Add example of marshalling to string (#531)

This commit is contained in:
Brice Fernandes 2018-07-10 12:30:24 +01:00 committed by GitHub
parent 15738813a0
commit fb7a06477f
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23

View file

@ -437,6 +437,7 @@ The following functions and methods exist:
* `GetTime(key string) : time.Time`
* `GetDuration(key string) : time.Duration`
* `IsSet(key string) : bool`
* `AllSettings() : map[string]interface{}`
One important thing to recognize is that each Get function will return a zero
value if its 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 comes ready to use out of the box. There is no configuration or