Getting Started with v5.db.transport.rest

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

Note: To properly & securely handle user input containing URL-unsafe characters, always URL-encode your query parameters!

The following code snippets use curl (a versatile command line HTTP tool) and jq (the command line swiss army knife for processing JSON).

1. search for stops

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:

curl 'https://v5.db.transport.rest/locations?poi=false&addresses=false&query=südkreuz' -s | jq
[
	{
		"type": "stop",
		"id": "8011113",
		"name": "Berlin Südkreuz",
		"location": {
			"type": "location",
			"id": "8011113",
			"latitude": 52.47623,
			"longitude": 13.365863
		},
		"products": {
			"nationalExpress": true,
			"national": true,
			// …
		}
	},
	{
		"type": "stop",
		"id": "731654",
		"name": "Südkreuz Bahnhof (S), Berlin",
		"location": {
			"type": "location",
			"id": "731654",
			"latitude": 52.476265,
			"longitude": 13.3642
		},
		"products": {
			"nationalExpress": true,
			"national": true,
			"regionalExp": true,
			"regional": true,
			"suburban": true,
			"bus": true,
			"ferry": false,
			"subway": false,
			"tram": false,
			"taxi": false
		}
	},
	{
		"type": "stop",
		"id": "727256",
		"name": "Südkreuz Bahnhof (S)/Ostseite, Berlin",
		"location": {
			"type": "location",
			"id": "727256",
			"latitude": 52.47436,
			"longitude": 13.366843
		},
		"products": {
			// …
		}
	},
	// …
]

2. fetch departures at a stop

Let's fetch 5 of the next departures at Berlin Südkreuz (which has the ID 8011113):

curl 'https://v5.db.transport.rest/stops/8011113/departures?results=5' -s | jq
[
	{
		"tripId": "1|1168945|24|80|1052020",
		"direction": "Schöneberg, Reichartstr.",
		"line": {
			"type": "line",
			"id": "5-vbbbvb-248",
			"name": "Bus 248",
			"mode": "bus",
			"product": "bus",
			// …
		},

		"when": "2020-05-01T18:39:00+02:00",
		"plannedWhen": "2020-05-01T18:38:00+02:00",
		"delay": 60,
		"platform": null,
		"plannedPlatform": null,

		"stop": {
			"type": "stop",
			"id": "727256",
			"name": "Südkreuz Bahnhof (S)/Ostseite, Berlin",
			"location": { /* … */ },
			"products": { /* … */ },
			"station": {
				"type": "station",
				"id": "8011113",
				"name": "Berlin Südkreuz",
				"location": { /* … */ },
				"products": { /* … */ },
			}
		},

		"remarks": [],
	},
	// …
	{
		"tripId": "1|322308|0|80|1052020",
		"direction": "Lutherstadt Wittenberg Hbf",
		"line": {
			"type": "line",
			"id": "re-3",
			"name": "RE 3",
			"mode": "train",
			"product": "regional",
			// …
		},

		"when": "2020-05-01T18:40:00+02:00",
		"plannedWhen": "2020-05-01T18:41:00+02:00",
		"delay": -60,
		"platform": "6",
		"plannedPlatform": "6",

		"stop": {
			"type": "stop",
			"id": "8011113",
			"name": "Berlin Südkreuz",
			"location": { /* … */ },
			"products": { /* … */ },
		},

		"remarks": [ /* … */ ],
	},
	// …
]

Note that when includes the delay, and plannedWhen does not.

3. fetch journeys from A to B

We call a connection from A to B – at a specific date & time, made up of sections on specific tripsjourney.

