api-gateway

API Gateway Service

[!NOTE] This is the gateway service that serves as an interface for external clients, leveraging multiple communication protocols and API designs.

ADR

• ADR-0001 - Init project
• ADR-0002 - Split API Gateway Service into Separate Services for Each Protocol
• ADR-0003 - Adding WebSocket Protocol Support

HTTP API

Supported Protocols:

• GraphQL API: An excellent alternative to REST APIs for handling complex, interrelated data structures.
• WebSocket API: A protocol that enables two-way persistent communication channels over TCP connections.
  • WebSocket API Docs
• gRPC-gateway: Provides a way to call gRPC methods over HTTP, making your gRPC service more accessible to more client types.
  • Swagger docs
• CloudEvents (Optional): An open-standard specification for defining event data in a common way, facilitating interoperability across services, platforms, and systems.
  • CloudEvents Docs

Architecture

We use the C4 model to describe architecture.

System context diagram

!include https://raw.githubusercontent.com/shortlink-org/shortlink/main/docs/c4/containers/preset/common.puml
!include https://raw.githubusercontent.com/shortlink-org/shortlink/main/docs/c4/containers/preset/c1.puml

!include actors/customer.puml

!include boundaries/gateway.puml
!include boundaries/auth.puml
!include boundaries/link.puml

customer --> gatewayBoundary : uses
gatewayBoundary --> authBoundary : check auth
gatewayBoundary --> linkBoundary : create link