better error message

input-output-hk · May 8, 2024 · 38bc09b · 38bc09b
1 parent ec898fa
commit 38bc09b
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/hydra-node/src/Hydra/Chain/Offline.hs b/hydra-node/src/Hydra/Chain/Offline.hs
@@ -48,6 +48,12 @@ loadGenesisFile ledgerGenesisFile =
         pure shelleyGenesisDefaults{sgSystemStart = now}
       Just fp ->
         readJsonFileThrow (parseJSON @(ShelleyGenesis StandardCrypto)) fp
+          `catch` \(e :: IOException) -> do
+            putStrLn $ "Failed to parse initial UTXO" <> fp
+            putStrLn $ "Example UTXO: " <> "
+              {\"1541287c2598ffc682742c961a96343ac64e9b9030e6b03a476bb18c8c50134d#0\":{\"address\":\"addr_test1vqg9ywrpx6e50uam03nlu0ewunh3yrscxmjayurmkp52lfskgkq5k\",\"datum\":null,\"datumhash\":null,\"inlineDatum \":null,\"referenceScript\":null,\"value\":{\"lovelace\":100000000}},\"39786f186d94d8dd0b4fcf05d1458b18cd5fd8c6823364612f4a3c11b77e7cc7#0\":{\"address\":\"addr_test1vru2drx33ev6dt8gfq245r5k0tmy7ngqe79va69de9dxkrg09c7d3\",\"datum\":null,\"datumhash\":null,\"inlineDatum\":null,\"referenceScript\":null,\"value\":{\"lovelace\":100000000}}}
+              "
+            e
 
 withOfflineChain ::
   OfflineChainConfig ->