Typically, but not guaranteed to be, 20 bytes Base64 URL-safe encoded string used for the authentication of the client application. If you use the app ID/app code option, you need to include an app_id and app_code with every request. For further details, see Acquiring Credentials.
app_code
String
Typically, but not guaranteed to be, 20 bytes Base64 URL-safe encoded string used for the authentication of the client application. If you use the app ID/app code option, you need to include an app_id and app_code with every request. For further details, see Acquiring Credentials.
apiKey
String
A 43-byte Base64 URL-safe encoded string used for the authentication of the client application. As a logged in user, you can generate it at https://developer.here.com/projects. API Keys never expire but you can invalidate your API Keys at any time. You cannot have more than two API Keys for one app at the same time. You must include an apiKey with every request. For further details, see Acquiring Credentials.
center
Double,Double
Specifies the latitude and the longitude of the center point of your search separated by a comma. Where the latitude is in WGS 84-compliant degrees between -90 and 90 and the longitude in WGS 84-compliant degrees between -180 and 180.
validOn
Double
Specifies the time from which the alerts in the response need to be valid in yyyy-MM-ddThh:mm:ss format.
When the optional timezone offset is not specified, time is assumed to be local.
If timezone offset is specified, all xs:dateTime in the response will be returned with the proper timezone valid at each location.
Table 2. Optional Parameters
Parameter
Data Type
Description
lines
String
Specifies the list of line names the response should include. Separate the names by a comma. If you use this parameter, only the response only contains the listed lines.
max
Integer
Specifies the maximum number of alerts in the response. Default is 40 and 100 is maximum allowed number.
modes
String
Specifies the transit type filter used to determine which types of transit to include in the response. By default the parameter is omitted, meaning all supported transit types are permitted. See Transit Modes page for more information.
filter
String
Specifies what alerts will be returned in the response. The following values are possible:
all: All alerts
matched: Alerts that were able to match with the transit data
unmatched: Alerts that were fail to match with the transit data
Default value: matched
Note: The Alerts are sourced from transit agencies' API feeds and/or Twitter accounts (where available). If the alerts' origin is from Twitter, you are required to follow Twitter's general principles for presenting alerts correctly. We do not provide any data for Twitter's logos and links for Twitter's actions. The full guidance on the display requirements can be found on Twitter Display Requirements page.
