …
+		}
+	}
+]
+```
+
+
+## `GET /stops/nearby`
+
+Uses [`hafasClient.nearby()`](https://github.com/public-transport/hafas-client/blob/5/docs/nearby.md) to **find stops/stations close to the given geolocation**.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`latitude` | **Required.**  | number | –
+`longitude` | **Required.**  | number | –
+`results` | maximum number of results | integer | `8`
+`distance` | maximum walking distance in meters | integer | –
+`stops` | Return stops/stations? | boolean | `true`
+`poi` | Return points of interest? | boolean | `false`
+`linesOfStops` | Parse & expose lines at each stop/station? | boolean | `false`
+`language` | Language of the results. | string | `en`
+`pretty` | Pretty-print JSON responses? | boolean | `true`
+
+### Example
+
+```shell
+curl 'https://v5.db.transport.rest/stops/nearby?latitude=53.5711&longitude=10.0015' -s | jq
+```
+
+```js
+[
+	{
+		"type": "stop",
+		"id": "694800",
+		"name": "Böttgerstraße, Hamburg",
+		"location": {
+			"type": "location",
+			"id": "694800",
+			"latitude": 53.568356,
+			"longitude": 9.995528
+		},
+		"products": { /* … */ },
+		"distance": 498,
+	},
+	// …
+	{
+		"type": "stop",
+		"id": "694802",
+		"name": "Bahnhof Dammtor, Hamburg",
+		"location": {
+			"type": "location",
+			"id": "694802",
+			"latitude": 53.561048,
+			"longitude": 9.990315
+		},
+		"products": { /* … */ },
+		"distance": 1340,
+	},
+	// …
+]
+```
+
+
+## `GET /stops/reachable-from`
+
+Uses [`hafasClient.reachableFrom()`](https://github.com/public-transport/hafas-client/blob/5/docs/reachable-from.md) to **find stops/stations reachable within a certain time from an address**.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`latitude` | **Required.**  | number | –
+`longitude` | **Required.**  | number | –
+`address` | **Required.**  | string | –
+`when` | Date & time to compute the reachability for. See [date/time parameters](#datetime-parameters). | date+time | *now*
+`maxTransfers` | Maximum number of transfers. | integer | `5`
+`maxDuration` | Maximum travel duration, in minutes. | integer | *infinite*
+`language` | Language of the results. | string | `en`
+`nationalExpress` | Include InterCityExpress (ICE)? | boolean | `true`
+`national` | Include InterCity & EuroCity (IC/EC)? | boolean | `true`
+`regionalExp` | Include RegionalExpress & InterRegio (RE/IR)? | boolean | `true`
+`regional` | Include Regio (RB)? | boolean | `true`
+`suburban` | Include S-Bahn (S)? | boolean | `true`
+`bus` | Include Bus (B)? | boolean | `true`
+`ferry` | Include Ferry (F)? | boolean | `true`
+`subway` | Include U-Bahn (U)? | boolean | `true`
+`tram` | Include Tram (T)? | boolean | `true`
+`taxi` | Include Group Taxi (Taxi)? | boolean | `true`
+`pretty` | Pretty-print JSON responses? | boolean | `true`
+
+### Example
+
+```shell
+curl 'https://v5.db.transport.rest/stops/reachable-from?latitude=53.553766&longitude=9.977514&address=Hamburg,+Holstenwall+9' -s | jq
+```
+
+```js
+[
+	{
+		"duration": 1,
+		"stations": [
+			{
+				"type": "stop",
+				"id": "694815",
+				"name": "Handwerkskammer, Hamburg",
+				"location": { /* … */ },
+				"products": { /* … */ },
+			},
+		]
+	},
+	// …
+	{
+		"duration": 5,
+		"stations": [
+			{
+				"type": "stop",
+				"id": "694807",
+				"name": "Feldstraße (U), Hamburg",
+				"location": { /* … */ },
+				"products": { /* … */ },
+				// …
+			},
+			// …
+		]
+	},
+	// …
+]
+```
+
+
+## `GET /stops/:id`
+
+Uses [`hafasClient.stop()`](https://github.com/public-transport/hafas-client/blob/5/docs/stop.md) to **find a stop/station by ID**.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`linesOfStops` | Parse & expose lines at each stop/station? | boolean | `false`
+`language` | Language of the results. | string | `en`
+`pretty` | Pretty-print JSON responses? | boolean | `true`
+
+### Example
+
+```shell
+curl 'https://v5.db.transport.rest/stops/8010159' -s | jq
+```
+
+```js
+{
+	"type": "stop",
+	"id": "8010159",
+	"ids": {
+		"dhid": "de:15002:8010159",
+		"MDV": "8010159",
+		"NASA": "8010159"
+	},
+	"name": "Halle (Saale) Hbf",
+	"location": {
+		"type": "location",
+		"id": "8010159",
+		"latitude": 51.477079,
+		"longitude": 11.98699
+	},
+	"products": { /* … */ },
+	// …
+}
+```
+
+
+## `GET /stops/:id/departures`
+
+Uses [`hafasClient.departures()`](https://github.com/public-transport/hafas-client/blob/5/docs/departures.md) to **get departures at a stop/station**.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`when` | Date & time to get departures for. See [date/time parameters](#datetime-parameters). | date+time | *now*
+`direction` | Filter departures by direction. | string |  
