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68 lines
2.4 KiB
Markdown
68 lines
2.4 KiB
Markdown
# API documentation
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- [`journeys(from, to, [opt])`](journeys.md) – get journeys between locations
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- [`refreshJourney(refreshToken, [opt])`](refresh-journey.md) – fetch up-to-date/more details of a `journey`
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- [`trip(id, lineName, [opt])`](trip.md) – get details for a trip
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- [`departures(station, [opt])`](departures.md) – query the next departures at a station
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- [`arrivals(station, [opt])`](arrivals.md) – query the next arrivals at a station
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- [`locations(query, [opt])`](locations.md) – find stations, POIs and addresses
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- [`station(id, [opt])`](station.md) – get details about a station
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- [`nearby(location, [opt])`](nearby.md) – show stations & POIs around
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- [`radar(north, west, south, east, [opt])`](radar.md) – find all vehicles currently in a certain area
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- [`reachableFrom(address, [opt])`](reachable-from.md) – get all stations reachable from an address within `n` minutes
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## Throttling requests
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There's opt-in support for throttling requests to the endpoint.
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```js
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const createThrottledClient = require('hafas-client/throttle')
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const dbProfile = require('hafas-client/p/db')
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// create a throttled HAFAS client with Deutsche Bahn profile
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const client = createThrottledClient(dbProfile, 'my-awesome-program')
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// Berlin Jungfernheide to München Hbf
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client.journeys('8011167', '8000261', {results: 1})
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.then(console.log)
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.catch(console.error)
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```
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You can pass custom values for the nr of requests (`limit`) per interval into `createThrottledClient`:
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```js
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// 2 requests per second
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const client = createThrottledClient(dbProfile, 'my-awesome-program', 2, 1000)
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```
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## Retrying failed requests
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There's opt-in support for retrying failed requests to the endpoint.
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```js
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const createClientWithRetry = require('hafas-client/retry')
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const dbProfile = require('hafas-client/p/db')
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// create a client with Deutsche Bahn profile that will retry on HAFAS errors
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const client = createClientWithRetry(dbProfile, 'my-awesome-program')
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// Berlin Jungfernheide to München Hbf
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client.journeys('8011167', '8000261', {results: 1})
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.then(console.log)
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.catch(console.error)
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```
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You can pass custom options into `createClientWithRetry`. They will be passed into [`retry`](https://github.com/tim-kos/node-retry#tutorial).
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```js
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// retry 2 times, after 10 seconds & 30 seconds
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const client = createClientWithRetry(dbProfile, 'my-awesome-program', {
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retries: 2,
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minTimeout: 10 * 1000,
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factor: 3
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})
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```
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## Writing a profile
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Check [the guide](writing-a-profile.md).
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