6c8b023298
The wrapper code is adapted from the swarm/services/chequebook package
with the following mostly cosmetic changes:
* The code now uses the new Go API interfaces to query balances. Some
minor functional changes were required to make this work.
* The package no longer depends on swarm/services/swap/swap. References
to swap.Promise are replaced by interface{}, the base type of Promise.
This is temporary.
* The contract wrapper has been regenerated with latest abigen
and solc v0.3.6.
* There is a new generator that creates the 'deployed code' variable.
* Documentation comments now follow the recommended godoc style.
* [CHEQUEBOOK] log prefixes are gone.
* LGPL license headers have been added to all files.
69 lines
1.8 KiB
Go
69 lines
1.8 KiB
Go
// Copyright 2016 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package chequebook
|
|
|
|
import (
|
|
"errors"
|
|
"math/big"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
)
|
|
|
|
const Version = "1.0"
|
|
|
|
var errNoChequebook = errors.New("no chequebook")
|
|
|
|
type Api struct {
|
|
chequebookf func() *Chequebook
|
|
}
|
|
|
|
func NewApi(ch func() *Chequebook) *Api {
|
|
return &Api{ch}
|
|
}
|
|
|
|
func (self *Api) Balance() (string, error) {
|
|
ch := self.chequebookf()
|
|
if ch == nil {
|
|
return "", errNoChequebook
|
|
}
|
|
return ch.Balance().String(), nil
|
|
}
|
|
|
|
func (self *Api) Issue(beneficiary common.Address, amount *big.Int) (cheque *Cheque, err error) {
|
|
ch := self.chequebookf()
|
|
if ch == nil {
|
|
return nil, errNoChequebook
|
|
}
|
|
return ch.Issue(beneficiary, amount)
|
|
}
|
|
|
|
func (self *Api) Cash(cheque *Cheque) (txhash string, err error) {
|
|
ch := self.chequebookf()
|
|
if ch == nil {
|
|
return "", errNoChequebook
|
|
}
|
|
return ch.Cash(cheque)
|
|
}
|
|
|
|
func (self *Api) Deposit(amount *big.Int) (txhash string, err error) {
|
|
ch := self.chequebookf()
|
|
if ch == nil {
|
|
return "", errNoChequebook
|
|
}
|
|
return ch.Deposit(amount)
|
|
}
|