From 99620063bc25df329bc2028cb71081af344f358c Mon Sep 17 00:00:00 2001 From: itowlson Date: Tue, 23 Nov 2021 15:33:41 +1300 Subject: [PATCH] Make errors slightly less worse --- src/handlers.rs | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/src/handlers.rs b/src/handlers.rs index 44ef42a..1f4eb02 100644 --- a/src/handlers.rs +++ b/src/handlers.rs @@ -53,7 +53,13 @@ impl WasmRouteHandler { self.set_up_runtime_environment(matched_route, req, request_body, request_context, global_context, logging_key)?; self.spawn_wasm_instance(instance, store, stream_writer.clone()); - let response = compose_response(stream_writer).await?; // TODO: handle errors + let response = match compose_response(stream_writer).await { + Ok(r) => r, + Err(e) => { + tracing::error!("Error parsing guest output into HTTP response: {}", e); + internal_error("internal error calling application") + } + }; tokio::task::yield_now().await; @@ -87,11 +93,18 @@ impl WasmRouteHandler { let entrypoint = self.entrypoint.clone(); let wasm_module_name = self.wasm_module_name.clone(); + // This is fire and forget, so there's a limited amount of error handling we + // can do. tokio::spawn(async move { match run_prepared_wasm_instance(instance, store, &entrypoint, &wasm_module_name) { - Ok(()) => stream_writer.done().unwrap(), // TODO: <-- - Err(e) => tracing::error!("oh no {}", e), // TODO: behaviour? message? MESSAGE, IVAN?! + Ok(()) => (), + Err(e) => tracing::error!("Error running Wasm module: {}", e), }; + // TODO: should we attempt to write an error response to the StreamWriter here? + match stream_writer.done() { + Ok(()) => (), + Err(e) => tracing::error!("Error marking Wasm output as done: {}", e), + } }); }