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query.go
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query.go
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// Copyright 2019 The fsn-go-sdk Authors
// This file is part of the fsn-go-sdk library.
//
// The fsn-go-sdk 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 fsn-go-sdk 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 fsn-go-sdk library. If not, see <http://www.gnu.org/licenses/>.
package query
import (
"math/big"
"github.com/fsn-dev/fsn-go-sdk/efsn/ethclient"
)
type QueryClient interface {
GetAccount(string) (*big.Int, error)
GetAccountAtBlockNumber(string, int64) (*big.Int, error)
}
type client struct {
*ethclient.Client
}
func NewClient(url string) (QueryClient, error) {
ethclient, err := ethclient.Dial(url)
if err != nil {
return nil, err
}
return client{ethclient}, nil
}