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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
Signed by: kamikazechaser
GPG Key ID: 7DD45520C01CD85D
4 changed files with 48 additions and 5 deletions
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1
cmd/service/router.go
View File

@ -26,6 +26,7 @@ func bootstrapEventRouter(cacheProvider cache.Cache, pubCB router.Callback) *rou
router.RegisterLogRoute(w3.H("0x894e56e1dac400b4475c83d8af0f0aa44de17c62764bd82f6e768a504e242461"), handler.HandleCustodialRegistrationLog())
router.RegisterLogRoute(w3.H("0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"), handler.HandleTokenTransferLog(handlerContainer))
router.RegisterLogRoute(w3.H("0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925"), handler.HandleTokenApproveLog(handlerContainer))
router.RegisterLogRoute(w3.H("0x2a41fa80e3e54181fc83d8e79d9cbbe49b1884bf79a3bf54f9d605d88eacb67e"), handler.HandleTokenTransferFromLog(handlerContainer))
router.RegisterInputDataRoute("63e4bff4", handler.HandleFaucetGiveInputData())
router.RegisterInputDataRoute("de82efb4", handler.HandleFaucetGiveInputData())

2
go.mod
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@ -1,6 +1,6 @@
module github.com/grassrootseconomics/eth-tracker
go 1.23.3
go 1.23
replace github.com/ethereum/go-ethereum => github.com/celo-org/op-geth v1.101411.1-0.20250213120352-dba6e464fdda

1
internal/api/api.go
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@ -11,7 +11,6 @@ func New() *bunrouter.Router {
router := bunrouter.New()
router.GET("/metrics", metricsHandler())
return router
}

49
internal/handler/token_transfer.go
View File

@ -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)
}
}