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https://github.com/i-am-bee/bee-api

API backend for Bee
https://github.com/i-am-bee/bee-api

agents ai api assistants-api bee-agent-framework fastify

Last synced: 20 days ago
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API backend for Bee

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README

        



Bee API

OpenAI-compatible Assistants API backed by [Bee Agent Framework](https://github.com/i-am-bee/bee-agent-framework)

## Getting started

1. Create `.env` (from `.env.example`) and fill in values.
2. Run `pnpm install` to install dependencies.
3. Start the server with `pnpm start:dev`

## Technologies

- [Fastify](https://fastify.dev/) as the web framework
- [MikroORM](https://mikro-orm.io/) backed by [MongoDB](https://www.mongodb.com/) as the database layer
- [BullMQ](https://docs.bullmq.io/guide/jobs) backed by [Redis](https://redis.io/) as the job executor
- [Bee Agent Framework](https://github.com/i-am-bee/bee-agent-framework) as the agent execution engine

## Architecture overview

The Assistants API consists mostly of CRUDL endpoints for managing API resources like assistants, threads, runs and more. Furthermore, some resources are asynchronous in a sense that they contain `status` changing over time as the background execution progresses. Clients use polling or streaming to watch for status updates of such resources.

### Infrastructure

The infrastructure consists of:
- REST API server
- MongoDB
- Redis

The REST API server stores resources in MongoDB database. Redis is used by BullMQ, rate limiter and as pub/sub broker for event streaming. Agent execution is performed by the Bee Agent Framework using various adapters for inference and embeddings.

### Server

The codebase contains several types of modules:
- `*.modules.ts` containing endpoint handlers
- `*.services.ts` containing services for the handlers
- `dtos/*.ts` containing JSON schema definitions for resources
- `*.entity.ts` containing ORM definitions for database entities
- `*.queue.ts` containing BullMQ queues and workers for asynchronous execution

These modules are connected in the following manner

```
module ---> dto
---> service ---> entity
---> queue ---> entity
```

OpenAPI schema is auto-generated from the `dtos` and exposed on the `/docs` endpoint.