getRecentBlockhashConfig

Deprecated: The getRecentBlockhash method is deprecated. Use getLatestBlockhash instead.

Note: This is not a standard Solana JSON-RPC method. It is a configuration reference helper. See the linked method above for the actual RPC endpoint.

This is not a standard Solana JSON-RPC method. It serves as a configuration reference for the deprecated getRecentBlockhash method. Since getRecentBlockhash itself is deprecated, new applications should use getLatestBlockhash which provides blockhash validity information through lastValidBlockHeight.

Parameters

This method does not accept any parameters.

Configuration object fields:

FieldTypeDescription
commitmentstringCommitment level: processed, confirmed, or finalized

Response

This is a configuration reference. See getRecentBlockhash for the response format (deprecated).

Code Examples

cURL

1curl http://[IP_ADDRESS]:[PORT] -X POST -H "Content-Type: application/json" -d '{
2  "jsonrpc": "2.0",
3  "id": 1,
4  "method": "getRecentBlockhash",
5  "params": [
6    { "commitment": "finalized" }
7  ]
8}'

TypeScript

1const response = await fetch("http://[IP_ADDRESS]:[PORT]", {
2  method: "POST",
3  headers: { "Content-Type": "application/json" },
4  body: JSON.stringify({
5    jsonrpc: "2.0",
6    id: 1,
7    method: "getRecentBlockhash",
8    params: [
9      { commitment: "finalized" }
10    ]
11  }),
12});
13const { result } = await response.json();
14console.log("Blockhash:", result.value.blockhash);

Python

1import requests
2
3response = requests.post("http://[IP_ADDRESS]:[PORT]", json={
4    "jsonrpc": "2.0",
5    "id": 1,
6    "method": "getRecentBlockhash",
7    "params": [
8        {"commitment": "finalized"}
9    ]
10})
11result = response.json()["result"]
12print(f"Blockhash: {result['value']['blockhash']}")

Rust

1use reqwest::Client;
2use serde_json::json;
3
4#[tokio::main]
5async fn main() -> Result<(), Box<dyn std::error::Error>> {
6    let client = Client::new();
7    let res = client.post("http://[IP_ADDRESS]:[PORT]")
8        .json(&json!({
9            "jsonrpc": "2.0",
10            "id": 1,
11            "method": "getRecentBlockhash",
12            "params": [
13                {"commitment": "finalized"}
14            ]
15        }))
16        .send().await?
17        .text().await?;
18    println!("{}", res);
19    Ok(())
20}

Example Response

1{
2  "jsonrpc": "2.0",
3  "result": {
4    "context": { "slot": 123456789 },
5    "value": {
6      "blockhash": "GJxqhuxcgfn5Tcj6y3f8X4FeCDd2RQ6SnEMo1AAxrPRZ",
7      "feeCalculator": { "lamportsPerSignature": 5000 }
8    }
9  },
10  "id": 1
11}
PreviousgetConfirmedTransactionNextgRPC