echonest/echoprint-codegen — Issue #29: Songs response is empty
Author: Vanuan
Created: 2011-10-16 11:46:34+00:00
State: open

I'm trying to test echoprint and wondering if I'm doing something wrong:

./echoprint-codegen ~/medialibrary/Sounds/Music/The\ Beatles\ -\ Yesterday\ \(1965\).mp3 > post_data

post_data file:

[
{"metadata":{"artist":"The Beatles", "release":"GOLD Collection (Novartis Vers", "title":"Yesterday (1965)", "genre":"Rock", "bitrate":192,"sample_rate":44100, "duration":127, "filename":"/home/vanya/medialibrary/Sounds/Music/The Beatles - Yesterday (1965).mp3", "samples_decoded":1400822, "given_duration":0, "start_offset":0, "version":4.12, "codegen_time":0.351157, "decode_time":0.976557}, "code_count":2970, "code":"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", "tag":0}
]

Making request:

curl -F "query=@post_string" http://developer.echonest.com/api/v4/song/identify?api_key=MY_API_KEY

Response:

{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "songs": []}}

What does it mean? The song is missing in DB?