+`duration` | Show departures for how many minutes? | integer | `10`
+`results` | Max. number of departures. | integer | *whatever HAFAS wants
+`linesOfStops` | Parse & return lines of each stop/station? | boolean | `false`
+`remarks` | Parse & return hints & warnings? | boolean | `true`
+`language` | Language of the results. | string | `en`
+`nationalExpress` | Include InterCityExpress (ICE)? | boolean | `true`
+`national` | Include InterCity & EuroCity (IC/EC)? | boolean | `true`
+`regionalExp` | Include RegionalExpress & InterRegio (RE/IR)? | boolean | `true`
+`regional` | Include Regio (RB)? | boolean | `true`
+`suburban` | Include S-Bahn (S)? | boolean | `true`
+`bus` | Include Bus (B)? | boolean | `true`
+`ferry` | Include Ferry (F)? | boolean | `true`
+`subway` | Include U-Bahn (U)? | boolean | `true`
+`tram` | Include Tram (T)? | boolean | `true`
+`taxi` | Include Group Taxi (Taxi)? | boolean | `true`
+`pretty` | Pretty-print JSON responses? | boolean | `true`
+
+### Example
+
+```shell
+# at Halle (Saale) Hbf, in direction Berlin Südkreuz
+curl 'https://v5.db.transport.rest/stops/8010159/departures?direction=8011113&duration=120' -s | jq
+```
+
+```js
+[
+	{
+		"tripId": "1|317591|0|80|1052020",
+		"direction": "Berlin Hbf (tief)",
+		"line": {
+			"type": "line",
+			"id": "ice-702",
+			"name": "ICE 702",
+			"mode": "train",
+			"product": "nationalExpress",
+			// …
+		},
+
+		"when": "2020-05-01T21:06:00+02:00",
+		"plannedWhen": "2020-05-01T21:06:00+02:00",
+		"delay": 0,
+		"platform": "8",
+		"plannedPlatform": "8",
+
+		"stop": {
+			"type": "stop",
+			"id": "8010159",
+			"name": "Halle (Saale) Hbf",
+			"location": { /* … */ },
+			"products": { /* … */ },
+		},
+
+		"remarks": [],
+		// …
+	}
+]
+```
+
+
+## `GET /stops/:id/arrivals`
+
+Works like [`/stops/:id/departures`](#get-stopsiddepartures), except that it uses [`hafasClient.arrivals()`](https://github.com/public-transport/hafas-client/blob/5/docs/arrivals.md) to **arrivals at a stop/station**.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`when` | Date & time to get departures for. See [date/time parameters](#datetime-parameters). | date+time | *now*
+`direction` | Filter departures by direction. | string |  
+`duration` | Show departures for how many minutes? | integer | `10`
+`results` | Max. number of departures. | integer | *whatever HAFAS wants*
+`linesOfStops` | Parse & return lines of each stop/station? | boolean | `false`
+`remarks` | Parse & return hints & warnings? | boolean | `true`
+`language` | Language of the results. | string | `en`
+`nationalExpress` | Include InterCityExpress (ICE)? | boolean | `true`
+`national` | Include InterCity & EuroCity (IC/EC)? | boolean | `true`
+`regionalExp` | Include RegionalExpress & InterRegio (RE/IR)? | boolean | `true`
+`regional` | Include Regio (RB)? | boolean | `true`
+`suburban` | Include S-Bahn (S)? | boolean | `true`
+`bus` | Include Bus (B)? | boolean | `true`
+`ferry` | Include Ferry (F)? | boolean | `true`
+`subway` | Include U-Bahn (U)? | boolean | `true`
+`tram` | Include Tram (T)? | boolean | `true`
+`taxi` | Include Group Taxi (Taxi)? | boolean | `true`
+`pretty` | Pretty-print JSON responses? | boolean | `true`
+
+### Example
+
+```shell
+# at Halle (Saale) Hbf, 10 minutes
+curl 'https://v5.db.transport.rest/stops/8010159/arrivals?duration=10' -s | jq
+```
+
+
+## `GET /journeys`
+
+Uses [`hafasClient.journeys()`](https://github.com/public-transport/hafas-client/blob/5/docs/journeys.md) to **find journeys from A (`from`) to B (`to`)**.
+
+`from` (A), `to` (B), and the optional `via` must each have one of these formats:
+
+- as stop/station ID (e.g. `from=8010159` for *Halle (Saale) Hbf*)
+- as a POI (e.g. `from.id=991561765&from.latitude=51.48364&from.longitude=11.98084` for *Halle+(Saale),+Stadtpark+Halle+(Grünanlagen)*)
+- as an address (e.g. `from.latitude=51.25639&from.longitude=7.46685&from.address=Hansestadt+Breckerfeld,+Hansering+3` for *Hansestadt Breckerfeld, Hansering 3*)
+
+### Pagination
+
+Given a response, you can also fetch more journeys matching the same criteria. Instead of `from*`, `to*` & `departure`/`arrival`, pass `earlierRef` from the first response as `earlierThan` to get journeys "before", or `laterRef` as `laterThan` to get journeys "after".
+
+Check the [`hafasClient.journeys()` docs](https://github.com/public-transport/hafas-client/blob/5/docs/journeys.md) for more details.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`departure` | Compute journeys departing at this date/time. Mutually exclusive with `arrival`. See [date/time parameters](#datetime-parameters). | date+time | *now*
