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Add example of marshalling to string (#531)

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Brice Fernandes 2018-07-10 12:30:24 +01:00 committed by GitHub
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@ -437,6 +437,7 @@ The following functions and methods exist:
* `GetTime(key string) : time.Time` * `GetTime(key string) : time.Time`
* `GetDuration(key string) : time.Duration` * `GetDuration(key string) : time.Duration`
* `IsSet(key string) : bool` * `IsSet(key string) : bool`
* `AllSettings() : map[string]interface{}`
One important thing to recognize is that each Get function will return a zero One important thing to recognize is that each Get function will return a zero
value if it’s not found. To check if a given key exists, the `IsSet()` method value if it’s not found. To check if a given key exists, the `IsSet()` method
@ -590,6 +591,27 @@ if err != nil {
} }
``` ```
### Marshalling to string
You may need to marhsal all the settings held in viper into a string rather than write them to a file.
You can use your favorite format's marshaller with the config returned by `AllSettings()`.
```go
import (
yaml "gopkg.in/yaml.v2"
// ...
)
func yamlStringSettings() string {
c := viper.AllSettings()
bs, err := yaml.Marshal(c)
if err != nil {
t.Fatalf("unable to marshal config to YAML: %v", err)
}
return string(bs)
}
```
## Viper or Vipers? ## Viper or Vipers?
Viper comes ready to use out of the box. There is no configuration or Viper comes ready to use out of the box. There is no configuration or