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docs(config/etcd): fix the missing step of Load (#2450)
Co-authored-by: Guoqiang Ding <guoqiang10@staff.sina.com.cn>
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@ -30,12 +30,16 @@ if err != nil {
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c := config.New(config.WithSource(source))
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defer c.Close()
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// load sources before get
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if err := c.Load(); err != nil {
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log.Fatalln(err)
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}
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// acquire config value
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foo, err := c.Value("/app-config").String()
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if err != nil {
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log.Println(err)
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log.Fatalln(err)
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}
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println(foo)
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log.Println(foo)
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```
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