Created
June 29, 2025 03:07
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CopilotKit with Ollama and OpenAI API compatibility
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| import { | |
| CopilotRuntime, | |
| copilotRuntimeNextJSAppRouterEndpoint, | |
| LangChainAdapter, | |
| OpenAIAdapter, | |
| langGraphPlatformEndpoint | |
| } from "@copilotkit/runtime"; | |
| import { NextRequest } from "next/server"; | |
| import { ChatOpenAI } from "@langchain/openai"; | |
| import config from "../../config"; | |
| // using langchain to create a chat model using the ollama with OpenAI API compaitibility | |
| const lc_ollamaModel = new ChatOpenAI({ | |
| model: "qwen3:14b", // the local model to use | |
| configuration: { | |
| baseURL: "http://localhost:11434/v1", // the ollama proxy URL | |
| }, | |
| }); | |
| const copilotKitModel = lc_ollamaModel; | |
| const langchainServiceAdapter = new LangChainAdapter({ | |
| chainFn: async ({ messages, tools }) => { | |
| console.log("tools", tools); | |
| console.log("messages", messages); | |
| return copilotKitModel.bindTools(tools).stream(messages); | |
| } | |
| }); | |
| const runtime = new CopilotRuntime({ | |
| remoteEndpoints: [ | |
| langGraphPlatformEndpoint({ | |
| deploymentUrl: config.agent.url, | |
| langsmithApiKey: process.env.LANGSMITH_API_KEY || "", // only used in LangGraph Platform (cloud) deployments | |
| agents: [{ | |
| name: config.agent.name, | |
| description: config.agent.description | |
| }] | |
| }) | |
| ] | |
| }); | |
| export const POST = async (req: NextRequest) => { | |
| const { handleRequest } = copilotRuntimeNextJSAppRouterEndpoint({ | |
| runtime, | |
| serviceAdapter: langchainServiceAdapter, | |
| endpoint: "/api/copilotkit", | |
| }); | |
| return handleRequest(req); | |
| }; | |
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