+`arrival` | Compute journeys arriving at this date/time. Mutually exclusive with `departure`. See [date/time parameters](#datetime-parameters). | date+time | *now*
+`earlierThan` | Compute journeys "before" an `ealierRef`. | string |  
+`laterThan` | Compute journeys "after" an `laterRef`. | string |  
+`results` | Max. number of journeys. | integer | `3`
+`stopovers` | Fetch & parse stopovers on the way? | boolean | `false`
+`transfers` | Maximum number of transfers. | integer | *let HAFAS decide*
+`transferTime` | Minimum time in minutes for a single transfer. | integer | `0`
+`accessibility` | `partial` or `complete`. | string | *not accessible*
+`bike` | Compute only bike-friendly journeys? | boolean | `false`
+`startWithWalking` | Consider walking to nearby stations at the beginning of a journey? | boolean | `true`
+`walkingSpeed` | `slow`, `normal` or `fast`. | string | `normal`
+`tickets` | Return information about available tickets? | boolean | `false`
+`polylines` | Fetch & parse a shape for each journey leg? | boolean | `false`
+`remarks` | Parse & return hints & warnings? | boolean | `true`
+`scheduledDays` | Parse & return dates each journey is valid on? | boolean | `false`
+`language` | Language of the results. | string | `en`
+`loyaltyCard` | Type of loyalty card in use. | string | *none*
+`firstClass` | Search for first-class options? | boolean | `false`
+`nationalExpress` | Include InterCityExpress (ICE)? | boolean | `true`
+`national` | Include InterCity & EuroCity (IC/EC)? | boolean | `true`
+`regionalExp` | Include RegionalExpress & InterRegio (RE/IR)? | boolean | `true`
+`regional` | Include Regio (RB)? | boolean | `true`
+`suburban` | Include S-Bahn (S)? | boolean | `true`
+`bus` | Include Bus (B)? | boolean | `true`
+`ferry` | Include Ferry (F)? | boolean | `true`
+`subway` | Include U-Bahn (U)? | boolean | `true`
+`tram` | Include Tram (T)? | boolean | `true`
+`taxi` | Include Group Taxi (Taxi)? | boolean | `true`
+`pretty` | Pretty-print JSON responses? | boolean | `true`
+
+### Examples
+
+```shell
+# stop/station to POI
+curl 'https://v5.db.transport.rest/journeys?from=8010159&to.id=991561765&to.latitude=51.483641&to.longitude=11.980841' -s | jq
+# without buses, with ticket info
+curl 'https://v5.db.transport.rest/journeys?from=…&to=…&bus=false&tickets=true' -s | jq
+```
+
+
+## `GET /journeys/:ref`
+
+Uses [`hafasClient.refreshJourney()`](https://github.com/public-transport/hafas-client/blob/5/docs/refresh-journey.md) to **"refresh" a journey, using its `refreshToken`**.
+
+The journey will be the same (equal `from`, `to`, `via`, date/time & vehicles used), but you can get up-to-date realtime data, like delays & cancellations.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`stopovers` | Fetch & parse stopovers on the way? | boolean | `false`
+`tickets` | Return information about available tickets? | boolean | `false`
+`polylines` | Fetch & parse a shape for each journey leg? | boolean | `false`
+`remarks` | Parse & return hints & warnings? | boolean | `true`
+`language` | Language of the results. | string | `en`
+`pretty` | Pretty-print JSON responses? | boolean | `true`
+
+### Example
+
+```shell
+# get the refreshToken of a journey
+journey=$(curl 'https://v5.db.transport.rest/journeys?from=…&to=…&results=1' -s | jq '.journeys[0]')
+refresh_token=$(echo $journey | jq -r '.refreshToken')
+
+# refresh the journey
+curl "https://v5.db.transport.rest/journeys/$(echo $refresh_token | url-encode)" -s | jq
+```
+
+
+## `GET /trips/:id`
+
+Uses [`hafasClient.trip()`](https://github.com/public-transport/hafas-client/blob/5/docs/trip.md) to **fetch a trip by ID**.
+
+A trip is a specific vehicle, stopping at a series of stops at specific points in time. Departures, arrivals & journey legs reference trips by their ID.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`lineName` | **Required.** Line name of the part's mode of transport, e.g. `RE7`. | string | –
+`stopovers` | Fetch & parse stopovers on the way? | boolean | `true`
+`remarks` | Parse & return hints & warnings? | boolean | `true`
+`polyline` | Fetch & parse the geographic shape of the trip? | boolean | `false`
+`language` | Language of the results. | string | `en`
+`pretty` | Pretty-print JSON responses? | boolean | `true`
+
+### Example
+
+```shell
+# get the trip ID of a journey leg
+journey=$(curl 'https://v5.db.transport.rest/journeys?from=…&to=…&results=1' -s | jq '.journeys[0]')
+journey_leg=$(echo $journey | jq -r '.legs[0]')
+trip_id=$(echo $journey_leg | jq -r '.tripId')
+
+# fetch the trip
+curl "https://v5.db.transport.rest/trips/$(echo $trip_id | url-encode)" -s | jq
