Comment gérer les erreurs et les exceptions dans les microservices et les API ?

When deciding how to design your standard error codes and formats, consider what system (or human) will be receiving or interpreting the errors. If your errors are meant to be viewed by a user, it's more important to use human-understandable messages like 'Not logged in' or 'Resource not found'. Conversely, messages intended for machine recipients can use lower-level messages like HTTP status codes.

Em ambientes de microsserviços e API, o gerenciamento eficiente de erros é crucial. Ressaltamos a importância de ter códigos de erro padronizados e um formato consistente para facilitar a identificação e resolução de problemas. O uso de códigos de status HTTP simplifica a comunicação do status da solicitação, enquanto formatos estruturados como JSON ou XML podem fornecer detalhes claros sobre erros. A documentação abrangente de códigos e formatos personalizados é fundamental para alinhar equipes e partes interessadas. Esta abordagem não só melhora a experiência do usuário, mas também simplifica a manutenção em um ambiente distribuído, resultando em microsserviços mais robustos e eficientes

Strengthen the services against operational errors and security threats, focus on implementing secure error handling, thoroughly validating inputs, and enforcing strong authentication and authorization

From my perspective on good API design and error handling, it's essential to maintain human-readable, understandable error messages with specific error codes. This approach is incredibly beneficial for end users because developers, who are also humans, will be the first to encounter these messages. Balancing clarity and detail in these errors is crucial for effective debugging and a smoother user experience.

Error Reporting should be clear and understandable. Standard Exception errors should be converted into human-readable text, to get the user to understand the error. Many errors can be resolved by the end-user without the need to contact support and open a ticket.

To manage transient issues, implement retry policies with exponential backoff. Also, set sensible timeouts to avoid prolonged waiting due to unresponsive services. Tools like circuit breakers can prevent cascading failures in interconnected services.

Make sure to validate and sanitize any inputs from API requests to avoid exceptions due to bad data. - Use monitoring tools to have visibility into all exceptions and errors happening in production for observability. Metrics and dashboards help spot issues.

In addition to the recommendations mentioned above, here are some other tips for implementing retries and timeouts: -Set limits on retries: It is important to set limits on retries. This will help prevent applications from getting stuck in a retry loop. Log retries: It is important to log retries. This will help understand the cause of errors and take action to resolve them. -Test retries: It is important to test retries. This will help ensure that they work correctly.

Realmente los errores de red y la lactancia son desafios significativos en el entorno de microservicios y APIs. Implementar estrategias de como reintento, tiempo de espera y mecanismos circuit breack es crucial para mejorar la estabilidad del sistema, y herramientas como Istio o Hystrix puede facilitar la gestión de estas funciones a nivel de cliente o Malka de servicios.

To handle temporary problems, use retry policies with increasing delays (exponential backoff). Additionally, establish reasonable timeouts to prevent long waits caused by unresponsive services. Utilize tools like circuit breakers to stop the spread of failures between connected services.

Logging and monitoring can help you access and better analyze the system based on the user feedback and bug reports. It can also help you create report for future references that can help you fix bugs that have occured in the past easily.

Splunk is easy to configure and use to debug the logs while error handing in Microservices in diff layers of distributed system.

Implement comprehensive error logging to capture details about errors. This helps in diagnosing issues quickly and effectively. Include relevant information such as timestamps, request details, and stack traces.

Overall, the article is an excellent introduction to error and exception handling in microservices and APIs. The article is clear, concise, and well-organized. The article also provides valuable information on the different strategies for handling errors and exceptions, as well as the importance of logging errors and exceptions.

Implement comprehensive logging to capture errors and warnings. Utilize monitoring tools to track these logs, performance metrics, and health checks. This helps in proactively identifying and troubleshooting issues.

Utilize patterns like the ‘Fallback’ pattern for providing default responses in case of failures, or the ‘Bulkhead’ pattern to isolate failures within one service from affecting others. These patterns help in maintaining service stability.

Use a global exception handler middleware that catches any unhandled exceptions across your controllers and handles them in a consistent way. This way they don't bubble up and break your API server. - Implement retry logic and circuits breakers when calling another microservice API - if it is temporarily down or unreachable your app should handle it gracefully.

To handle errors and exceptions in microservices and APIs we can use error handling pattern and then monitoring to data that what happen about this.

Don't kill downstream services with retires, allow them to recover. Not all errors can recover. Metrics on retries are essential to verify how other reliant other systems are.

In a distributed microservice environment consider Event sourcing, In cases of failure, microservice can replay events from the event store to calculate and restore the appropriate state of their data stores. For example if you discover a bug, fix it and hit replay.

1. Tratamento de erros adequado: Certificar de que seu código está preparado para lidar com possíveis erros e exceções de forma adequada, usando try/catch ou blocos de tratamento de erro.

Perform extensive testing, including unit tests, integration tests, and end-to-end tests. Use debugging tools and techniques to identify and fix issues. Testing in a production-like environment can help catch errors that might not appear in development.

A mi me a resultado útil hacer pruebas exhaustivas y regulares me a ayudado a prevenir y solucionar problemas en los microservicios y APIs. Las pruebas unitarias, de integración y de contrato son fundamentales para garantizar la calidad el cumplimiento y la confianza en el funcionamiento de los microservicios y APIs.

In the contemporary dynamics of agile API development, the practice of frequent updates necessitates careful versioning management to ensure the continuous operability of existing systems. Semantic versioning, up-to-date documentation, automated regression testing, isolated environments, a deprecation policy, continuous monitoring, and open communication channels are critical elements in this process. These practices ensure that changes do not negatively impact existing systems, allowing for constant evolution in response to the demands of agile development.

Another thing to consider is to have automated tests to simulate error conditions and validate your exception handling logic works pre-deployment.

Global exception handling is crucial it keeps the handling logic at a centralized place which allows easy maintenace as well as helps in monitoring and generating alerts easily based on the provided rules. The exceptions are easily traceable when integrated with monitoring tools like ELK. For better traceability it is important to have a unique API and a request id associated to each request so the request trail can be identified.

Other important methods to consider are: - Writing clear documentation: this is sometimes under-looked but very crucial. Providing a clear and comprehensive document for APIs including information on potential errors and how to handle them is key to reducing the number of errors between API calls - Logging: error monitoring and logging makes it easier to detect and respond to errors

Use proper HTTP status codes to indicate errors to API consumers. For example, 400 for bad requests, 401 for unauthorized, 403 for forbidden, 404 for not found, etc. These should return error details in the response body.

APIs are subject to attacks - error and exceptions occuring on your services may be indicative of malicious attempts. You may want to lower the rate limit for sources that have high error and/or exception rates (an error/exception could count for more than one request for instance). Logging these requests for review or at the least find out how something led to a successful attempt may be useful. Some even throw AI at their logs for preventive intrusion detection, so the traces may serve there as well.

Padronização de respostas de erro:Utilizar códigos de status HTTP apropriados, além de mensagens de erro claras e padronizadas para facilitar a compreensão por parte dos consumidores da API.