Public Transit API Developer's Guide

Update a Section In a Transit Route

User Story

The user wants to retrieve an update on a route section identified by its context, ctx.

Note: This service is subject to Terms and Conditions as described in Supplier Terms for Developers Using HERE Location Platform APIs. To request access, contact us.

Request

The query parameter ctx represents the context of a section from the initial route which can be obtained from the Connections/Connection/Sections/Sec element of the response for the initial transit route request, but with the the optional section context parameter enabled, secCtx=1. For reference, use the request in Transit Route with the secCtx parameter.

Note: The query parameter ctx expires after a few minutes. You need to request a new Transit Route to obtain fresh values.
https://cit.transit.api.here.com/v3/sectionupdate.json
?app_id={YOUR_APP_ID}
&app_code={YOUR_APP_CODE}
&ctx={Context from one of 'Connections/Connection/Sections/Sec' elements in previous transit route response}
&graph=1

Response

The response to the request contains the following information blocks:
  • a single transit connection containing a single segment
  • the connection includes the following information:
    • departure time
    • real-time information about delays or disruptions
  • an operator who runs the service, including operator code, operator name and links to operator websites, if any.
{
  "Res": {
    "serviceUrl": "http://ip-10-124-93-102.eu-west-1.compute.internal:8080/hafasproxy/G1C",
    "Connections": {
      "context": "9be58603-0d79-498f-b2fe-bada805fce55",
      "Connection": [
        {
          "id": "R0001cb-C0",
          "duration": "PT12M",
          "transfers": 0,
          "Dep": {
            "time": "2017-04-11T22:02:00",
            "Stn": {
              "id": "418800333#104",
              "name": "Madison + Clinton",
              "x": -87.641041,
              "y": 41.881948
            }
          },
          "Arr": {
            "time": "2017-04-11T22:14:00",
            "Stn": {
              "id": "418800347#104",
              "name": "Madison + Western",
              "x": -87.686194,
              "y": 41.881238
            }
          },
          "Sections": {
            "Sec": [
              {
                "mode": 5,
                "id": "R0001cb-C0-S0",
                "context": "T1P-VCRBPTFATz1NYWRpc29uICsgQ2xpbnRvbkBMPTQxODgwMDMzM0BhPTEyOEAkQT0xQE89TWFkaXNvbiArIFdlc3Rlcm5ATD00MTg4MDAzNDdAYT0xMjhAJDIwMTcwNDExMjIwMiQyMDE3MDQxMTIyMTQkQnVzICAgMjAk",
                "Dep": {
                  "time": "2017-04-11T22:02:00",
                  "Stn": {
                    "id": "418800333#104",
                    "name": "Madison + Clinton",
                    "x": -87.641041,
                    "y": 41.881948
                  },
                  "Transport": {
                    "mode": 5,
                    "dir": "Austin",
                    "name": "20",
                    "At": {
                      "operator": "1gA48700",
                      "category": "Bus"
                    }
                  },
                  "Freq": {
                    "min": 14,
                    "max": 15
                  }
                },
                "Journey": {
                  "duration": "PT12M",
                  "intermediate": 0
                },
                "Arr": {
                  "time": "2017-04-11T22:14:00",
                  "Stn": {
                    "id": "418800347#104",
                    "name": "Madison + Western",
                    "x": -87.686194,
                    "y": 41.881238
                  }
                },
                "graph": "41.881858,-87.641158 41.88184,-87.64283 41.881786,-87.64736 41.881732,-87.649679 41.881687,-87.651828 41.881651,-87.653194 41.881651,-87.654354 41.881597,-87.657329 41.881552,-87.658767 41.881552,-87.659657 41.881525,-87.662273 41.881507,-87.664386 41.881453,-87.666795 41.881408,-87.669114 41.881408,-87.670103 41.881381,-87.670328 41.881372,-87.671919 41.881336,-87.674238 41.8813,-87.676449 41.881264,-87.679092 41.881229,-87.68187 41.881202,-87.684243 41.881157,-87.686194"
              }
            ]
          }
        }
      ],
      "Operators": {
        "Op": [
          {
            "code": "1gA48700",
            "name": "Chicago Transit Authority",
            "type": "TT",
            "Link": [
              {
                "type": "website",
                "href": "https://cit.transit.api.here.com/r?app_id={YOUR_APP_ID}&u=http://transitchicago.com",
                "text": "Chicago Transit Authority"
              }
            ],
            "At": {
              "phone": "1-888-YOURCTA"
            }
          }
        ]
      }
    }
  }
}