Reddit API for AI Agents

import OpenAI from "openai";
import { SubScraperClient } from "@subscraper/sdk";

const openai = new OpenAI();
const scraper = new SubScraper(process.env.SUBSCRAPER_API_KEY!);

// 1. Define the Reddit search tool for the model
const tools: OpenAI.ChatCompletionTool[] = [{
  type: "function",
  function: {
    name: "search_reddit",
    description: "Search Reddit for real-time user discussions and opinions",
    parameters: {
      type: "object",
      properties: {
        query: { type: "string", description: "Search keywords" },
        subreddit: { type: "string", description: "Specific subreddit" },
        time: { type: "string", enum: ["day", "week", "month", "year"] }
      },
      required: ["query"]
    }
  }
}];

// 2. Execute user query and trigger tool execution
const runner = await openai.chat.completions.create({
  model: "gpt-4o",
  messages: [{ role: "user", content: "What are real user complaints about Vector DBs?" }],
  tools
});

const call = runner.choices[0]?.message.tool_calls?.[0];
if (call && call.function.name === "search_reddit") {
  const args = JSON.parse(call.function.arguments);
  const data = await scraper.searchPosts(args);

  // 3. Feed live Reddit data back to synthesize response
  const grounded = await openai.chat.completions.create({
    model: "gpt-4o",
    messages: [
      { role: "user", content: "What are real user complaints about Vector DBs?" },
      runner.choices[0].message,
      { role: "tool", tool_call_id: call.id, content: JSON.stringify(data.data.slice(0, 5)) }
    ]
  });
  console.log(grounded.choices[0].message.content);
}