What is JSON RPC and what are its advantages and disadvantages?

JSON-RPC is a simple remote procedure call (RPC) protocol that uses JSON to encode messages. It allows a client to call methods on a server, passing parameters and receiving results in JSON format.

Advantages:

• Lightweight and easy to implement.
• Platform and language independent.
• Supports both synchronous and asynchronous calls.
• Clear and compact message format.

Disadvantages:

• Lack of built-in support for complex data types (requires serialization).
• No standard security mechanisms, need to implement separately.
• Less functionality compared to more complex protocols (e.g., SOAP).

JSON-RPC is well-suited for simple services and microservices where ease and speed of data exchange are important.