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transfers.go
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transfers.go
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// Copyright (c) 2018 The VeChainThor developers
// Distributed under the GNU Lesser General Public License v3.0 software license, see the accompanying
// file LICENSE or <https://www.gnu.org/licenses/lgpl-3.0.html>
package transfers
import (
"context"
"net/http"
"github.com/gorilla/mux"
"github.com/pkg/errors"
"github.com/vechain/thor/v2/api/events"
"github.com/vechain/thor/v2/api/utils"
"github.com/vechain/thor/v2/chain"
"github.com/vechain/thor/v2/logdb"
)
type Transfers struct {
repo *chain.Repository
db *logdb.LogDB
}
func New(repo *chain.Repository, db *logdb.LogDB) *Transfers {
return &Transfers{
repo,
db,
}
}
// Filter query logs with option
func (t *Transfers) filter(ctx context.Context, filter *TransferFilter) ([]*FilteredTransfer, error) {
rng, err := events.ConvertRange(t.repo.NewBestChain(), filter.Range)
if err != nil {
return nil, err
}
transfers, err := t.db.FilterTransfers(ctx, &logdb.TransferFilter{
CriteriaSet: filter.CriteriaSet,
Range: rng,
Options: filter.Options,
Order: filter.Order,
})
if err != nil {
return nil, err
}
tLogs := make([]*FilteredTransfer, len(transfers))
for i, trans := range transfers {
tLogs[i] = convertTransfer(trans)
}
return tLogs, nil
}
func (t *Transfers) handleFilterTransferLogs(w http.ResponseWriter, req *http.Request) error {
var filter TransferFilter
if err := utils.ParseJSON(req.Body, &filter); err != nil {
return utils.BadRequest(errors.WithMessage(err, "body"))
}
tLogs, err := t.filter(req.Context(), &filter)
if err != nil {
return err
}
return utils.WriteJSON(w, tLogs)
}
func (t *Transfers) Mount(root *mux.Router, pathPrefix string) {
sub := root.PathPrefix(pathPrefix).Subrouter()
sub.Path("").
Methods(http.MethodPost).
Name("logs_filter_transfer").
HandlerFunc(utils.WrapHandlerFunc(t.handleFilterTransferLogs))
}