README.md

OpenFaaS Cloud Functions

This repository is for my functions hosted on the OpenFaaS Cloud Community Cluster. Find out more here.

Spotify

This function follows the client credentials flow to query the Spotify Web API.

How to use

Use the Spotify Web API reference to extend the function path with required path parameters and/or query arguments.

For example:

To get information about a track

$ curl https://kturcios.o6s.io/spotify/tracks/{id}

or get the top tracks for an artist

$ curl https://kturcios.o6s.io/spotify/artists/{id}/top-tracks?country=US

My personal favorite is retrieving the audio features of a song to get features like the "danceability" or "energy" of a song. Check out the results for Stayin' Alive by the Bee Gees!

curl https://kturcios.o6s.io/spotify/audio-features/3mRM4NM8iO7UBqrSigCQFH

{
  "danceability" : 0.703,
  "energy" : 0.826,
  "key" : 10,
  "loudness" : -7.179,
  "mode" : 0,
  "speechiness" : 0.0341,
  "acousticness" : 0.0322,
  "instrumentalness" : 0.00629,
  "liveness" : 0.179,
  "valence" : 0.945,
  "tempo" : 103.564,
  "type" : "audio_features",
  "id" : "3mRM4NM8iO7UBqrSigCQFH",
  "uri" : "spotify:track:3mRM4NM8iO7UBqrSigCQFH",
  "track_href" : "https://api.spotify.com/v1/tracks/3mRM4NM8iO7UBqrSigCQFH",
  "analysis_url" : "https://api.spotify.com/v1/audio-analysis/3mRM4NM8iO7UBqrSigCQFH",
  "duration_ms" : 285373,
  "time_signature" : 4
}

Node Microservice

This is an example for running a microservice workload. It follows the common workload properties:

• serve HTTP traffic on TCP port 8080
• create a lock file in /tmp/.lock - removing this file signals service degradation
• assume ephemeral storage

Read more about OpenFaaS workloads here