+```
+
+
+## `GET /stations`
+
+If the `query` parameter is used, it will use [`db-stations-autocomplete@2`](https://github.com/derhuerst/db-stations-autocomplete/tree/2.2.0) to autocomplete *Deutsche Bahn*-operated stops/stations. Otherwise, it will filter the stops/stations in [`db-stations@3`](https://github.com/derhuerst/db-stations/tree/3.0.1).
+
+Instead of receiving a JSON response, you can request [newline-delimited JSON](http://ndjson.org) by sending `Accept: application/x-ndjson`.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`query` | Find stations by name using [`db-stations-autocomplete@2`](https://github.com/derhuerst/db-stations-autocomplete/tree/2.2.0). | string | –
+`limit` | *If `query` is used:* Return at most `n` stations. | number | `3`
+`fuzzy` | *If `query` is used:* Find stations despite typos. | boolean | `false`
+`completion` | *If `query` is used:* Autocomplete stations. | boolean | `true`
+
+### Examples
+
+```shell
+# autocomplete using db-stations-autocomplete
+curl 'https://v5.db.transport.rest/stations?query=dammt' -s | jq
+```
+
+```js
+{
+	"8002548": {
+		"id": "8002548",
+		"relevance": 0.8572361756428573,
+		"score": 9.175313823998414,
+		"weight": 1212,
+		"type": "station",
+		"ril100": "ADF",
+		"name": "Hamburg Dammtor",
+		"location": {
+			"type": "location",
+			"latitude": 53.560751,
+			"longitude": 9.989566
+		},
+		"operator": {
+			"type": "operator",
+			"id": "hamburger-verkehrsverbund-gmbh",
+			"name": "BWVI"
+		},
+		"address": {
+			"city": "Hamburg",
+			"zipcode": "20354",
+			"street": "Dag-Hammarskjöld-Platz 15"
+		},
+		// …
+	},
+	// …
+}
+```
+
+```shell
+# filter db-stations by `hasParking` property
+curl 'https://v5.db.transport.rest/stations?hasParking=true' -s | jq
+```
+
+```js
+{
+	"8000001": {
+		"type": "station",
+		"id": "8000001",
+		"ril100": "KA",
+		"name": "Aachen Hbf",
+		"weight": 653.75,
+		"location": { /* … */ },
+		"operator": { /* … */ },
+		"address": { /* … */ },
+		// …
+	},
+	// …
+}
+```
+
+```shell
+# filter db-stations by `hasDBLounge` property, get newline-delimited JSON
+curl 'https://v5.db.transport.rest/stations?hasDBLounge=true' -H 'accept: application/x-ndjson' -s | jq
+```
+
+
+## `GET /stations/:id`
+
+Returns a stop/station from [`db-stations`](https://npmjs.com/package/db-stations).
+
+### Query Parameters
+
+### Example
+
+```shell
+# lookup Halle (Saale) Hbf
+curl 'https://v5.db.transport.rest/stations/8010159' -s | jq
+curl 'https://v5.db.transport.rest/stations/LH' -s | jq # RIL100/DS100
+curl 'https://v5.db.transport.rest/stations/LHG' -s | jq # RIL100/DS100
+```
+
+```js
+{
+	"type": "station",
+	"id": "8010159",
+	"additionalIds": ["8098159"],
+	"ril100": "LH",
+	"nr": 2498,
+	"name": "Halle (Saale) Hbf",
+	"weight": 815.6,
+	"location": { /* … */ },
+	"operator": { /* … */ },
+	"address": { /* … */ },
+	"ril100Identifiers": [
+		{
+			"rilIdentifier": "LH",
+			// …
+		},
+		// …
+	],
+	// …
+}
+```
+
+
+## `GET /radar`
+
+Uses [`hafasClient.radar()`](https://github.com/public-transport/hafas-client/blob/5/docs/radar.md) to **find all vehicles currently in an area**, as well as their movements.
+
+### Query Parameters
+
+parameter | description | type | default value
+----------|-------------|------|--------------
+`north` | **Required.** Northern latitude. | number | –
+`west` | **Required.** Western longitude. | number | –
+`south` | **Required.** Southern latitude. | number | –
+`east` | **Required.** Eastern longitude. | number | –
+`results` | Max. number of vehicles. | integer | `256`
+`duration` | Compute frames for the next `n` seconds. | integer | `30`
+`frames` | Number of frames to compute. | integer | `3`
+`polylines` | Fetch & parse a geographic shape for the movement of each vehicle? | boolean | `true`
+`language` | Language of the results. | string | `en`
+`pretty` | Pretty-print JSON responses? | boolean | `true`
+
+### Example
+
+```shell
+bbox='north=53.555&west=9.989&south=53.55&east=10.001'
+curl "https://v5.db.transport.rest/radar?$bbox&results=10" -s | jq
+```
+
+
+## Date/Time Parameters
+
+Possible formats:
+
+- anything that [`parse-human-relative-time`](https://npmjs.com/package/parse-human-relative-time) can parse (e.g. `tomorrow 2pm`)
+- [ISO 8601 date/time string](https://en.wikipedia.org/wiki/ISO_8601#Combined_date_and_time_representations) (e.g. `2020-04-26T22:43+02:00`)
+- [UNIX timestamp](https://en.wikipedia.org/wiki/Unix_time) (e.g. `1587933780`)
--- a/docs/getting-started.md
+++ b/docs/getting-started.md
@ -1,4 +1,4 @@
-# Getting Started with `v6.db.transport.rest`
+# Getting Started with `v5.db.transport.rest`

