consider API methods supporting io.Reader

[maxthomas]

passing around io.Readers is broadly supported in the golang ecosystem, but this API only supports []byte as input.

have you considered adding support for taking in io.Readers in the API?

[dolmen]

Supporting an interface which is a subset of json.Decoder as input would be more useful. json.NewDecoder can take an io.Reader as input.

See how package github.com/dolmen-go/jsonptr uses jsonptr.JSONDecoder as input for extracting data from JSON documents with jsonptr.Get:

type JSONDecoder interface {
	Token() (json.Token, error)
	More() bool
	Decode(interface{}) error
}

Disclaimer: I'm the author of this jsonptr package.