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MinglarBackendNestJS/insertCities.js

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import { PrismaClient } from '@prisma/client';
import fs from 'fs';
import path from 'path';
const prisma = new PrismaClient();
async function insertCities() {
try {
const statesFolder = path.join(process.cwd(), 'states-cities');
const files = fs.readdirSync(statesFolder);
for (const file of files) {
if (!file.endsWith('.json')) continue;
const stateName = file.replace('.json', '');
const state = await prisma.states.findFirst({
where: { stateName },
});
if (!state) {
console.log(`❌ State not found: ${stateName}`);
continue;
}
const filePath = path.join(statesFolder, file);
const citiesData = JSON.parse(
fs.readFileSync(filePath, 'utf-8')
);
await prisma.cities.createMany({
data: citiesData.map((city) => ({
stateXid: state.id,
cityName:
typeof city === 'string'
? city.trim()
: city.cityName.trim(),
})),
skipDuplicates: true,
});
console.log(`${stateName} cities inserted`);
}
console.log('🎉 All cities inserted successfully');
} catch (error) {
console.error('Error inserting cities:', error);
} finally {
await prisma.$disconnect();
}
}
insertCities();