trv-api-subscriber

The Swedish Transport Administration (Trafikverket, or just TRV) provides an open API for trainrunning data (and road realated data). If attribute sseurl="true" is added to the query tag, the API response will include an url for subscribing to new events through server send events (SSE).

Get your own key here

Support for API JVG (B2B endpoint)

This plugin supports TRV´s B2B-endpoints. You can define custom headers as arguments. The bearer-token from first request is forwarded in the request to the SSE-endpoint.

Example usage:

// reference to module
const {SseClient} = require('trv-api-subscriber');

// TRV Query
const tposQuery = `<REQUEST>
<LOGIN authenticationkey="${openApiKey}"/>
  <QUERY objecttype="TrainPosition" namespace="järnväg.trafikinfo" schemaversion="1.1" sseurl="true">
    <FILTER>
      <GT name="TimeStamp" value="${currentDateTimeIso}"/>    
    </FILTER>
    
  </QUERY>
</REQUEST>
`;

new SseClient(openApiUrl, tposQuery, (data) => {
    console.log(data);
});