for blog

chatgpt.post.ts

// env
const config = useRuntimeConfig()
const OPENAI_API_KEY = config.openaiApiKey

// model
const MODEL_GPT35 = { name: 'gpt-3.5-turbo', endpoint: 'https://api.openai.com/v1/chat/completions' }
// const MODEL_GPT4 = { name: 'gpt-4', endpoint: 'https://api.openai.com/v1/chat/completions' }
const model = MODEL_GPT35

export default defineEventHandler(async (event) => {
  const { prompt } = await readBody(event)
  const payload = {
    model: model.name,
    'messages': [
      { 'role': 'system', 'content': 'You are a helpful assistant.' },
      { 'role': 'user', 'content': prompt },
    ]
  }
  console.log('payload', payload)

  const response = await fetch(model.endpoint, {
    headers: {
      'Content-Type': 'application/json',
      Authorization: `Bearer ${OPENAI_API_KEY ?? ''}`,
    },
    method: 'POST',
    body: JSON.stringify(payload),
  })

  const json = await response.json()
  console.log(JSON.stringify(json))
  return json
})