Contract Events

import (
  "github.com/ethereum/go-ethereum/common"
  "github.com/ChefBingbong/viem-go/actions/public"
)

logs, err := public.GetContractEvents(ctx, publicClient, public.GetContractEventsParameters{
  Address:   contractAddress,
  ABI:       erc20ABI,
  EventName: "Transfer",
  Args:      []any{fromAddress, nil}, // from=specific, to=any
})
if err != nil {
  log.Fatal(err)
}
for _, log := range logs {
  fmt.Println(log.EventName, log.DecodedArgs)
}

filter, err := public.CreateContractEventFilter(ctx, publicClient, public.CreateContractEventFilterParameters{
  Address:   contractAddress,
  ABI:       erc20ABI,
  EventName: "Transfer",
  Args:      []any{nil, toAddress}, // from=any, to=specific
})
if err != nil {
  log.Fatal(err)
}
// Use filter.ID with public.GetFilterChanges(ctx, client, filter.ID) or GetFilterLogs

ctx, cancel := context.WithCancel(context.Background())
defer cancel()

events := public.WatchContractEvent(ctx, publicClient, public.WatchContractEventParameters{
  Address:   contractAddress,
  ABI:       erc20ABI,
  EventName: "Transfer",
  Args:      map[string]any{"to": toAddress},
  Batch:     true,
})

for event := range events {
  if event.Error != nil {
      log.Println(event.Error)
      continue
  }
  for _, log := range event.Logs {
      fmt.Println(log)
  }
}