Kas on võimalik luua REST-i abil asünkroonset suhtlust teenuste vahel?

REST is an architectural style for synchronous interaction over the HTTP protocol, where the client makes a request and waits for a response. However, asynchronous interaction between services with REST is possible if additional mechanisms are used, for example:

• The client sends a request to perform a task, the service responds immediately that the task has been accepted, and the result will be ready later.
• The client periodically polls the service to check if the result is ready.
• Using webhook notifications, where the service itself notifies the client about readiness.

Thus, REST by itself does not ensure asynchrony, but with patterns and additional mechanisms, asynchronous interaction can be implemented. For more natural asynchrony, message queues (RabbitMQ, Kafka) or protocols supporting push events (WebSocket, gRPC) are often used.