> For the complete documentation index, see [llms.txt](https://docs.getblock.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.getblock.io/api-reference/bitcoin-gold-btg/btg_fundrawtransaction.md).

# fundrawtransaction - Bitcoin Gold

Example code for the fundrawtransaction json-rpc method. Сomplete guide on how to use fundrawtransaction json-rpc in GetBlock.io Web3 documentation.

#### Parameters

`hexstring` - string, required

The hex string of the raw transaction

`options` - json object, optional

for backward compatibility: passing in a true instead of an object will result in {"includeWatching":true}

`iswitness` - boolean, optional, default=depends on heuristic tests

Whether the transaction hex is a serialized witness transaction.

If iswitness is not present, heuristic tests will be used in decoding.

If true, only witness deserialization will be tried.

If false, only non-witness deserialization will be tried.

This boolean should reflect whether the transaction has inputs (e.g. fully valid, or on-chain transactions), if known by the caller.

#### Request

```java
curl --location --request POST 'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{"jsonrpc": "2.0",
"method": "fundrawtransaction",
"params": ["hexstring", "", null],
"id": "getblock.io"}'
```

#### Response

```java
{
    "error": null,
    "id": "getblock.io",
    "result": "010000000001010000000000000000000000000000000000000000000000000000000000000000ffffffff1b035025390485393661087ddf058133cfb60008694f6f417068647100000000020065cd1d0000000017a914875ff5ac568b44a58b7f71df71e6d8288725a9a7870000000000000000266a24aa21a9ede2f61c3f71d1defd3fa999dfa36953755c690689799962b48bebd836974e8cf90120000000000000000000000000000000000000000000000000000000000000000000000000"
}
```