Dry run

Set options.dryRun to true to simulate the update process. The API returns a detailed report of the changes that would have been applied without modifying any data in your database. This is useful for testing complex filters or validation rules before executing them.

Manta data table

TypeScript

const preview = await manta.updateRecords({
  table: "products",
  data: { price: 149.99 },
  where: { category_id: "electronics" },
  options: {
    dryRun: true,
  },
});

console.log('Preview of changes:', preview.data.wouldUpdate);

PostgreSQL

TypeScript

const preview = await manta.updateRecords({
  db: "inventory_pg",
  table: "products",
  data: { price: 149.99 },
  where: { category_id: "electronics" },
  options: {
    dryRun: true,
  },
});

console.log('Preview of changes:', preview.data.wouldUpdate);