> For the complete documentation index, see [llms.txt](https://docs.manifold.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.manifold.xyz/client-sdk/sdk/product/blind-mint/fetchonchaindata.md).

# fetchOnchainData

**fetchOnchainData()** → [BlindMintOnchainData](https://app.gitbook.com/o/FkM3zqPi1O0VypWXgiUZ/s/wX9Yl8DLygpenDBVWGPF/~/changes/1/references/blindmintonchaindata)

Retrieves on-chain data and assigns the `onchainData` properties to the [product](/client-sdk/sdk/product.md) object.

#### Example

```tsx
const product = await sdk.getProduct('31231232')
await product.fetchOnchainData()
console.log(`cost: ${product.onchainData.cost.formatted}`)
```