Automate try-catch error handling in JavaScript Express API routes.
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JavaScript developers often struggle with inconsistent error handling across Express API routes, leading to hard-to-debug failures and missed user feedback in the ECP codebase.
Apply these guidelines to an Express API route in the api/ directory and wrap all async handlers with proper error handling.
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Consistent error handling in Express API routes is enforced by wrapping async route handlers in try-catch blocks to prevent unhandled rejections and ensure reliable API responses.
To standardize error responses in JavaScript Express applications, use a dedicated function like setErrorResponse(res, title, detail, status) to return consistent client feedback across all route handlers.
Unhandled promise rejections in Express route handlers are prevented by applying try-catch wrapping to all async handlers within the api/ directory, catching errors before they crash the service.
Use 400 status codes for client errors and 500 status codes for server errors when handling API responses in Express, ensuring the correct error type is communicated to the client.
These JavaScript coding standards apply to API route files under the api/ directory across Express-based services, covering route handlers, middlewares, and error response patterns.
Logging errors with console.error before returning an API response provides observability and safety, capturing the failure details in the service logs before sending the standardized error response to the client.
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