 Let's walk through the **requests that are necessary to implement a typical basic transit app**.

@ -11,7 +11,7 @@ The following code snippets use [`curl`](https://curl.haxx.se) (a versatile comm
 The `/locations?query=…` route allows you to query stops, points of interest (POIs) & addresses. We're only interested in stops though, so we filter using `poi=false&addresses=false`:

 ```shell
-curl 'https://v6.db.transport.rest/locations?poi=false&addresses=false&query=südkreuz' -s | jq
+curl 'https://v5.db.transport.rest/locations?poi=false&addresses=false&query=südkreuz' -s | jq
 ```

 ```js
@ -78,7 +78,7 @@ curl 'https://v6.db.transport.rest/locations?poi=false&addresses=false&query=sü
 Let's fetch 5 of the next departures at *Berlin Südkreuz* (which has the ID `8011113`):

 ```shell
-curl 'https://v6.db.transport.rest/stops/8011113/departures?results=5' -s | jq
+curl 'https://v5.db.transport.rest/stops/8011113/departures?results=5' -s | jq
 ```

 ```js
@ -160,7 +160,7 @@ We call a connection from A to B – at a specific date & time, made up of secti
 Let's fetch 2 journeys from `8011113` (*Berlin Südkreuz*) to `8010159` (*Halle (Saale)Hbf*), departing tomorrow at 2pm (at the time of writing this).

 ```shell
-curl 'https://v6.db.transport.rest/journeys?from=8011113&to=8010159&departure=tomorrow+2pm&results=2' -s | jq
+curl 'https://v5.db.transport.rest/journeys?from=8011113&to=8010159&departure=tomorrow+2pm&results=2' -s | jq
 ```

 ```js
@ -316,4 +316,4 @@ Note that `departure` includes the `departureDelay`, and `arrival` includes the

 ### 4. more features

-These are the basics. Check the full [API docs](api.md) for all features or use the [OpenAPI playground](https://petstore.swagger.io/?url=https%3A%2F%2Fv6.db.transport.rest%2F.well-known%2Fservice-desc%0A) or explore the API!
+These are the basics. Check the full [API docs](api.md) for all features or use the [OpenAPI playground](https://petstore.swagger.io/?url=https%3A%2F%2Fv5.db.transport.rest%2F.well-known%2Fservice-desc%0A) or explore the API!
--- a/docs/readme.md
+++ b/docs/readme.md
@ -1,28 +1,24 @@
-# `v6.db.transport.rest` documentation
+# `v5.db.transport.rest` documentation

-[`v6.db.transport.rest`](https://v6.db.transport.rest/) is a [REST API](https://restfulapi.net) for the public transportation system in Germany.
+[`v5.db.transport.rest`](https://v5.db.transport.rest/) is a [REST API](https://restfulapi.net) for the public transportation system in Germany.

-[![API status](https://badgen.net/uptime-robot/status/m793274556-25c5e9bbab0297d91cda7134)](https://stats.uptimerobot.com/57wNLs39M/793274556)
+[![API status](https://badgen.net/uptime-robot/status/m784879516-8a977fa91b975fc3884a9857)](https://stats.uptimerobot.com/57wNLs39M/784879516)

-Because it wraps [an API](https://github.com/public-transport/hafas-client/blob/6/readme.md#background) of [Deutsche Bahn](https://de.wikipedia.org/wiki/Deutsche_Bahn), it **includes most of the long-distance and regional traffic, as well as some international trains and local buses**. Essentially, it returns whatever data the [*DB Navigator* app](https://www.bahn.de/p/view/service/mobile/db-navigator.shtml) shows*, **including realtime delays and disruptions**.
-
-*When comparing results from this API to what the DB Navigator app shows there might be occasional differences due to them utilizing different, not 100% identical backends.*
+Because it wraps [an API](https://github.com/public-transport/hafas-client/blob/master/readme.md#background) of [Deutsche Bahn](https://de.wikipedia.org/wiki/Deutsche_Bahn), it **includes most of the long-distance and regional traffic, as well as some international trains and local buses**. Essentially, it returns whatever data the [*DB Navigator* app](https://www.bahn.de/p/view/service/mobile/db-navigator.shtml) shows, **including realtime delays and disruptions**.

 - [Getting Started](getting-started.md)
- [API documentation](api.md) (run `npm run build` to generate)
- [OpenAPI playground with API documentation](https://petstore.swagger.io/?url=https%3A%2F%2Fv6.db.transport.rest%2F.well-known%2Fservice-desc%0A)
+- [API documentation](api.md)
+- [OpenAPI playground](https://petstore.swagger.io/?url=https%3A%2F%2Fv5.db.transport.rest%2F.well-known%2Fservice-desc%0A)

 ## Why use this API?

 ### Realtime Data

-This API returns realtime data whenever it is upstream. The [API for DB's mobile app](https://github.com/public-transport/hafas-client/blob/6/p/db/readme.md) provides it.
-
-*Note: Different endpoints might remove realtime data like delays and cancellations at different times, i.e. after a journey's arrival.*
+This API returns realtime data whenever its upstream, the [API for DB's mobile app](https://github.com/public-transport/hafas-client/blob/33d7d30acf235c54887c6459a15fe581982c6a19/p/db/readme.md), provides it.

 ### No API Key

-You can just use the API without authentication. There's a [rate limit](https://apisyouwonthate.com/blog/what-is-api-rate-limiting-all-about) of 100 requests/minute set up.
+You can just use the API without authentication. There's a [rate limit](https://apisyouwonthate.com/blog/what-is-api-rate-limiting-all-about) of 100 requests/minute (burst 150 requests/minute) set up.

 ### CORS

--- a/index.js
+++ b/index.js
@ -1,4 +1,6 @@
-import {api, config} from './api.js'
+'use strict'
+
+const {api, config} = require('./api')

 api.listen(config.port, (err) => {
 	const {logger} = api.locals
--- a/lib/db-stations.js
+++ b/lib/db-stations.js
@ -1,17 +1,15 @@
-import {createRequire} from 'node:module'
-const require = createRequire(import.meta.url)
+'use strict'

-import {statSync} from 'node:fs'
