Helios API Releases

[1.20] 14 December 2018

• Added the ability to search for expired alerts

[1.19] 27 September 2018

• Updated the road weather sensor values in the Observations API to better identify ponding, wet, and moist conditions

[1.18] 24 July 2018

• Updated the visibility sensor values in the Observations API to better identify poor, reduced, and hazy conditions

[1.17] 3 April 2018

• Allow separate date and time queries for observations

[1.16] 20 March 2018

• Added "No report" sensor values in the Observations API

[1.15] 30 January 2018

• Added routes to the Cameras API and Observations API to serve tiles in Mapbox Vector Tile format

[1.14] 19 October 2017

• Added a moist output to the road_weather sensor in the Observations API
• Added an errors query param to the Index method in the Observations API

[1.13] 22 September 2017

• Bug fixes and internal improvements

[1.12] 25 August 2017

• Added prev_id attribute to observation responses

[1.11] 12 May 2017

• Bug fixes and internal improvements

[1.10] 5 April 2017

• Added beta version of Collections API
• Added beta version of Live Video route to the Cameras API

[1.9] 5 January 2017

• Added previous observation data values to Observations API responses to enable users to identify areas under transition

[1.8.0] 3 November 2016

• Added separate date and time aggregation options for observations to allow aggregating data by day or hour

[1.7.0] 31 October 2016

• Added aggregations to the Alerts API

[1.6.0] 28 September 2016

• Bug fixes and internal improvements

[1.5.0] 7 September 2016

• Bug fixes and internal improvements

[1.4.0] 6 June 2016

• Deprecated wetness and snow sensors for observations in favor of a singular road_weather sensor
• Changed sensor aggregation naming convention in the observations#index method

[1.3.4] 1 April 2016

• Bug fixes and internal improvements

[1.3.2] 3 March 2016

• Increased max pagination limit
• Bug fixes and internal improvements

[1.3.1] 22 February 2016

• Added pagination limits to all core search APIs
• Bug fixes and internal improvements

[1.3.0] 2 February 2016

• Bug fixes and internal improvements

[1.2.6] 8 December 2015

• Bug fixes and internal improvements

[1.2.5] 23 November 2015

• Bug fixes and internal improvements

[1.2.4] 2 November 2015

• Allow the OAuth access token to be specified in the URL as part of the query string

[1.2.3] 23 October 2015

• Bug fixes and internal improvements

[1.2.2] 2 September 2015

• Bug fixes and internal improvements

[1.2.1] 20 August 2015

• Bug fixes and internal improvements

[1.2.0] 3 August 2015

Note: Version 1.2 introduces breaking changes to authentication using API keys. Please review the Session API documentation and linked examples for more information.

• API key authentication now uses OAuth 2.0 access tokens
• Added an aggregate deltavis sensor measurement to Observation responses
• Added a visibility sensor measurement and query parameter to the Observations API

[1.1.7] 26 June 2015

• Bug fixes and internal improvements

[1.1.6] 1 June 2015

• Allow camera, alert, recording, and observation searches to be submitted using POST requests
• Bug fixes and internal improvements

[1.1.5] 27 April 2015

• Added a Preview method to the Observations API to simplify retrieving an observation image
• Added the ability to search metrics using a text query string
• Added the ability to aggregate recordings by rate, duration, and camera_id

[1.1.4] 30 March 2015

• Bug fixes and internal improvements

[1.1.3] 6 March 2015

• Added the ability to aggregate recordings search results
• Added the ability to search recordings using text-based location attributes
• Added the ability to sort camera, recording, and observation results using text-based location attributes

[1.1.2] 16 February 2015

• Bug fixes

[1.1.1] 14 January 2015

• Added geospatial search ability using the encoded polyline format from routing providers like Google Maps and Mapbox Directions to all search APIs

[1.1.0] 10 December 2014

• Initial release of version 1.1