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Airtime 2.5 for Broadcasters

Airtime API authentication

The Airtime API enables many types of information about the broadcast schedule and configuration to be retrieved from the Airtime server. Other than the live-info and week-info data fetched by website widgets (see the chapter Exporting the schedule), all API requests must be authenticated using the secret API key stored in the file /etc/airtime/api_client.cfg on the Airtime server. This key is autogenerated during Airtime installation and should be unique for each server.

If you intend to use the Airtime API across a public network, for security reasons it is highly recommended that all API requests are sent over encrypted https: and that the web server is configured to accept requests to the api/ directory from specific host names or IP addresses only.

The format of API requests is:

where api-action is the type of request and XXXXXX is the secret API key. Available actions include:

  • on-air-light - return true if the station is on air
  • status - get the status of Airtime components and resource usage
  • version - returns the version of Airtime installed
  • get-files-without-silan-value - list files for which silence detection has not yet been performed
  • get-stream-setting - gets the settings of Airtime output streams
  • get-stream-parameters - gets the parameters of Airtime output streams

For example, using the action get-stream-setting returns the following output for the first configured stream:






{"keyname":"s1_description","value":"Airtime Radio! Stream


which is enough information to construct a player widget dynamically. (s1_url is the station's homepage, not the stream URL). The same information is provided with an s2_ prefix for the second stream, and s3_ prefix for the third stream.

Some API requests require the directory ID number to be specified as dir_id including:

  • list-all-files - list files in the specified directory
  • get-files-without-replay-gain - list files in the specified directory for which ReplayGain has not been calculated yet

For example, using a request such as:

returns the full path to each media file in the Airtime storage directory:

"imported\/1\/Mark Ronson feat. Saigon\/Here Comes the Fuzz\/7-Diduntdidunt-unknown.flac",
"imported\/1\/Jimi Tenor & Tony Allen\/Inspiration Information\/3-Selfish Gene-128kbps.mp3",

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