ProjectBuild an AI Voice Receptionist: the explanation · Module 5: Low-level design: data and protocols · part 7 of 23
Part 7 · Module 5: Low-level design: data and protocols
Module 5: Low-level design: data and protocols
24 min read·
About 45 minutes · Needs: Module 4 (the high-level design) · Code: backend/app/models/, backend/alembic/, backend/app/schemas/__init__.py, backend/app/voice/audio.py, backend/app/voice/session.py, backend/app/voice/stt.py
Where this fits
This module defines what flows between the highlighted parts (blue): the rows in Postgres, the messages on the voice socket and the interface between voice and the agent.
Module 4's high-level design drew the boxes. This module defines what flows between them: the rows Postgres keeps, the bytes and events on the voice WebSocket, and the Python interfaces where the voice part meets the brain. These three contracts are what let four parts of the code be built at the same time and still fit.
The rest of this project is yours to keep
This project is bought on its own, once, and stays readable afterwards, including the parts added to it later.