添加模型 — Downcity City SDK Docs

import { AIService, Provider } from "@downcity/city";

const deepseek = new Provider("deepseek", {
  baseURL: "https://api.deepseek.com/v1",
  envKey: "DEEPSEEK_API_KEY",
  passthroughModel: "deepseek-chat",
  text: myTextAction,
  stream: myStreamAction,
});

const ai = new AIService();
ai.use(deepseek.model({ id: "deepseek-v4-flash", name: "DeepSeek V4 Flash" }));
base.use(ai);

注册后自动生成路由：

POST /v1/ai/text              → SDK 通路
POST /v1/ai/stream            → SDK 通路
POST /v1/ai/chat/completions  → 自动透传到 DeepSeek
GET  /v1/ai/models            → 模型目录

passthroughModel 控制自动透传时发往上游的 model 值。