-import {readFullStations} from 'db-stations'
+const {statSync} = require('fs')
+const {full: readRawStations} = require('db-stations')

 // We don't have access to the publish date+time of the npm package,
 // so we use the ctime of db-stations/full.ndjson as an approximation.
-// Also require() doesn't make much sense in ES Modules.
 // todo: this is brittle, find a better way, e.g. a build script
 const timeModified = statSync(require.resolve('db-stations/full.ndjson')).ctime

 const pStations = new Promise((resolve, reject) => {
-	let raw = readFullStations()
+	let raw = readRawStations()
 	raw.once('error', reject)

 	let data = Object.create(null)
@ -39,6 +37,4 @@ pStations.catch((err) => {
 	process.exit(1) // todo: is this appropriate?
 })

-export {
-	pStations,
-}
+module.exports = pStations
--- a/lib/loyalty-cards.js
+++ b/lib/loyalty-cards.js
@ -1,4 +1,4 @@
-import {data as cards} from 'hafas-client/p/db/loyalty-cards.js'
+const {data: cards} = require('hafas-client/p/db/loyalty-cards')

 const typesByName = new Map([
 	// https://github.com/public-transport/hafas-client/blob/68ecd7c5e976dd2f51c5c64a81600e7e181a8996/p/db/loyalty-cards.js#L6-L11
@ -29,8 +29,8 @@ const loyaltyCardParser = {
 	parse: parseLoyaltyCard,
 }

-export {
-	cards as loyaltyCards,
+module.exports = {
+	loyaltyCards: cards,
 	parseLoyaltyCard,
 	loyaltyCardParser,
 }
--- a/license.md
+++ b/license.md
@ -1,4 +1,4 @@
-Copyright (c) 2024, Jannis R
+Copyright (c) 2022, Jannis R

 Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@ -2,21 +2,10 @@
 	"private": true,
 	"name": "db-rest",
 	"description": "A clean REST API wrapping around the Deutsche Bahn API.",
-	"version": "6.0.5",
-	"type": "module",
-	"bin": {
-		"db-rest": "./index.js"
-	},
+	"version": "5.0.2",
 	"main": "index.js",
-	"files": [
-		"docs",
-		"lib",
-		"routes",
-		"api.js",
-		"index.js"
-	],
 	"author": "Jannis R <mail@jannisr.de>",
-	"homepage": "https://github.com/derhuerst/db-rest/tree/6",
+	"homepage": "https://github.com/derhuerst/db-rest/tree/5",
 	"repository": "derhuerst/db-rest",
 	"bugs": "https://github.com/derhuerst/db-rest/issues",
 	"license": "ISC",
@ -30,36 +19,36 @@
 		"db"
 	],
 	"engines": {
-		"node": ">=18"
+		"node": ">=10"
 	},
 	"dependencies": {
-		"cached-hafas-client": "^5.0.1",
+		"cached-hafas-client": "^4.0.4",
 		"cli-native": "^1.0.0",
-		"db-hafas": "^6.0.0",
-		"db-stations": "^5.0.0",
-		"db-stations-autocomplete": "^4.0.0",
+		"db-hafas": "^5.0.2",
+		"db-stations": "^3.0.0",
+		"db-stations-autocomplete": "^2.2.0",
 		"etag": "^1.8.1",
 		"hafas-client-health-check": "^2.1.1",
-		"hafas-rest-api": "^5.1.0",
+		"hafas-rest-api": "^3.8.0",
 		"ioredis": "^5.0.6",
-		"serve-buffer": "^3.0.3",
+		"serve-buffer": "^2.0.0",
 		"serve-static": "^1.14.1"
 	},
 	"devDependencies": {
-		"@derhuerst/technical-docs-cli": "^1.5.0",
-		"axios": "^1.6.1",
+		"@derhuerst/technical-docs-cli": "^1.1.0",
+		"axios": "^0.26.1",
 		"eslint": "^8.12.0",
-		"get-port": "^6.1.2",
+		"get-port": "^5.1.1",
 		"ndjson": "^2.0.0",
-		"pino-pretty": "^9.1.1",
-		"tap-min": "^3.0.0",
+		"pino-pretty": "^4.0.0",
+		"tap-min": "^2.0.0",
 		"tape": "^5.5.2"
 	},
 	"scripts": {
-		"build": "REDIS_URL='' ./build/index.js",
+		"docs": "node api-docs.js >docs/api.md && build-technical-doc --syntax-stylesheet-url /syntax.css <docs/readme.md >docs/index.html && build-technical-doc --syntax-stylesheet-url /syntax.css <docs/getting-started.md >docs/getting-started.html && build-technical-doc --syntax-stylesheet-url /syntax.css <docs/api.md >docs/api.html && build-technical-doc --syntax-stylesheet github >docs/syntax.css",
+		"build": "npm run docs",
 		"start": "node index.js",
 		"lint": "eslint .",
 		"test": "node test/index.js | tap-min"
-	},
-	"goatCounterUrl": "https://37462fdee48390778258.goatcounter.com/count"
+	}
 }
--- a/readme.md
+++ b/readme.md
@ -1,12 +1,12 @@
 # db-rest

-**A clean REST API wrapping around the [Deutsche Bahn HAFAS API](https://github.com/public-transport/db-hafas#db-hafas).** It is deployed at [`v6.db.transport.rest`](https://v6.db.transport.rest/).
+**A clean REST API wrapping around the [Deutsche Bahn HAFAS API](https://github.com/public-transport/db-hafas#db-hafas).** It is deployed at [`v5.db.transport.rest`](https://v5.db.transport.rest/).

 [**API Documentation**](docs/readme.md)

 ![db-rest architecture diagram](architecture.svg)

-[![API status](https://badgen.net/uptime-robot/status/m793274556-25c5e9bbab0297d91cda7134)](https://stats.uptimerobot.com/57wNLs39M/793274556)
+[![API status](https://badgen.net/uptime-robot/status/m784879516-8a977fa91b975fc3884a9857)](https://stats.uptimerobot.com/57wNLs39M/784879516)
 [![dependency status](https://img.shields.io/david/derhuerst/db-rest.svg)](https://david-dm.org/derhuerst/db-rest)
 ![ISC-licensed](https://img.shields.io/github/license/derhuerst/db-rest.svg)
 [![support me via GitHub Sponsors](https://img.shields.io/badge/support%20me-donate-fa7664.svg)](https://github.com/sponsors/derhuerst)
@ -15,16 +15,14 @@

 ## installing & running

-### access to Redis
-
-It is recommended that you let `bvg-rest` cache HAFAS responses within a [Redis](https://redis.io/) cache. To use this feature, set `$REDIS_URL` (e.g. to `redis://localhost:6379/1` when running Redis locally).
+`db-rest` expects a [Redis](https://redis.io/) server running on `127.0.0.1:6379` (default port), but you can set the `REDIS_URL` environment variable to change this.

 ### via Docker

-A Docker image [is available as `docker.io/derhuerst/db-rest:6`](https://hub.docker.com/r/docker.io/derhuerst/db-rest:6).
+A Docker image [is available as `derhuerst/db-rest:5`](https://hub.docker.com/r/derhuerst/db-rest:5).

