Microservice pattern: Remote procedure invocation #2680
Description
Description
The Microservices - Remote Procedure Invocation (RPI) design pattern is crucial for enabling microservices to communicate effectively in a distributed system. This pattern allows a program to cause a procedure to execute in another address space (commonly on another physical machine). The procedure call is abstracted to appear as a local function call, though it is executed remotely.
Main Elements of the Pattern:
- Service Definition: Defines the methods and parameters that can be called remotely.
- Client Proxy: Acts as a local representative for the remote service. It abstracts the complexity of remote communication.
- Network Protocol: Handles the transmission of requests and responses between client and server.
- Server Stub: Unpacks the requests, executes the corresponding service methods, and packs the results to be sent back to the client.
- Serialization/Deserialization: Transforms data structures or objects into a format that can be easily transmitted and reconstructed.
- Error Handling: Manages issues like network failures, timeouts, and service unavailability.
References
Acceptance Criteria
- Implement a basic example of the RPI design pattern demonstrating remote communication between microservices.
- Include comprehensive unit and integration tests to ensure reliable communication and proper error handling.
- Update the project documentation to include an explanation of the RPI pattern, its implementation details, and usage instructions.