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What is a drawback of synchronous communication in microservices?
In environments like this, synchronous communication add some difficulties to the system. When a service calls another service, and this service does not respond in time (or does not respond at all), the calling service will also fail because it was expecting a response.
What is the difference between synchronous and asynchronous communications?
There are a few differences between synchronous and asynchronous communication. The main difference is that synchronous communications happen in the moment, meaning that it’s faster and more dynamic. Conversely, asynchronous communication happens over a period of time, so there’s no need to schedule anything!
How are rest and messaging used in microservices?
Most communications between microservices is via either HTTP request-response with resource API’s or lightweight messaging. While these two mechanisms are by far the most commonly used, they’re quite different, so I’d like to explain when it comes to deciding between REST vs Messaging for Microservices, which scenarios call for each.
How is a synchronous communication style used in a microservice?
A de-centralized and synchronous communication style intercepts a flow at the entry point. The interceptor forwards the request to the next step and awaits a response. This cycle continues downstream until all services have completed their execution. Each service can execute one or more downstream service sequentially or in parallel.
What do you mean by communication between microservices?
Many architects have divided inter-communication between microservices into synchronous and asynchronous interaction. Let’s take these one by one. When we say synchronous, it means the client makes a request to the server and waits for its response. The thread will be blocked until it receives communication back.
What’s the difference between event driven and restful microservices?
The solution to many of the shortcomings associated with RESTful/synchronous interactions is to combine the principles of event-driven architecture with microservices. Event Driven Microservices (EDM) are inherently asynchronous and are notified when it is time to perform work.