Tích hợp LLM API, Structured Outputs & Function Calling

Structured Output với Zod

// File: src/ai/extractor.ts
import { OpenAI } from 'openai'
import { z } from 'zod'
import { zodResponseFormat } from 'openai/helpers/zod'

const ResumeSchema = z.object({
  candidateName: z.string(),
  yearsOfExperience: z.number(),
  skills: z.array(z.string()),
  matchScore: z.number().min(0).max(100)
})

export async function analyzeResume(resumeText: string) {
  const client = new OpenAI()
  const response = await client.beta.chat.completions.parse({
    model: 'gpt-4o-mini',
    messages: [{ role: 'user', content: resumeText }],
    response_format: zodResponseFormat(ResumeSchema, 'resume_analysis')
  })
  return response.choices[0].message.parsed
}