First method (node-fetch) code used.

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const fetch = require('node-fetch');

// Function to generate a unique userID
function generateUserID() {
    return 'user-' + Math.random().toString(36).substr(2, 9);
}

// Replace 'Your-Voiceflow-API-Key' with your actual Voiceflow API key
const voiceflowAPIKey = 'xxxx';

// Replace 'Your-Voiceflow-Version-ID' with your actual Voiceflow version ID
const versionID = '664306cd78c7ebbd97a364xx'; \\ I already tried with const versionID = 'production'

// Function to start the survey
async function startSurvey() {
    const userID = generateUserID();
    const voiceflowAPIEndpoint = `https://general-runtime.voiceflow.com/state/user/${userID}/interact`;

    const body = {
        "request": {
            "type": "text",
            "payload": "Welcome to My AI Beauty Advisor's Survey!"
        },
        "versionID": versionID
    };

    const options = {
        method: 'POST',
        headers: {
            'Authorization': `Bearer ${voiceflowAPIKey}`,
            'Content-Type': 'application/json'
        },
        body: JSON.stringify(body)
    };

    try {
        const response = await fetch(voiceflowAPIEndpoint, options);
        const data = await response.json();
        
        if (response.ok) {
            return JSON.stringify(data);  // If the call was successful
        } else {
            console.error('Voiceflow API Error:', data);  // Log detailed error
            return JSON.stringify({ error: data, userID: userID });
        }
    } catch (error) {
        console.error('Error connecting to Voiceflow:', error);
        return JSON.stringify({ error: 'Failed to connect to Voiceflow.', userID: userID });
    }
}

startSurvey().then(console.log).catch(console.error);

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