 ```shell
-docker run -d -p 3000:3000 docker.io/derhuerst/db-rest:6
+docker run -d -p 3000:3000 derhuerst/db-rest:5
 ```

 *Note:* The Docker image does not contain the Redis server.
@ -34,11 +32,8 @@ docker run -d -p 3000:3000 docker.io/derhuerst/db-rest:6
 ```shell
 git clone https://github.com/derhuerst/db-rest.git
 cd db-rest
-git checkout 6
-npm install
-
-export HOSTNAME='my-vbb-rest-api.example.org'
-npm run build
+git checkout 5
+npm install --production

 redis-server &
 npm start
@ -49,7 +44,6 @@ To keep the API running permanently, use tools like [`forever`](https://github.c

 ## Related Projects

- [`DB-Adapter-v6`](https://github.com/olech2412/DB-Adapter-v6) – A Java API client for `db-rest`.
 - [`vbb-rest`](https://github.com/derhuerst/vbb-rest) – A clean REST API wrapping around the VBB API.
 - [`bvg-rest`](https://github.com/derhuerst/bvg-rest) – A clean REST API wrapping around the BVG API.
 - [`hvv-rest`](https://github.com/derhuerst/hvv-rest) – A clean REST API wrapping around the HVV API.
--- a/routes/station.js
+++ b/routes/station.js
@ -1,4 +1,6 @@
-import {pStations} from '../lib/db-stations.js'
+'use strict'
+
+const pStations = require('../lib/db-stations')

 const err404 = (msg) => {
 	const err = new Error(msg)
@ -50,12 +52,9 @@ Returns a stop/station from [\`db-stations@3\`](https://github.com/derhuerst/db-
 						},
 					},
 				},
-				// todo: non-2xx response
 			},
 		},
 	},
 }

