Question

我执行以下调用以获取Ruby对象，该对象从Spotify的API返回数据：

yaml

返回：

app_server_name: ************
app_server_username: $USERNAME$
app_server_password: ‘**********’ #trying to parse from local drive
app_yaml_file: /devl/galaxy/common/edwEnvironmentConfig.yml
environment_profile: /home/$USERNAME$/eproduct/difenv
teradata_logon_file: /home/$USERNAME$/.priv/devl/.td_connection
project_root_directory: /home/$USERNAME$/eproduct/
teradata_auth_type: ‘ldap’
tmode: ‘TERA’

当我尝试获取spotify_track = RSpotify::AudioFeatures.find('3RmAqYZZjiSyMV40hm6rDL')的属性之一时，出现404错误：

#<RSpotify::AudioFeatures:0x00007fe0cc079b30 @acousticness=nil, @analysis_url="https://api.spotify.com/v1/audio-analysis/3RmAqYZZjiSyMV40hm6rDL", @danceability=nil, @duration_ms=35361, @energy=nil, @instrumentalness=nil, @key=1, @liveness=nil, @loudness=-12.186, @mode=1, @speechiness=nil, @tempo=0, @time_signature=nil, @track_href="https://api.spotify.com/v1/tracks/3RmAqYZZjiSyMV40hm6rDL", @valence=nil, @external_urls=nil, @href=nil, @id="3RmAqYZZjiSyMV40hm6rDL", @type="audio_features", @uri="spotify:track:3RmAqYZZjiSyMV40hm6rDL">

那么，如何检查属性是否为nil？

诸如> spotify_track.acousticness Traceback (most recent call last): 1: from (irb):25 RestClient::NotFound (404 Not Found)，nil和spotify_track.acousticness.present?之类的常见事物都返回相同的RestClient 404错误。

我正在使用RSpotify宝石，它使用REST Client宝石。

Answer 1

您可以营救并向其中添加一些代码，

rescue RestClient::ExceptionWithResponse => err

引用rest-client#response-callbacks-error-handling

如何检查对象是否为零？

1 个答案: