A try-catch statement protects an operation that may fail and routes execution to a catch block when an exception occurs. In AI applications, it prevents unhandled chain failures from terminating the request without a response. section 8.3.1 section 8.2.1
Wrap the awaited chain invocation rather than unrelated setup. The catch block can log the failure, classify the error, and return a user-facing fallback with a retry path. section 8.3.1 section 8.2.1
Protecting a runnable chain
const executeChain = async (input) => { try { const result = await chainGoogle.invoke({ question: input }); console.log('Result:', result); } catch (error) { console.error('Chain execution failed:', error); } }; executeChain('What is artificial intelligence?');
