📝 Unpolished Writing - Work in Progress

Full-stack App Architecture

4th October 2022
architecturefullstackframework

This is a live document and the log of our discussion related to the full-stack app development framework that we are building at GeekyAnts.

This is a part of the Productized Services that we want to offer to our clients and customers.

The tech stack

  • design-system: A UI component library built for React Native and React. This library is a part of the design system for the brands that we work with. We will deploy one of these per brand.
  • web:
    • Next.js project that uses the UI component library defined above
    • TypeScript (generated types for GraphQL layer)
    • mobile:
    • React Native mobile app that uses the UI component library
    • TypeScript (generated types for GraphQL layer)
  • api:
    • APISIX as the API Gateway
    • Hasura GraphQL with Postgres as the app persistent layer
    • Dapr as the Distributed Runtime for the backend business logic
    • n8n as the visual workflow manager

Untitled

Date: 6th Oct 2022

  • Express app for Authentication & Authorization as a service inside Dapr.

  • Standarization of the Express app so that we can boot more microservices.

    • Minimize the boilerplate with helper functions
    • Use helper functions to rebuild the same express app in a moleculer.js style

  • Introduce context-based data between microservices inside dapr (ctx.) similar to Moleculer.js

  • Test out:

    • PubSub for logging (pull strategy)
    • PubSub for sending out emails (using Dapr Component: Binding SMTP Messaging)

  • Use APISIX as the API Gateway

    • Dynamically inject services/routes in APISIX (not from the dashboard)
    • Allow Independently runnable service

  • Definition of a Service:

    • A service inside our backend project means a Standalone runnable application on a port number that can be mapped to a Dapr runtime.
    • These services can use Dapr Components as and when needed (eg: Binding, PubSub…)

  • Configurations

    • We need a local env DX to run these projects and boot Dapr Components needed by that particular service.
    • Dapr Services <> APISIX mapping in the code
    • Hasura <> APISIX mapping in the code