What types of write operations were used in your microservice in your last position?

In a microservices architecture, write operations may include:

• Creating new records (Insert): adding new data to the database.
• Updating existing records (Update): modifying data based on a specific identifier.
• Deleting records (Delete): removing data from the database.

Depending on the microservice requirements, write operations can be synchronous or asynchronous. For example, message queues (Kafka, RabbitMQ) are often used for asynchronous writing to improve performance and fault tolerance.

Example: In an order microservice, when a new order is created, a record is written to the database (Insert), and then an event is sent to a queue for processing payment or notification.

Patterns such as Event Sourcing are also used, where all state changes are stored as a sequence of events, allowing state recovery and providing auditability.