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You can find the Spotify Developer Terms here: https://developer.spotify.com/terms https://developer.spotify.com/terms Basically, you're not allowed to sell th

• svantana 5y ago
  In those terms, it says "you may not store, aggregate or create compilations or databases of Spotify Content". So for this site to be compliant, they should be serving up the data directly from the Spotify API, which ought to get rate limited pretty quickly (when on the HN frontpage and all), unless they somehow got a very large quota.
  • alin23 5y ago
    I’m serving everything from the Spotify API directly on Noiseblend (https://noiseblend.com https://noiseblend.com) and rate limit has never been a problem. When a request fails because of a rate limit, Spotify responds with 429 and a Retry-After header so you know when to schedule the next request. In my tests, that header never had a value greater than 10 seconds, and 429 responses were very rare.
    • svantana 5y ago
      Right, but you are using user login, and I think that gives you a lot more rate than a single account doing all the requests, which is what you need to get the no-sign-in experience on songdata.io - right?
      • alin23 5y ago
        Indeed, I forgot about that part... I think all of my requests to Spotify have been done on behalf of authenticated users. But I guess you could authenticate with your own user to lift up the limits.
      • soheilpro 5y ago
        Spotify rate limits are per app, not per user.