implement SQL export in prisma api

pages/api/data/prisma/[...model].ts

@@ -17,6 +17,37 @@ const parseQueryParams = (query: any) => {
     };
 };
 
+
+// Helper function to escape and quote strings, handle nulls and other types
+const serializeValue = (value) => {
+    if (value === null || value === undefined) {
+        return 'NULL';
+    }
+    if (typeof value === 'string') {
+        return `'${value.replace(/'/g, "''")}'`; // escape single quotes in SQL string
+    }
+    if (typeof value === 'boolean') {
+        return value ? 'true' : 'false';
+    }
+    if (typeof value === 'number') {
+        return value;
+    }
+    if (Array.isArray(value) || typeof value === 'object') {
+        // Convert arrays and objects to JSON strings and escape them
+        return `'${JSON.stringify(value).replace(/'/g, "''")}'`;
+    }
+    return value;
+};
+
+// Function to generate SQL INSERT statements from data
+const generateSQL = (data, tableName) => {
+    return data.map(item => {
+        const columns = Object.keys(item).join(", ");
+        const values = Object.values(item).map(serializeValue).join(", ");
+        return `INSERT INTO ${tableName} (${columns}) VALUES (${values});`;
+    }).join("\n");
+};
+
 export default async function handler(req: NextApiRequest, res: NextApiResponse) {
     const prisma: PrismaClient = common.getPrismaClient();
     const modelArray = (req.query.model || (req.body && req.body.model)) as string[];
@@ -39,7 +70,15 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
             throw new Error(`Model ${modelName} not found in Prisma client.`);
         }
         const result = await prisma[modelName].findMany(queryOptions);
-        res.status(200).json(result);
+        if (req.query.format === 'sql') {
+            // Generate SQL if requested via query parameter
+            const sql = generateSQL(result, modelName);
+            res.setHeader('Content-Type', 'application/sql');
+            res.send(sql);
+        } else {
+            // Normal JSON response
+            res.status(200).json(result);
+        }
     } catch (error) {
         console.error(error);
         res.status(500).json({ error: error.message });