-export {
-	stationRoute as route,
-}
+module.exports = stationRoute
--- a/routes/stations.js
+++ b/routes/stations.js
@ -1,10 +1,11 @@
-import computeEtag from 'etag'
-import serveBuffer from 'serve-buffer'
-import {autocomplete} from 'db-stations-autocomplete'
-import _cliNative from 'cli-native'
-const {to: parse} = _cliNative
-import {createFilter} from 'db-stations/create-filter.js'
-import {pStations} from '../lib/db-stations.js'
+'use strict'
+
+const computeEtag = require('etag')
+const serveBuffer = require('serve-buffer')
+const autocomplete = require('db-stations-autocomplete')
+const parse = require('cli-native').to
+const createFilter = require('db-stations/create-filter')
+let pAllStations = require('../lib/db-stations')

 const JSON_MIME = 'application/json'
 const NDJSON_MIME = 'application/x-ndjson'
@ -23,7 +24,7 @@ const toNdjsonBuf = (data) => {
 	return Buffer.concat(chunks, bytes)
 }

-const pAllStations = pStations.then(({data, timeModified}) => {
+pAllStations = pAllStations.then(({data, timeModified}) => {
 	const asJson = Buffer.from(JSON.stringify(data), 'utf8')
 	const asNdjson = toNdjsonBuf(data)
 	return {
@ -165,14 +166,8 @@ Instead of receiving a JSON response, you can request [newline-delimited JSON](h
 							},
 							// todo: example(s)
 						},
-						'application/x-ndjson': {
-							schema: {
-								type: 'string',
-							},
-						},
 					},
 				},
-				// todo: non-2xx response
 			},
 		},
 	},
@ -201,6 +196,4 @@ stationsRoute.queryParameters = {
 	},
 }

-export {
-	stationsRoute as route,
-}
+module.exports = stationsRoute
--- a/test/index.js
+++ b/test/index.js
@ -1,9 +1,10 @@
-import tape from 'tape'
-import _ndjson from 'ndjson'
-const {parse: ndjsonParser} = _ndjson
-import {loyaltyCards} from '../lib/loyalty-cards.js'
-import {fetchWithTestApi} from './util.js'
-import {pStations as pAllStations} from '../lib/db-stations.js'
+'use strict'
+
+const tape = require('tape')
+const {parse: ndjsonParser} = require('ndjson')
+const {loyaltyCards} = require('../lib/loyalty-cards')
+const {fetchWithTestApi} = require('./util')
+const pAllStations = require('../lib/db-stations')

 const NO_JOURNEYS = {
 	// todo?
@ -75,11 +76,11 @@ tape.test('/stations works', async (t) => {
 	}
 })

-tape.test('/stations?query=frankfurt%20ha works', async (t) => {
+tape.test('/stations?query=frankf works', async (t) => {
 	const FRANKFURT_MAIN_HBF = '8000105'

 	{
-		const {headers, data} = await fetchWithTestApi({}, {}, '/stations?query=frankfurt%20ha', {
+		const {headers, data} = await fetchWithTestApi({}, {}, '/stations?query=frankf', {
 			headers: {
 				'accept': 'application/json',
 			},
@ -92,7 +93,7 @@ tape.test('/stations?query=frankfurt%20ha works', async (t) => {
 	}

 	{
-		const {headers, data} = await fetchWithTestApi({}, {}, '/stations?query=frankfurt%20ha', {
+		const {headers, data} = await fetchWithTestApi({}, {}, '/stations?query=frankf', {
 			headers: {
 				'accept': 'application/x-ndjson',
 			},
@ -105,6 +106,6 @@ tape.test('/stations?query=frankfurt%20ha works', async (t) => {
 		for await (const station of parser) stations.push(station)

 		t.ok(stations.find(s => s.id === FRANKFURT_MAIN_HBF))
-		t.ok(stations.length > 0)
+		t.ok(Object.keys(stations).length > 0)
 	}
 })
--- a/test/util.js
+++ b/test/util.js
@ -1,9 +1,12 @@
-import {createHafasRestApi} from 'hafas-rest-api'
-import getPort from 'get-port'
-import {createServer} from 'node:http'
-import {promisify} from 'node:util'
-import axios from 'axios'
-import {config, hafas as unmockedHafas} from '../api.js'
+'use strict'
+
+const createApi = require('hafas-rest-api')
+const getPort = require('get-port')
+const {createServer} = require('http')
+const {promisify} = require('util')
+const axios = require('axios')
+const pkg = require('../package.json')
+const {config, hafas: unmockedHafas} = require('../api')

 // adapted from https://github.com/public-transport/hafas-rest-api/blob/60335eacd8332d7f448da875a7498dd97934e360/test/util.js#L40-L77
 const createTestApi = async (mocks, cfg) => {
@ -21,7 +24,7 @@ const createTestApi = async (mocks, cfg) => {
 		...cfg,
 	}

-	const api = await createHafasRestApi(mockedHafas, cfg, () => {})
+	const api = createApi(mockedHafas, cfg, () => {})
 	const server = createServer(api)

 	const port = await getPort()
@ -47,7 +50,7 @@ const fetchWithTestApi = async (mocks, cfg, path, opt = {}) => {
 	return res
 }

-export {
+module.exports = {
 	createTestApi,
 	fetchWithTestApi,
 }