Subgraph-style JS/Postgres indexer example

[heymide]

Close: #116

Summary

Created a reference Subgraph-style indexer for Wraith Protocol on Stellar!

What's included:

• Directory structure : stellar/examples/indexer/
• Tech stack : TypeScript, Fastify, Postgres, PostGraphile, Docker Compose
• Core features :
  • Ingests events from all 4 Wraith contracts (stealth-announcer, stealth-registry, stealth-sender, wraith-names)
  • Reorg-safe using watermark tracking and rollback to previous ledgers
  • GraphQL API for querying data (GraphiQL playground included)
• Files created :
  • package.json : Project dependencies and scripts
  • tsconfig.json : TypeScript configuration
  • docker-compose.yml : Docker setup for Postgres and indexer
  • Dockerfile : Container image for indexer
  • .env.example : Environment variables
  • schema.sql : Postgres database schema
  • src/db.ts : Database utilities
  • src/processor.ts : Event processor with reorg handling
  • src/server.ts : Fastify server with PostGraphile
  • src/index.ts : Main entry point
  • src/processor.test.ts : Test for reorg handling
  • README.md : Documentation

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[heymide]

Done, Close: #130

[truthixify]

No CI signal on this branch. It predates recent workflow fixes on develop (pnpm 10 corepack pin, ci.yml trigger updates, etc). Rebase against latest develop and force-push; CI will fire on the new commit and I'll see the real state.

[heymide]

No CI signal on this branch. It predates recent workflow fixes on develop (pnpm 10 corepack pin, ci.yml trigger updates, etc). Rebase against latest develop and force-push; CI will fire on the new commit and I'll see the real state.

Done, Kindly merge

[truthixify]

Merged. Nice work @heymide, the JS/Postgres indexer example is a great reference for downstream integrators.