fix empty topics in a non-breaking way (#35)

CHANGELOG.md

@@ -46,6 +46,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Bug Fixes
 
 * (rpc) [tharsis#667](https://github.com/tharsis/ethermint/issues/667) Fix `ExpandHome` restrictions bypass
+* (rpc) [tharsis#848](https://github.com/tharsis/ethermint/pull/848) fix empty topics in a non-breaking way
 
 ## [v0.7.1] - 2021-10-08
 

rpc/ethereum/backend/utils.go

@@ -155,5 +155,11 @@ func TxLogsFromEvents(events []abci.Event) ([]*ethtypes.Log, error) {
  logs = append(logs, &log)
  }
  }
- return evmtypes.LogsToEthereum(logs), nil
+ ethLogs := evmtypes.LogsToEthereum(logs)
+ for i := range ethLogs {
+ if ethLogs[i].Topics == nil {
+ ethLogs[i].Topics = make([]common.Hash, 0)
+ }
+ }
+ return ethLogs, nil
 }