func Example_keyPartTransform() {
input := `{
"foo": {
"bar": "value"
}
}`
inputReader := strings.NewReader(input)
jsonLoader := &Loader{
KeyPartTransform: strings.ToUpper,
}
loader := config.NewReaderFuncLoader(
jsonLoader.LoadReader,
inputReader,
)
c := config.New()
_, err := c.MergeLoaders(loader)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(c.GetStringOk("FOO.BAR"))
_, ok := c.GetOk("foo.bar")
fmt.Println(ok)
//Output:
//value true
//false
}
func Example() {
input := `{
"string": "foo bar",
"bool": false,
"int": 12345678,
"float": 1234.5678,
"nested1": {
"nested2": {
"nested3": "..."
}
},
"nope": null
}`
inputReader := strings.NewReader(input)
loader := config.NewReaderFuncLoader(
(&Loader{}).LoadReader,
inputReader,
)
c := config.New()
_, err := c.MergeLoaders(loader)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(c.GetStringOk("string"))
fmt.Println(c.GetBoolOk("bool"))
fmt.Println(c.GetInt64Ok("int"))
fmt.Println(c.GetFloat64Ok("float"))
fmt.Println(c.GetStringOk("nested1.nested2.nested3"))
fmt.Println(c.GetOk("nope"))
fmt.Println()
fmt.Println(c.GetInt64Ok("bool"))
fmt.Println(c.GetOk("not present"))
//Output:
//foo bar true
//false true
//12345678 true
//1234.5678 true
//... true
//<nil> true
//
//0 false
//<nil> false
}