match

func Any ¶

func Any(paths ...string) *anyMatcher

Any matcher acts as a placeholder for any value

It replaces any targeted path with a placeholder string

Any("user.name")
// or with multiple paths
Any("user.name", "user.email")

func Custom ¶

func Custom(path string, callback CustomCallback) *customMatcher

Custom matcher allows you to bring your own validation and placeholder value.

match.Custom("user.age", func(val any) (any, error) {
	age, ok := val.(float64)
	if !ok {
			return nil, fmt.Errorf("expected number but got %T", val)
	}

	return "some number", nil
})

The callback func value for JSON can be on of these types:
 bool // for JSON booleans
 float64 // for JSON numbers
 string // for JSON string literals
 nil // for JSON null
 map[string]any // for JSON objects
 []any // for JSON arrays

func Type ¶ added in v0.4.7

func Type[ExpectedType any](paths ...string) *typeMatcher[ExpectedType]

Type matcher evaluates types that are passed in a snapshot

It replaces any targeted path with placeholder in the form of `<Type:ExpectedType>`

match.Type[string]("user.info")
// or with multiple paths
match.Type[float64]("user.age", "data.items")