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Traffic API

China specific
Traffic API Developer's Guide

HTTP Status Codes

Traffic API supports the standard HTTP status codes.

Table 1. HERE Error Codes
Error code Description
200 OK Indicates success, but may also be returned when an invalid resource name and/or an invalid parameter combination has been used in the request.
204 No Content Indicates that the request was valid but there is no traffic data available.
400 Bad request Invalid parameter value in the request, for example zoom out of range. Examples include:
  • The quadkey parameter is invalid ([length] 22 or any character not in [0,1,2,3]).
  • The required parameters are not provided.
  • The query combines both bbox and quadkey parameters, which is not permitted. You must use either the bbox or quadkey parameter.
  • An invalid bbox parameter format. The bbox parameter must be specified in the form [lat0],[lon0];[lat1],[lon1]
  • Incorrect values for the filtering parameters were used.
403 Forbidden Incorrect token in the request. For more information, see Acquiring Credentials.
404 Not found Unsupported parameter in the request. Examples include:
  • The domain-section of the URL does not point at a valid service environment.
  • The path-section of the URL does not point at a quadkey service instance.
500 Internal error The service is not available or server configuration issue.
503 Service Unavailable Indicates that the services is temporarily unavailable due to system overload or maintenance

The API supports the standard authorization mechanism common to all HERE APIs. This mechanism can return status codes detailed below.

Table 2. Authentication Responses
Scenario Response Code HTTP Response Message
app_id and app_code are both missing 400 The request is missing the app_id and app_code parameters. They must both be passed as query parameters. For information on how to obtain app_id and app_code, see Acquiring Credentials
app_id is there but the app_code is missing 400 The request is missing the app_code. It must be passed as a query parameter.
app_code is there but app_id is missing 400 The request is missing the app_id. It must be passed as a query parameter.
app_id and app_code are both present in the request but the validation fails. 401 This is not a valid app_id and app_code pair. Please verify that the values are not swapped between the app_id and app_code. For more information, see Acquiring Credentials
No matching pattern in the authentication mechanism configuration for this requested URL 404 The URL resource cannot be found.
If the requested URL does exist but the HTTP verb is not supported for that URL 405 The HTTP method is not supported for this URL.
If SSL is required, but the request is not sent over SSL. 400 SSL/TLS is required for this URL; please retry the request using SSL/TLS.
Unexpected authentication error 500 Server error - please retry again at a later time.

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