gRPC vs REST | Rasna | Gurzu

Rasna compares gRPC and REST, exploring their explored their key differences.

Transcript

1. gRPC or REST
2. Agenda ❖ API, Types and Specifications. ❖ What is REST? ❖ Disadvantages of REST. ❖ What is gRPC? ❖ Advantages of gRPC.
3. What is an API?
4. Whats is an API? ❖ API stands for Application Programming Interface. ❖ Acts as a communication bridge between two systems. ❖ Enables software components to interact seamlessly. ➢ Example: Mobile app requesting weather data from a server.
5. Types of APIs ❖ Web APIs: Interact over the internet (e.g., REST, gRPC). ❖ Library APIs: Access pre-built code libraries. ❖ OS APIs: Enable interaction with OS features. ❖ Hardware APIs: Interface with physical devices. ➢ Example: Mobile app requesting weather data from a server.
6. API Specification ❖ Definition: A document that describes how to interact with an API. ❖ Includes: ▪ Endpoints. ▪ Methods (GET, POST, etc.). ▪ Data formats (JSON, XML, Protobuf). ▪ Authentication and error handling. ❖ Ensures consistency and predictable integration. ➢ Popular API specification formats: RESTful APIs, GraphQL, SOAP, gRPC
7. REST || gRPC
8. REST ❖ Representational State Transfer ❖ Not a protocol but a Design Pattern ❖ Uses HTTP protocol ❖ Objects that are send or saved are called resources ❖ Operations are described by HTTP verbs ❖ Transfer data as XML or JSON
9. ❖ A RESTful API can be - XML + HTTP JSON + HTTP
10. What does a RESTful API call look like?
11. Disadvantage of REST ❖ The data being transferred is heavily bloated.
12. Bloated Data
13. Disadvantage of REST ❖ The data being transferred is heavily bloated. ❖ There is no formal contract to communicate. ❖ HTTP verb don’t always describe your API. ❖ Streaming is difficult.
14. What if not REST?
15. gRPC ❖ gRPC Remote Procedure Call ❖ Modern open-source RPC framework by Google ❖ High Performance RPC framework ❖ Uses HTTP/2 for efficient data transmission. ❖ Uses Protocol Buffers for message interchange and for the fast binary serialization.
16. Writing a gRPC Service (3 Steps)
17. Let's make a calculator service:
18. ❖ Interface Definition Language (IDL) ❖ Message Interchange format ❖ Platform neutral mechanism for serializing structured data. Protocol Buffers
19. Let's make a calculator Services:
24. ❖ Generated code in 10 language ❖ Strict contract between client and server ❖ Performant and efficient on the wire Small binary message Faster serialization and deserialization ❖ In addition to traditional unary APIs, we get: Client Streaming APIs Server Streaming APIs Bi-Directional Streaming APIs Why gRPC? What do I get?
25. ❖ High-Performance Systems: Ideal for APIs and microservices requiring speed and efficiency, thanks to HTTP/2 and Protocol Buffers. ❖ Distributed Systems: Advanced features like authentication, bidirectional streaming, and flow control make it powerful for distributed architectures. ❖ Polyglot Environments: Supports multiple languages, enabling APIs for diverse client ecosystems. ❖ Mobile Apps: Efficient network usage and bidirectional streaming make it suitable for mobile API consumption. When to use gRPC?
26. ★ https://grpc.io/ ★ https://github.com/grpc ★ https://grpc.io/docs/ More about gRPC
27. Thank you!!