jwt.go
func PeekAlgorithmAndIssuer(buf []byte) (Algorithm, string, error) {
	var err error

	// get algorithm
	alg, err := PeekAlgorithm(buf)
	if err != nil {
		return NONE, "", err
	}

	// get issuer
	issuer, err := PeekPayloadField(buf, "iss")
	if err != nil {
		return NONE, "", err
	}

	return alg, issuer, nil
}
func PeekAlgorithmAndIssuer(buf []byte) (Algorithm, string, error) {
	var err error

	// get algorithm
	alg, err := PeekAlgorithm(buf)
	if err != nil {
		return NONE, "", err
	}

	// get issuer
	issuer, err := PeekPayloadField(buf, "iss")
	if err != nil {
		return NONE, "", err
	}

	return alg, issuer, nil
}
func PeekAlgorithmAndIssuer ( buf [ ] byte ) ( Algorithm , string , error ) { var err error // get algorithm alg , err := PeekAlgorithm ( buf ) if err != nil { return NONE , " " , err } // get issuer issuer , err := PeekPayloadField ( buf , " " ) if err != nil { return NONE , " " , err } return alg , issuer , nil }
// PeekAlgorithmAndIssuer extracts the signing algorithm listed in the "alg"
// field and the issuer from the "iss" field of the serialized JWT buf's header
// and payload, attempting to unmarshal alg to Algorithm and iss to a string.
// An error will be returned if the Algorithm or Issuer fields are not
// specified in the JWT header and payload, or are otherwise invalid.
PeekAlgorithmAndIssuer extracts the signing algorithm listed in the alg field and the issuer from the iss field of the serialized JWT buf s header and payload attempting to unmarshal alg to Algorithm and iss to a string . An error will be returned if the Algorithm or Issuer fields are not specified in the JWT header and payload or are otherwise invalid .