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Code Style: Prefer WithFields over Infof (#349)

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* Code Style: Prefer WithFields over Infof

* Update CODE_STYLE.md
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Erik Johnston 2017-11-22 09:35:25 +00:00 committed by GitHub
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@ -52,6 +52,29 @@ github. These can be added just before merging of the PR to master, and the
issue number should be added to the comment, e.g. `// TODO(#324): ...`
## Logging
We generally prefer to log with static log messages and include any dynamic
information in fields.
```golang
logger := util.GetLogger(ctx)
// Not recommended
logger.Infof("Finished processing keys for %s, number of keys %d", name, numKeys)
// Recommended
logger.WithFields(logrus.Fields{
"numberOfKeys": numKeys,
"entityName": name,
}).Info("Finished processing keys")
```
This is useful when logging to systems that natively understand log fields, as
it allows people to search and process the fields without having to parse the
log message.
## Visual Studio Code
If you use VSCode then the following is an example of a workspace setting that