Let's fetch 2 journeys from 8011113 (Berlin Südkreuz) to 8010159 (Halle (Saale)Hbf), departing tomorrow at 2pm (at the time of writing this).

curl 'https://v5.db.transport.rest/journeys?from=8011113&to=8010159&departure=tomorrow+2pm&results=2' -s | jq
{
	"journeys": [{
		// 1st journey
		"type": "journey",
		"legs": [{
			// 1st leg
			"tripId": "1|310315|0|80|2052020",
			"direction": "München Hbf",
			"line": {
				"type": "line",
				"id": "ice-1601",
				"name": "ICE 1601",
				"mode": "train",
				"product": "nationalExpress",
				// …
			},

			"origin": {
				"type": "stop",
				"id": "8011113",
				"name": "Berlin Südkreuz",
				"location": { /* … */ },
				"products": { /* … */ },
			},
			"departure": "2020-05-02T14:37:00+02:00",
			"plannedDeparture": "2020-05-02T14:37:00+02:00",
			"departureDelay": null,
			"departurePlatform": "3",
			"plannedDeparturePlatform": "3"

			"destination": {
				"type": "stop",
				"id": "8010205",
				"name": "Leipzig Hbf",
				"location": { /* … */ },
				"products": { /* … */ },
			},
			"arrival": "2020-05-02T15:42:00+02:00",
			"plannedArrival": "2020-05-02T15:42:00+02:00",
			"arrivalDelay": null,
			"arrivalPlatform": "11",
			"plannedArrivalPlatform": "11",
			// …
		}, {
			// 2nd leg
			"walking": true,
			"distance": 116,

			"origin": {
				"type": "stop",
				"id": "8010205",
				"name": "Leipzig Hbf",
				"location": { /* … */ },
				"products": { /* … */ },
			},
			"departure": "2020-05-02T15:42:00+02:00",
			"plannedDeparture": "2020-05-02T15:42:00+02:00",
			"departureDelay": null,

			"destination": {
				"type": "stop",
				"id": "8098205",
				"name": "Leipzig Hbf (tief)",
				"location": { /* … */ },
				"products": { /* … */ },,
				"station": {
					"type": "station",
					"id": "8010205",
					"name": "Leipzig Hbf",
					"location": { /* … */ },
					"products": { /* … */ },
				}
			},
			"arrival": "2020-05-02T15:51:00+02:00",
			"plannedArrival": "2020-05-02T15:51:00+02:00",
			"arrivalDelay": null,
			// …
		}, {
			// 3rd leg
			"tripId": "1|334376|4|80|2052020",
			"direction": "Halle(Saale)Hbf",
			"line": {
				"type": "line",
				"id": "4-800486-5",
				"name": "S 5",
				"mode": "train",
				"product": "suburban",
				// …
			},

			"origin": {
				"type": "stop",
				"id": "8098205",
				"name": "Leipzig Hbf (tief)",
				"location": { /* … */ },
				"products": { /* … */ },,
				"station": {
					"type": "station",
					"id": "8010205",
					"name": "Leipzig Hbf",
					"location": { /* … */ },
					"products": { /* … */ },
				}
			},
			"departure": "2020-05-02T15:53:00+02:00",
			"plannedDeparture": "2020-05-02T15:53:00+02:00",
			"departureDelay": null,
			"departurePlatform": "2",
			"plannedDeparturePlatform": "2",

			"destination": {
				"type": "stop",
				"id": "8010159",
				"name": "Halle(Saale)Hbf",
				"location": { /* … */ },
				"products": { /* … */ },
			},
			"arrival": "2020-05-02T16:19:00+02:00",
			"plannedArrival": "2020-05-02T16:19:00+02:00",
			"arrivalDelay": null,
			"arrivalPlatform": "13",
			"plannedArrivalPlatform": "13",

			"cycle": {"min": 600, "max": 1800, "nr": 7},
			"alternatives": [
				{
					"tripId": "1|333647|0|80|2052020",
					"direction": "Halle(Saale)Hbf",
					"line": { /* … */ },
					"when": "2020-05-02T16:03:00+02:00",
					"plannedWhen": "2020-05-02T16:03:00+02:00",
					"delay": null,
				},
				// …
			],
			// …
		}],
	}, {
		// 2nd journey
		"type": "journey",
		"legs": [ /* … */ ],
		// …
	}],

	// …
}

Note that departure includes the departureDelay, and arrival includes the arrivalDelay. plannedDeparture and plannedArrival do not.

4. more features

These are the basics. Check the full API docs for all features!