API Gateway

Manages all other microservices, and exposes an API for frontend clients to use.

Goals of this project:

Learn about microservices
Learn about gRPC
Be able to use this service along with other microservice (have an API Gateway, a frontend in React, and interact with a To-Dos service.

To-do:

Expose a REST Server
Add a validator external package
Interact with other gRPC servers such as the Users gRPC, and the To-dos gRPC (microservices)
Validate authorization tokens (JWTs) for protected endpoints.
Add data from to-dos gRPC
Refactor repeated code in middleware.

Overall project architecture

API Gateway

REST API (returns in JSON)
A client for all the gRPC microservices (reads all the gRPC services).
Responsible for the interactions between all the microservices.

Users gRPC

Manages the users in the architecture

To-dos gRPC

Manages all the to-dos.
Maybe will be used for note-taking as well.

Frontend

In React, will only call and use data from the API Gateway.