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feat: add TransferFrom event

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This commit is contained in:
Mohamed Sohail
2025-05-13 18:57:28 +03:00
parent cf23978621
commit 0efd01e058
4 changed files with 48 additions and 5 deletions
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49
internal/handler/token_transfer.go
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@@ -13,9 +13,10 @@ import (
const transferEventName = "TOKEN_TRANSFER"
var (
tokenTransferEvent = w3.MustNewEvent("Transfer(address indexed _from, address indexed _to, uint256 _value)")
tokenTransferSig = w3.MustNewFunc("transfer(address, uint256)", "bool")
tokenTransferFromSig = w3.MustNewFunc("transferFrom(address, address, uint256)", "bool")
tokenTransferEvent = w3.MustNewEvent("Transfer(address indexed _from, address indexed _to, uint256 _value)")
tokenTransferSig = w3.MustNewFunc("transfer(address, uint256)", "bool")
tokenTransferFromSig = w3.MustNewFunc("transferFrom(address, address, uint256)", "bool")
tokenTransferFromEvent = w3.MustNewEvent("TransferFrom(address indexed _from, address indexed _to, address indexed _spender, uint256 _value)")
)
func HandleTokenTransferLog(hc *HandlerContainer) router.LogHandlerFunc {
@@ -125,3 +126,45 @@ func HandleTokenTransferInputData(hc *HandlerContainer) router.InputDataHandlerF
return nil
}
}
func HandleTokenTransferFromLog(hc *HandlerContainer) router.LogHandlerFunc {
return func(ctx context.Context, lp router.LogPayload, c router.Callback) error {
var (
from common.Address
to common.Address
spender common.Address
value big.Int
)
if err := tokenTransferFromEvent.DecodeArgs(lp.Log, &from, &to, &spender, &value); err != nil {
return err
}
// TODO: Check correct params
proceed, err := hc.checkWithinNetwork(ctx, lp.Log.Address.Hex(), from.Hex(), to.Hex())
if err != nil {
return err
}
if !proceed {
return nil
}
tokenTransferFromEvent := event.Event{
Index: lp.Log.Index,
Block: lp.Log.BlockNumber,
ContractAddress: lp.Log.Address.Hex(),
Success: true,
Timestamp: lp.Timestamp,
TxHash: lp.Log.TxHash.Hex(),
TxType: "TOKEN_TRANSFER_FROM",
Payload: map[string]any{
"from": from.Hex(),
"to": to.Hex(),
"spender": spender.Hex(),
"value": value.String(),
},
}
return c(ctx, tokenTransferFromEvent)
}
}