Check for empty Tx response when querying packet events (#852)

* Check for empty Tx response when querying packets * Update changelog * Fix typos
informalsystems · Apr 26, 2021 · 2497f87 · 2497f87
1 parent 9f2c7cb
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -11,6 +11,7 @@
 
 - [ibc-relayer]
   - Fix pagination in gRPC query for clients ([#811])
+  - Fix relayer crash when hermes starts in the same time as packets are being sent ([#851])
 
 ### BREAKING CHANGES
 
@@ -19,6 +20,7 @@
 
 [#785]: https://github.com/informalsystems/ibc-rs/issues/785
 [#811]: https://github.com/informalsystems/ibc-rs/issues/811
+[#851]: https://github.com/informalsystems/ibc-rs/issues/851
 
 
 ## v0.2.0

diff --git a/relayer/src/chain/cosmos.rs b/relayer/src/chain/cosmos.rs
@@ -992,6 +992,10 @@ impl Chain for CosmosSdkChain {
                         "packet_from_tx_search_response: unexpected number of txs"
                     );
 
+                    if response.txs.is_empty() {
+                        continue;
+                    }
+
                     if let Some(event) = packet_from_tx_search_response(
                         self.id(),
                         &request,