Function freetsa::timestamp_file

pub async fn timestamp_file(
    path: impl AsRef<Path>
) -> Result<TimestampResponse, TimestampFileError>

Timestamp a file.

This method generates a SHA512 hash of the specified file and submits it to FreeTSA to be timestamped.

This method is available only if freetsa is built with the "file" feature.

Example

use freetsa::prelude::*;
use tokio::fs::OpenOptions;
use tokio::io::AsyncWriteExt;

#[tokio::main]
async fn main() {
    // request timestamp with automatically generated file hash
    let TimestampResponse { reply, .. } = timestamp_file("path/to/file").await.unwrap();
    // create file where we'll persist the timestamp reply
    let mut reply_file = OpenOptions::new()
        .create(true)
        .write(true)
        .open("example.tsr")
        .await
        .unwrap();
    // write timestamp reply to file
    reply_file.write_all(&reply).await.unwrap();
    // ensure os has completed writing all data
    reply_file.flush().await.unwrap();
}