MemeTropolis backend is structured as a modular service-based backend, with key roles divided cleanly:

Key Components Copied

• Authentication Layer:

  • JWT-based authentication using

    passport-jwt

    .

  • Session and token management stored temporarily in cache/Redis.

• Blockchain Interaction:

  • Ethereum:

    ethers.js

    enables read/write to smart contracts (token transfers, NFT mints, etc).

  • Solana:

    @solana/web3.js

    and

    Anchor

    enable transactions with Solana programs.

• Database:

  • ORM via Prisma connecting to relational DB.

  • Migrations and schema management using

    prisma migrate

    .

• Caching:

  • Responses, sessions, and frequently queried data cached with Redis.

• GraphQL API:

  • Apollo client (and likely server) exposes flexible data fetching beyond REST.

• REST API:

  • Exposed via standard NestJS controllers and services.

• Monitoring/Health Check:

  • @nestjs/terminus handles health-check endpoints (DB, Redis, etc).

• Task Scheduler:

  • Jobs like refreshing blockchain states or purging expired caches handled by NestJS Scheduler.

10. Dependencies

Backend Repo Dependencies