60 lines
1.9 KiB
Go
60 lines
1.9 KiB
Go
// VulcanizeDB
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// Copyright © 2018 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package transformer
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import (
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/libraries/shared/constants"
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
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)
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type EventTransformer interface {
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Execute(logs []types.Log, header core.Header, recheckHeaders constants.TransformerExecution) error
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GetConfig() TransformerConfig
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}
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type TransformerInitializer func(db *postgres.DB) EventTransformer
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type TransformerConfig struct {
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TransformerName string
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ContractAddresses []string
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ContractAbi string
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Topic string
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StartingBlockNumber int64
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EndingBlockNumber int64 // Set -1 for indefinite transformer
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}
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func HexToInt64(byteString string) int64 {
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value := common.HexToHash(byteString)
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return value.Big().Int64()
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}
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func HexToString(byteString string) string {
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value := common.HexToHash(byteString)
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return value.Big().String()
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}
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func HexStringsToAddresses(strings []string) (addresses []common.Address) {
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for _, hexString := range strings {
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addresses = append(addresses, common.HexToAddress(hexString))
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}
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return
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}
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