> For the complete documentation index, see [llms.txt](https://docs.b2winsuite.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.b2winsuite.com/5.5/scripting/scripting-in-b2data/custom-script-nodes/source-script-node-file.md).

# Source Script Node (File)

This node allows you to customize data extraction and manipulation then return as file to the following node.

Example: Read a file (e.g., a CSV file) and return it as a file object.

```javascript
return FileUtil.readFile("d:\\tmp\\file.csv");
```

#### Example: Retrieve data from API and return as File

```typescript
// Make an HTTP request to get exchange rates from the specified API
var request = HttpUtil.get("https://boi.org.il/PublicApi/GetExchangeRates");

// Parse the response body as JSON
var jsonContent = JsonUtil.parse(request.asString().getBody());

// Convert the exchange rates to a JSON string
var exchanges = JsonUtil.stringify(jsonContent.exchangeRates);

// Create a temporary file and write the exchange rates JSON to it
var tempFile = FileUtil.createTempFile("tmp.json", exchanges);

// Return the path to the created temporary file
return tempFile;
```

<figure><img src="https://lh7-us.googleusercontent.com/8Xoi6SnhoAAfFDBtEAwAOUMoohVCj6dkFXTawEASmqPIzmu4F6YDc2ZTPkv9-5xElYJONhW8lUwsZbv3IYv8SjAbJIqaTPmos07Fhz4vsPWB8kGPjDZOeIVwN58A-VVVAorCfGS9zMeyLpbZCFn8gaY" alt=""><figcaption><p>Script Source (File)</p></figcaption></figure>


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