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feat(ai): add schema validation and cleanup to Gemini revenue model g… #1

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feat(ai): add schema validation and cleanup to Gemini revenue model g… #1

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19 changes: 17 additions & 2 deletions backend/models/revenueModel.js
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,7 @@ const generateRevenue = async (data) => {

try {
const response = await axios.post(
MODEL_URL + `?key=${GEMINI_API_KEY}`,
`${MODEL_URL}?key=${GEMINI_API_KEY}`,
{
contents: [{ parts: [{ text: prompt }] }]
},
Expand All @@ -48,7 +48,22 @@ const generateRevenue = async (data) => {
// Remove markdown formatting if present
rawText = rawText.replace(/```json|```/g, '').trim();

return JSON.parse(rawText);
// ✅ Validate if JSON-looking structure and expected keys are present
if (
!rawText.includes('{') ||
!rawText.includes('revenueStreams') ||
!rawText.includes('pricingStrategy') ||
!rawText.includes('expectedMonthlyRevenue') ||
!rawText.includes('growthOpportunities')
) {
throw new Error("Unexpected or malformed response format from Gemini.");
}

console.log("🧠 Gemini raw response:", rawText);

// Now safe to parse
return JSON.parse(rawText);

} catch (error) {
console.error('Gemini Revenue Model Error:', error.response?.data || error.message);
throw new Error('Failed to generate Revenue Model from Gemini');
Expand Down