OpenAI function calling example

openai_fn_call.js

#!/usr/bin/env node

import { Configuration as OpenAIConfig, OpenAIApi, ChatCompletionRequestMessageRoleEnum as Role } from 'openai'

const OPENAI_API_KEY = '?????'
const openai = new OpenAIApi(new OpenAIConfig({apiKey: OPENAI_API_KEY}))

const task = openai.createChatCompletion({
    model: 'gpt-3.5-turbo-0613',
    max_tokens: 2048,
    temperature: 0.5,
    messages: [
        {role: Role.User, content: 'Get location of this address: 23 Academy Ln, Demarest NJ 07627'},
    ],
    functions: [
        {
            name: "address_to_location",
            description: "Convert the address to lat,long",
            parameters: {
                type: "object",
                properties: {
                    line1: {type: "string", description: "Line1 of address"},
                    line2: {type: "string", description: "Line2 of address"},
                    city: {type: "string", description: "city"},
                    state: {type: "string", description: "state"},
                    zip: {type: "string", description: "zip"},
                },
                required: ["line1", "city", "state", "zip"]
            }
        }
    ],
})

task.then(res => console.log(JSON.stringify(res.data.choices)))