forked from cerc-io/ipld-eth-server
48 lines
1.1 KiB
Go
48 lines
1.1 KiB
Go
package vat_toll
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import (
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"encoding/json"
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"errors"
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"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
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"github.com/ethereum/go-ethereum/core/types"
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)
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type VatTollConverter struct{}
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func (VatTollConverter) ToModels(ethLogs []types.Log) ([]interface{}, error) {
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var models []interface{}
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for _, ethLog := range ethLogs {
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err := verifyLog(ethLog)
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if err != nil {
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return nil, err
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}
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ilk := shared.GetHexWithoutPrefix(ethLog.Topics[1].Bytes())
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urn := shared.GetHexWithoutPrefix(ethLog.Topics[2].Bytes())
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take := ethLog.Topics[3].Big()
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raw, err := json.Marshal(ethLog)
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if err != nil {
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return nil, err
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}
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model := VatTollModel{
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Ilk: ilk,
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Urn: urn,
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Take: take.String(),
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TransactionIndex: ethLog.TxIndex,
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LogIndex: ethLog.Index,
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Raw: raw,
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}
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models = append(models, model)
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}
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return models, nil
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}
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func verifyLog(log types.Log) error {
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numTopicInValidLog := 4
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if len(log.Topics) < numTopicInValidLog {
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return errors.New("log missing topics")
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}
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return nil
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}
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