//! Example of using the reqwest HTTP client with an `Authorization` header to get the latest block

//! number.

use alloy::{

providers::{Provider, ProviderBuilder},

rpc::client::RpcClient,

transports::http::{

reqwest::{

header::{HeaderMap, HeaderValue, AUTHORIZATION},

Client,

},

Http,

},

};

use eyre::Result;

#[tokio::main]

async fn main() -> Result<()> {

// Set the Authorization header.

let mut headers = HeaderMap::new();

headers.insert(AUTHORIZATION, HeaderValue::from_static("deadbeef"));

// Create the reqwest::Client with the AUTHORIZATION header.

let client_with_auth = Client::builder().default_headers(headers).build()?;

// Create the HTTP transport.

let rpc_url = "https://eth.merkle.io".parse()?;

let http = Http::with_client(client_with_auth, rpc_url);

let rpc_client = RpcClient::new(http, false);

// Create a provider with the HTTP transport.

let provider = ProviderBuilder::new().on_client(rpc_client);

// Get latest block number.

let latest_block = provider.get_block_number().await?;

println!("Latest block number: {latest_block}");

Ok(())

}