> For the complete documentation index, see [llms.txt](https://spire-docs.gitbook.io/spire/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://spire-docs.gitbook.io/spire/preconf-rpc/submit-request.md).

# Submit Request

## Submit a preconf request

To submit a preconf request fill in the following `curl` template for `eth_sendRawTransaction` with the `params` containing your raw transaction.

The endpoint to send the request to is listed in [Networks](/spire/preconf-rpc/networks.md) and the query parameters to constrain your request are listed below.

| Parameter | Type    | Description                                                                                                                        |
| --------- | ------- | ---------------------------------------------------------------------------------------------------------------------------------- |
| deadline  | uint64  | Number of seconds to attempt to gain a preconf commitment                                                                          |
| fallback  | boolean | Upon failure to gain a commitment, or any other failure, should the preconf request be forwarded as a standard/non-preconf request |
| preconf   | boolean | Whether the request is a standard request or a preconf request                                                                     |

An example request to the holesky network:

{% tabs %}
{% tab title="Curl" %}

```sh
curl -X POST \
  'https://preconf.holesky.spire.dev/v0/?deadline=3&fallback=true&preconf=true' \
  -H "Content-Type: application/json" \
  --data '{
    "jsonrpc":"2.0",
    "method":"eth_sendRawTransaction",
    "params":["0xRAW_TX_HERE"],
    "id":1
  }'

```

{% endtab %}

{% tab title="Cast" %}

```bash
cast rpc \
  --rpc-url "https://preconf.holesky.spire.dev/v0/?deadline=3&fallback=true&preconf=true" \
  eth_sendRawTransaction "0xRAW_TX_HERE"
```

{% endtab %}

{% tab title="Rust/Alloy" %}

```rust
use alloy::providers::{Provider, ProviderBuilder};
use alloy::rpc::types::eth::RawTransactionRequest;
use alloy::transport::http::Http;
use alloy::primitives::Bytes;

#[tokio::main]
async fn main() -> eyre::Result<()> {
    let url = "https://preconf.holesky.spire.dev/v0/?deadline=3&fallback=true&preconf=true";
    let provider = ProviderBuilder::new().connect_http(url)?;

    let raw_tx: Bytes = "0xRAW_TX_HERE".parse()?;
    let tx_hash = provider.send_raw_transaction(raw_tx).await?;

    println!("tx hash: {:?}", tx_hash);
    Ok(())
}
```

{% endtab %}

{% tab title="Go" %}

```go
client, err := ethclient.Dial("https://preconf.holesky.spire.dev/v0/?deadline=3&fallback=true&preconf=true")
if err != nil {
    log.Fatal(err)
}

rawTx := common.FromHex("0xRAW_TX_HERE")
txHash, err := client.SendRawTransaction(context.Background(), rawTx)
if err != nil {
    log.Fatal(err)
}

fmt.Println("tx hash:", txHash.Hex())

```

{% endtab %}

{% tab title="JS/Ethers" %}

```javascript
import { ethers } from 'ethers';

const provider = new ethers.JsonRpcProvider(
  "https://preconf.holesky.spire.dev/v0/?deadline=3&fallback=true&preconf=true"
);

const rawTx = "0xRAW_TX_HERE";

(async () => {
  const txHash = await provider.send("eth_sendRawTransaction", [rawTx]);
  console.log("tx hash:", txHash);
})();

```

{% endtab %}

{% tab title="Python/Web3" %}

```python
from web3 import Web3

w3 = Web3(Web3.HTTPProvider(
    "https://preconf.holesky.spire.dev/v0/?deadline=3&fallback=true&preconf=true"
))

raw_tx = "0xRAW_TX_HERE"
tx_hash = w3.eth.send_raw_transaction(raw_tx)

print("tx hash:", tx_hash.hex())

```

{% endtab %}
{% endtabs %}

The router will respond with the hash of your transaction but that transaction may not appear in any block explorer until a preconfer has submitted it to the mempool or the router failed to get a commitment and forwarded the request to a standard RPC provider.

The hash is used as a parameter to query so save it for the next step.

```json
{
  "id":1,
  "jsonrpc":"2.0",
  "result":"0x..."
}
```

## Submit a standard request

To submit a non-preconf request i.e. use the router to forward your request to a RPC provider either change the method (and the rest of the body) to not be `eth_sendRawTransaction` or in the url specify the `preconf=false` parameter.


---

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