Class: TrafficIncidentsService

alk.service.TrafficIncidentsService

An instance of this class, given the parameters and defaults, is used to make requests to the ALK Traffic Incidents Service.

new alk.service.TrafficIncidentsService(opt_options)

This constructor creates a Service object with which to access the ALK Traffic Incidents Service.

Option Type Description
apiKey string

This option contains the ALK ApiKey that gives you permission to extract data from ALK Servers.

dataset alk.val.Dataset | number | string

The option contains the Dataset parameter for the Service. This option specifies an area dataset that may be pertinent to the request.

language alk.val.Language | string

This option tells the service the particular language for the results.

region alk.val.Region | number | string

This option tells the service in which region the retrieved data is to pertain. Some ALK Services switch underlying services due to this option. For instance, traffic data for North America and Europe may come from different underlying services.

srs alk.val.SRS | number | string

This option tells the service the particular projection that is used any GIS data given to the service.

hostURL string

This option contains the the host and port URL for the particular service. This option is not set by the user, but is automatically generated from the particular service being used.

path string

This option is the path part of the URL for the particular service. This option is not set by the user, but is automatically generated from the particular service being used.

boundingBox Array.<number> | string

This option holds the bounding box, or extent in which the items are requested.

Extends

Methods

get(opts_or_callback, responseCallback)

This method performs a call to the Traffic Incidents Service to return incidents.

Name Type Description
opts_or_callback alkx.TrafficIncidentsServiceOptions | null | function

This parameter contains any options to override or extend the options set in the construction of this object for the call.

Attribute Type Description
apiKey string

This option contains the ALK ApiKey that gives you permission to extract data from ALK Servers.

dataset alk.val.Dataset | number | string

The option contains the Dataset parameter for the Service. This option specifies an area dataset that may be pertinent to the request.

language alk.val.Language | string

This option tells the service the particular language for the results.

region alk.val.Region | number | string

This option tells the service in which region the retrieved data is to pertain. Some ALK Services switch underlying services due to this option. For instance, traffic data for North America and Europe may come from different underlying services.

srs alk.val.SRS | number | string

This option tells the service the particular projection that is used any GIS data given to the service.

hostURL string

This option contains the the host and port URL for the particular service. This option is not set by the user, but is automatically generated from the particular service being used.

path string

This option is the path part of the URL for the particular service. This option is not set by the user, but is automatically generated from the particular service being used.

boundingBox Array.<number> | string

This option holds the bounding box, or extent in which the items are requested.

responseCallback function

The response handler.

getAttribution(opts_or_callback, responseCallback){*|undefined} inherited

This method performs a request to this configured service using the supplied options, options set on the constructor, and defaults to get the service's attribution, should it have one. This call results in Object, which may be a parsed JSON response.

Name Type Description
opts_or_callback Object | function

This parameter contains any options that override options that are set on this object for this particular request.

responseCallback function

This parameter is the function that handles the response.

getServiceOptions(options){Object} inherited

This method returns the base options that was used to create this Service object and override them with the given options;

Name Type Description
options Object
Returns:
The combined options.

getURL(opt_options){string} inherited

Returns the URL for the service based on the given options, options set on the constructor, and defaults.

Name Type Description
options Object

These options override any relevant options that are set on the object at its construction.

processResponse(options, obj){Object}

This call processes the response before it is given to the callback.

This particular method enhances the response from the ALK/PCM service and modifies it accordingly.

The response returned from Traffic Incidents Service returns a JSON object containing a single alkx.TrafficIncidentSpec.

Name Type Description
options Object

The options that were given with the call combined with the base options used for the alk.service.TrafficIncidentsService.

obj Object

The JSON response from the alk.service.TrafficIncidentsService.

Returns:
Containing the TrafficIncidentsServiceOptions and if a successful call also contains a JSON object containing the incidents requested.