Check if empty block

Author: alrevuelta

README.md

@@ -66,6 +66,7 @@ Goerli deposit contract is `0xff50ed3d0ec03aC01D4C79aAd74928BFF48a7b2b` but some
 Store in `.env` so that it's picked up by `docker-compose`
 
 ```
+export NETWORK=goerli
 export POOL_ADDRESS=0x8eba4A4A8d4DFa78BCB734efD1eA9f33b61e3243
 export UPDATER_KEYSTORE_PASS=xxx
 ```

oracle/block.go

@@ -58,6 +58,12 @@ func NewFullBlock(
 func (b *FullBlock) MevRewardInWei() (*big.Int, bool, string) {
 
 	txs := b.GetBlockTransactions()
+
+	// Check if block is empty (no txs)
+	if len(txs) == 0 {
+		return big.NewInt(0), false, ""
+	}
+
 	lastTx := txs[len(txs)-1]
 
 	tx, msg, err := DecodeTx(lastTx)