db-vendo-client/docs/journeys.md

# `journeys(from, to, [opt])`

`from` and `to` each must be in one of these formats:

```js
// a station ID, in a format compatible to the profile you use
'900000013102'

// an FPTF `station` object
{
	type: 'station',
	id: '900000013102',
	name: 'foo station',
	location: {
		type: 'location',
		latitude: 1.23,
		longitude: 3.21
	}
}

// a point of interest, which is an FPTF `location` object
{
	type: 'location',
	id: '123',
	name: 'foo restaurant',
	latitude: 1.23,
	longitude: 3.21
}

// an address, which is an FTPF `location` object
{
	type: 'location',
	address: 'foo street 1',
	latitude: 1.23,
	longitude: 3.21
}
```

With `opt`, you can override the default options, which look like this:

```js
{
	when: new Date(),
	results: 5, // how many journeys?
	via: null, // let journeys pass this station
	passedStations: false, // return stations on the way?
	transfers: 5, // maximum of 5 transfers
	transferTime: 0, // minimum time for a single transfer in minutes
	accessibility: 'none', // 'none', 'partial' or 'complete'
	bike: false, // only bike-friendly journeys
	products: {
		suburban: true,
		subway: true,
		tram: true,
		bus: true,
		ferry: true,
		express: true,
		regional: true
	},
	tickets: false // return tickets? only available with some profiles
}
```

## Response

*Note:* As stated in the [*Friendly Public Transport Format* `1.0.1`](https://github.com/public-transport/friendly-public-transport-format/tree/1.0.1), the returned `departure` and `arrival` times include the current delay. The `departureDelay`/`arrivalDelay` fields express how much they differ from the schedule.

As an example, we're going to use the [VBB profile](../p/vbb):

```js
const createClient = require('hafas-client')
const vbbProfile = require('hafas-client/p/vbb')

const client = createClient(vbbProfile)

// Hauptbahnhof to Heinrich-Heine-Str.
client.journeys('900000003201', '900000100008', {
	results: 1,
	passedStations: true
})
.then(console.log)
.catch(console.error)
```

The response may look like this:

```js
[ {
	legs: [ {
		id: '1|31041|35|86|17122017',
		origin: {
			type: 'station',
			id: '900000003201',
			name: 'S+U Berlin Hauptbahnhof',
			location: {
				type: 'location',
				latitude: 52.52585,
				longitude: 13.368928
			},
			products: {
				suburban: true,
				subway: true,
				tram: true,
				bus: true,
				ferry: false,
				express: true,
				regional: true
			}
		},
		departure: '2017-12-17T19:07:00.000+01:00',
		departurePlatform: '16',
		destination: {
			type: 'station',
			id: '900000024101',
			name: 'S Charlottenburg',
			location: {
				type: 'location',
				latitude: 52.504806,
				longitude: 13.303846
			},
			products: {
				suburban: true,
				subway: false,
				tram: false,
				bus: true,
				ferry: false,
				express: false,
				regional: true
			}
		},
		arrival: '2017-12-17T19:47:00.000+01:00',
		arrivalPlatform: '8',
		arrivalDelay: 30,
		line: {
			type: 'line',
			id: '16845',
			name: 'S7',
			public: true,
			mode: 'train',
			product: 'suburban',
			symbol: 'S',
			nr: 7,
			metro: false,
			express: false,
			night: false,
			productCode: 0
		},
		direction: 'S Potsdam Hauptbahnhof',
		passed: [ {
			station: {
				type: 'station',
				id: '900000003201',
				name: 'S+U Berlin Hauptbahnhof',
				location: { /* … */ },
				products: { /* … */ }
			},
			arrival: null,
			departure: null,
			cancelled: true
		}, {
			station: {
				type: 'station',
				id: '900000003102',
				name: 'S Bellevue',
				location: { /* … */ },
				products: { /* … */ }
			},
			arrival: '2017-12-17T19:09:00.000+01:00',
			departure: '2017-12-17T19:09:00.000+01:00'
		}, /* … */ {
			station: {
				type: 'station',
				id: '900000024101',
				name: 'S Charlottenburg',
				location: { /* … */ },
				products: { /* … */ }
			},
			arrival: '2017-12-17T19:17:00.000+01:00',
			departure: '2017-12-17T19:17:00.000+01:00'
		} ]
	} ],
	origin: {
		type: 'station',
		id: '900000003201',
		name: 'S+U Berlin Hauptbahnhof',
		location: { /* … */ },
		products: { /* … */ }
	},
	departure: '2017-12-17T19:07:00.000+01:00',
	destination: {
		type: 'station',
		id: '900000024101',
		name: 'S Charlottenburg',
		location: { /* … */ },
		products: { /* … */ }
	},
	arrival: '2017-12-17T19:47:00.000+01:00',
	arrivalDelay: 30
} ]
```

Some [profiles](../p) are able to parse the ticket information, if returned by the API. For example, if you pass `tickets: true` with the [VBB profile](../p/vbb), each `journey` will have a tickets array that looks like this:

```js
[ {
	name: 'Berlin Tarifgebiet A-B: Einzelfahrausweis – Regeltarif',
	price: 2.8,
	tariff: 'Berlin',
	coverage: 'AB',
	variant: 'adult',
	amount: 1
}, {
	name: 'Berlin Tarifgebiet A-B: Einzelfahrausweis – Ermäßigungstarif',
	price: 1.7,
	tariff: 'Berlin',
	coverage: 'AB',
	variant: 'reduced',
	amount: 1,
	reduced: true
}, /* … */ {
	name: 'Berlin Tarifgebiet A-B: Tageskarte – Ermäßigungstarif',
	price: 4.7,
	tariff: 'Berlin',
	coverage: 'AB',
	variant: '1 day, reduced',
	amount: 1,
	reduced: true,
	fullDay: true
}, /* … */ {
	name: 'Berlin Tarifgebiet A-B: 4-Fahrten-Karte – Regeltarif',
	price: 9,
	tariff: 'Berlin',
	coverage: 'AB',
	variant: '4x adult',
	amount: 4
} ]
```

If a journey leg has been cancelled, a `cancelled: true` will be added. Also, `departure`/`departureDelay`/`departurePlatform` and `arrival`/`arrivalDelay`/`arrivalPlatform` will be `null`.