Function putJSON

11_app_dev/chaincode_example03.go:402–411

(ctx contractapi.TransactionContextInterface, key string, value interface{})

}

func putJSON(ctx contractapi.TransactionContextInterface, key string, value interface{}) error {
	data, err := json.Marshal(value)
	if err != nil {
		return fmt.Errorf("failed to encode %s: %w", key, err)
	}
	if err := ctx.GetStub().PutState(key, data); err != nil {
		return fmt.Errorf("failed to write %s: %w", key, err)
	}
	return nil
}

func bankKey(id int) string {
	return fmt.Sprintf("bank:%d", id)